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Author	Tang, Y.; Sena, R.P.; Aydeev, M.; Battle, P.D.; Cadogan, J.M.; Hadermann, J.; Hunter, E.C.
Title	Magnetic properties of the 6H perovskite Ba₃Fe₂TeO₉			Type	A1 Journal article
Year	2017	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	253	Issue		Pages	347-354
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	A polycrystalline sample of Ba3Fe2TeO9 having the 6H perovskite structure has been prepared in a solid-state reaction and studied by a combination of electron microscopy, Mossbauer spectroscopy, magnetometry, X-ray diffraction and neutron diffraction. Partial ordering of Fe3+ and Te6+ cations occurs over the six-coordinate sites; the corner-sharing octahedra are predominantly occupied by the former and the face-sharing octahedra by a 1:1 mixture of the two. On cooling through the temperature range 18 < T/K < 295 an increasing number of spins join an antiferromagnetic backbone running through the structure while the remainder show complex relaxation effects. At 3 K an antiferromagnetic phase and a spin glass coexist.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000406572600047	Publication Date	2017-06-22
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.299	Times cited	6	Open Access	OpenAccess
Notes	; We thank EPSRC for financial support through grant EP/M018954/1. ;			Approved	Most recent IF: 2.299
Call Number	UA @ lucian @ c:irua:145692			Serial	4743
Permanent link to this record



Author	Chin, C.-M.; Battle, P.D.; Blundell, S.J.; Hunter, E.; Lang, F.; Hendrickx, M.; Sena, R.P.; Hadermann, J.
Title	Comparative study of the magnetic properties of La₃Ni₂B'O₉ for B' = Nb, Ta or Sb			Type	A1 Journal article
Year	2018	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	258	Issue	258	Pages	825-834
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Polycrystalline samples of La3Ni2NbO9 and La3Ni2TaO9 have been characterised by X-ray and neutron diffraction, electron microscopy, magnetometry and muon spin relaxation (mu SR); the latter technique was also applied to La3Ni2SbO9. On the length scale of a neutron diffraction experiment, the six-coordinate sites of the monoclinic perovskite structure are occupied in a 1:1 ordered manner by Ni and a random 1/3Ni/2/3B' mixture. Electron microscopy demonstrated that this 1:1 ordering is maintained over microscopic distances, although diffuse scattering indicative of short-range ordering on the mixed site was observed. No magnetic Bragg scattering was observed in neutron diffraction patterns collected from La3Ni2B'O-9 (B' = Nb or Ta) at 5 K although in each case mu SR identified the presence of static spins below 30 K. Magnetometry showed that La3Ni2NbO9 behaves as a spin glass below 29 K but significant short-range interactions are present in La3Ni2NbO9 below 85 K. The contrasting properties of these compounds are discussed in terms of their microstructure.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000423650400107	Publication Date	2017-12-20
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.299	Times cited	6	Open Access	Not_Open_Access
Notes	; We thank EPSRC for funding through Grants EP/M0189541 and EP/N023803. CMC thanks the Croucher Foundation and Oxford University for a graduate scholarship. We are grateful E. Suard for experimental assistance at ILL. ;			Approved	Most recent IF: 2.299
Call Number	UA @ lucian @ c:irua:149284			Serial	4928
Permanent link to this record



Author	Istomin, S.Y.; Morozov, A.V.; Abdullayev, M.M.; Batuk, M.; Hadermann, J.; Kazakov, S.M.; Sobolev, A.V.; Presniakov, I.A.; Antipov, E.V.
Title	High-temperature properties of (La,Ca)(Fe,Mg,Mo)O_3-\delta perovskites as prospective electrode materials for symmetrical SOFC			Type	A1 Journal article
Year	2018	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	258	Issue	258	Pages	1-10
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	La1-yCayFe0.5+x(Mg,Mo)(0.5-x)O3-delta oxides with the orthorhombic GdFeO3-type perovskite structure have been synthesized at 1573 K. Transmission electron microscopy study for selected samples shows the coexistence of domains of perovskite phases with ordered and disordered B-cations. Mossbauer spectroscopy studies performed at 300 K and 573 K show that while compositions with low Ca-content (La0.55Ca0.45Fe0.5Mg0.2625Mo0.2375O3-delta and La0.5Ca0.5Fe0.6Mg0.175Mo0.225O3-delta) are nearly oxygen stoichiometric, La0.2Ca0.8Fe0.5Mg0.2625Mo0.2375O3-delta is oxygen deficient with delta approximate to 0.15. Oxides are stable in reducing atmosphere (Ar/H-2, 8%) at 1173 K for 12 h. No additional phases have been observed at XRPD patterns of all studied perovskites and Ce1-xGdxO2-x/2 electrolyte mixtures treated at 1173-1373K, while Fe-rich compositions (x >= 0.1) react with Zr1-xYxO2-x/2 electrolyte above 1273 K. Dilatometry studies reveal that all samples show rather low thermal expansion coefficients (TECs) in air of 11.4-12.7 ppm K-1. In reducing atmosphere their TECs were found to increase up to 12.1-15.4 ppm K-1 due to chemical expansion effect. High-temperature electrical conductivity measurements in air and Ar/H-2 atmosphere show that the highest conductivity is observed for Fe- and Ca-rich compositions. Moderate values of electrical conductivity and TEC together with stability towards chemical interaction with typical SOFC electrolytes make novel Fe-containing perovskites promising electrode materials for symmetrical solid oxide fuel cell.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000423650400001	Publication Date	2017-10-11
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.299	Times cited	5	Open Access	Not_Open_Access
Notes	; This work was financially supported by Russian Science Foundation (project number 16-13-10327). ;			Approved	Most recent IF: 2.299
Call Number	UA @ lucian @ c:irua:149283			Serial	4936
Permanent link to this record



Author	Chin, C.-M.; Battle, P.D.; Hunter, E.C.; Avdeev, M.; Hendrickx, M.; Hadermann, J.
Title	Stabilisation of magnetic ordering in La₃Ni_2-xCu_xB'O₉(B'=Sb,Ta,Nb) by the introduction of Cu²⁺			Type	A1 Journal article
Year	2019	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	276	Issue	276	Pages	164-172
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	La3Ni2-xCuxB'O-9 (x = 0.25; B' = Sb, Ta, Nb: x = 0.5; B' = Nb) have been synthesized and characterised by transmission electron microscopy, neutron diffraction and magnetometry. Each adopts a perovskite-like structure (space group P2(1)/n) with two crystallographically-distinct six-coordinate sites, one occupied by a disordered arrangement of Ni2+ and Cu2+ and the other by a disordered similar to 1:2 distribution of Ni2+ and B'(5+), although some Cu2+ is found on the latter site when x = 0.5. Each composition undergoes a magnetic transition in the range 90 <= T/K <= 130 and shows a spontaneous magnetisation at 5 K; the transition temperature always exceeds that of the x = 0 composition by >= 30 K. A long-range ordered G-type ferrimagnetic structure is present in each composition, but small relaxor domains are also present. This contrasts with the pure relaxor and spin-glass behaviour of x = 0, B' = Ta, Nb, respectively.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000473372400023	Publication Date	2019-05-09
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.299	Times cited	2	Open Access
Notes	; We thank EPSRC for funding through grant EP/M0189541. CMC thanks the Croucher Foundation and the University of Oxford for the award of a graduate scholarship. ;			Approved	Most recent IF: 2.299
Call Number	UA @ admin @ c:irua:161199			Serial	5396
Permanent link to this record



Author	Kirsanova, M.A.; De Sloovere, D.; Karakulina, O.M.; Hadermann, J.; Van Bael, M.K.; Hardy, A.; Abakumov, A.M.
Title	Toward unlocking the Mn³⁺/Mn²⁺ redox pair in alluaudite-type Na_2+2zMn_2-z(SO₄)_3-x(SeO₄)_x cathodes for sodium-ion batteries			Type	A1 Journal article
Year	2019	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	277	Issue	277	Pages	804-810
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	In polyanion cathodes, the inductive effect alters the potential of a M(n+1)+/Mn+ redox couple (M – transition metal) according to the electronegativity of the X cation in the polyanion groups (XO4m+). To manipulate the operating potential, we synthesized a series of mixed sulfate-selenate alluaudites, with structure formulas Na2+2zMn2-z(SO4)(3-x)(SeO4)(x) and Na2.81Ni1.60(SO4)(1.43)(SeO4)(1.57). Their crystal structure was determined from powder X-ray diffraction data, revealing that the Mn-based alluaudites form solid solutions with the same crystal structure for x = 0.75; 1.125 and 1.5. Na2.81Ni1.60(SO4)(1.43)(SeO4)(1.57) is isostructural to the Mn-based alluaudites. Although the Na2+2zMn2-z(SO4)(3-x)(SeO4)(x) compound with the highest selenium content demonstrates a reversible discharge capacity of 60 mAh g(-1), only a small part of this electrochemical activity can be ascribed to the Mn3+/Mn2+ redox couple. The redox potential of the Mn3+/Mn2+ pair in Na2+2zMn2-z(SO4)(3-)x(SeO4)(x) decreases with increasing values of x, in agreement with the lower electronegativity of Se compared to that of S.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000481726300103	Publication Date	2019-07-24
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record
Impact Factor	2.299	Times cited		Open Access
Notes	; The authors thank the Russian Foundation for Basic Research for financial support (grant 17-03-00370), in addition to Research Foundation-Flanders (project No G040116). ;			Approved	Most recent IF: 2.299
Call Number	UA @ admin @ c:irua:162852			Serial	5401
Permanent link to this record



Author	Hendrickx, M.; Tang, Y.; Hunter, E.C.; Battle, P.D.; Hadermann, J.
Title	Structural and magnetic properties of the perovskites A₂LaFe₂SbO₉ (A = Ca, Sr, Ba)			Type	A1 Journal article
Year	2021	Publication	Journal Of Solid State Chemistry	Abbreviated Journal	J Solid State Chem
Volume	295	Issue		Pages	121914
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Polycrystalline samples of A(2)LaFe(2)SbO(9) (A = Ca, Sr, Ba) perovskites appeared monophasic to X-ray or neutron powder diffraction but a single-crystal study utilising transmission electron microscopy revealed a greater level of complexity. Although local charge balance is maintained, compositional and structural variations are present among and within the submicron-sized crystals. Despite the inhomogeneity, A = Ca is monophasic with a partially-ordered distribution of Fe3+ and Sb5+ cations across two crystallographically-distinct octahedral sites, i.e. Ca2La(Fe1.25Sb0.25)(2d) (Fe0.75Sb0.75)(2c)O-9. For A = Sr or Ba, the inhomogeneities result in differences in the filling patterns of the octahedra and the ordering of the B cations. Particles of A = Sr contain a phase (Fe:Sb similar to 2:1) without B cation ordering and one (Fe:Sb similar to 1:1) with B cation ordering. Monophasic A = Ba lacks long-range cation order although ordered nanodomains are present within the disordered phase. The temperature dependence of the magnetic properties of each sample is discussed.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000615711800013	Publication Date	2020-12-17
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.299	Times cited		Open Access	OpenAccess
Notes				Approved	Most recent IF: 2.299
Call Number	UA @ admin @ c:irua:176663			Serial	6739
Permanent link to this record



Author	Golovachev, I.B.; Mychinko, M.Y.; Volkova, N.E.; Gavrilova, L.Y.; Raveau, B.; Maignan, A.; Cherepanov, V.A.
Title	Effect of cobalt content on the properties of quintuple perovskites Sm₂Ba₃Fe₅-xCoxO₁₅-δ			Type	A1 Journal article
Year	2021	Publication	Journal Of Solid State Chemistry	Abbreviated Journal	J Solid State Chem
Volume	301	Issue		Pages	122324
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Quintuple perovskites Sm2Ba3Fe5-xCoxO15-delta = 0.5, 1.0 and 1.5) have been prepared by glycerin-nitrate tech- nique in air. The phase purity was confirmed by XRD. Partial substitution of Co for Fe decreases the oxygen content and thus the mean oxidation state of 3d-metals. It also slightly decreases the thermal expansion coefficient of oxides. Positive value of the Seebeck coefficient confirmed p-type conductivity, though the thermopower decreases as the Co content increases. The temperature dependence of electrical conductivity reveals a maximum at 550-750 degrees C.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000684543700028	Publication Date	2021-06-03
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.299	Times cited		Open Access	OpenAccess
Notes				Approved	Most recent IF: 2.299
Call Number	UA @ admin @ c:irua:181656			Serial	6864
Permanent link to this record



Author	Hervieu, M.; Van Tendeloo, G.; Michel, C.; Martin, C.; Maignan, A.; Raveau, B.
Title	Synthesis and characterization of mercury based “1222” cuprates (Hg_1-xM_x)(Sr,Ba)₂Pr₂Cu₂O_9-\delta (M = Pr, Pb, Bi, Tl)			Type	A1 Journal article
Year	1995	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	115	Issue		Pages	525-531
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Five new layered cuprates, with a 1222-type structure, have been synthesized according to the formula (Hg(1-x)M(x))(Sr,Ba)(2) Pr2Cu2O9-delta with M = Pr, Pb, Pi, and Tl. They crystallize in a tetragonal cell with a approximate to a(p) and c approximate to 29.5 Angstrom; their structure consists in a triple intergrowth of oxygen-deficient perovskite, rock-salt-and fluorite-type layers. They are characterized by a mixed [Hg(1-x)M(x)O(1-delta)] layer in the rock-sail-type slice. The ED and HREM studies show that Tl, Bi, and Pb are statistically distributed in the mixed [Hg(1-x)M(x)O(1-delta)] layer, contrary to Pr which involves an ordering phenomenon along a. Different stacking defects are observed and discussed as well as the cleavage mode of the crystals. (C) 1995 Academic Press, Inc.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1995QN27700033	Publication Date	2002-10-07
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	5	Open Access
Notes				Approved	MATERIALS SCIENCE, MULTIDISCIPLINARY 135/271 Q2 # PHYSICS, APPLIED 70/145 Q2 # PHYSICS, CONDENSED MATTER 40/67 Q3 #
Call Number	UA @ lucian @ c:irua:13311			Serial	3412
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Author	Rykov, A.; Caignaert, V.; Van Tendeloo, G.; Greneche, J.M.; Studer, F.; Nguyen, N.; Ducouret, A.; Bonville, P.; Raveau, B.
Title	Structural aspects and antiferromagnetic ordering in the “123” derivative LnSr₂Cu₂Ga_1-xFe_xO_7-\delta (Ln = Y, Ho)			Type	A1 Journal article
Year	1994	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	113	Issue		Pages	94-108
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1994PP02200014	Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	9	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:10037			Serial	3204
Permanent link to this record



Author	Van Tendeloo, G.; Domengès, B.; Caldes, M.T.; Hervieu, M.; Raveau, B.
Title	Structural aspects of Li-doped tubular bismuth cuprates (Bi₂Sr₃Cu_2-xLi_xO_y): an electron microscopy study			Type	A1 Journal article
Year	1994	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	112	Issue		Pages	161-169
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1994PG30500027	Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record;
Impact Factor	2.133	Times cited		Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:10033			Serial	3208
Permanent link to this record



Author	Huvé, M.; Van Tendeloo, G.; Amelinckx, S.; Hervieu, M.; Raveau, B.
Title	Structural aspects of modulated superconducting oxides: application to Hg_1-xTl_xSr_4-yBa_yCu₂CO₃O_7-\delta			Type	A1 Journal article
Year	1995	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	120	Issue		Pages	332-342
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1995TN20700018	Publication Date	2002-10-07
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	2	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:13327			Serial	3209
Permanent link to this record



Author	Zhang, X.F.; Van Tendeloo, G.; Amelinckx, S.; Pelloquin, D.; Michel, C.; Hervieu, M.; Raveau, B.
Title	Structural aspects of Bi_2-xPb_xSr_3.5Cu₂(CO₃)O_8-\delta for 0\leq x\leq0.75 : an electron-microscopy study			Type	A1 Journal article
Year	1994	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	113	Issue	2	Pages	327-344
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The structure and defect structure of Bi2-xPbxSr3.5Cu2 (CO3)O8-delta compounds with 0 less-than-or-equal-to x less-than-or-equal-to 0.75 are carefully investigated by electron diffraction and high-resolution electron microscopy. All compounds have an orthorhombic structure with a almost-equal-to b almost-equal-to 5.4 angstrom and c almost-equal-to 39.5 angstrom. The length of the b-axis decreases monotonically with increasing x. The space group for the basic structure is Abm2. The structure can be considered as an intergrowth of Bi2Sr2CuO6 lamellae with Sr2CuO2 (CO3) lamellae along the c-axis. CO3 groups behave as bridges connecting the CuO6 octahedra. In the x = 0 compound the carbon atoms are shifted away from their symmetry positions; the orientational ordering of the CO3 groups (or the carbon shift) in successive CO planes alternates along +b and -b. Typical Bi-type and Pb-type modulations are found along the b-axis up to a Pb content x = 0.5. Electron beam irradiation destroys the ordering of the CO3 groups and alters the modulated structure. (C) 1994 Academic press, inc.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1994PX18600016	Publication Date	2002-10-07
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	8	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:99810			Serial	3210
Permanent link to this record



Author	Hervieu, M.; Pelloquin, D.; Michel, C.; Van Tendeloo, G.; Raveau, B.
Title	Structural characteristics of the 40K superconductor Bi₂Sr₅Cu₃(CO₃)₂O₁₀: a HREM study			Type	A1 Journal article
Year	1994	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	112	Issue		Pages	139-147
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1994PG30500024	Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	5	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:10034			Serial	3216
Permanent link to this record



Author	Van Tendeloo, G.; Amelinckx, S.; Darriet, B.; Bontchev, R.; Darriet, J.; Weill, F.
Title	Structural considerations and high-resolution electron-microscopy observations on La_nTi_n-\deltaO_3n(n\geq4\delta)			Type	A1 Journal article
Year	1994	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	108	Issue	2	Pages	314-335
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1994MU65200016	Publication Date	2002-10-07
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	29	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:99928			Serial	3226
Permanent link to this record



Author	Van Tendeloo, G.; Amelinckx, S.; Darriet, B.; Bontchev, R.; Darriet, J.; Weill, F.
Title	Structural considerations and HREM on La_nTi_n-\deltaO_3n (n≥4δ)			Type	A1 Journal article
Year	1994	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	108	Issue		Pages	314-335
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1994MU65200016	Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	29	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:10022			Serial	3227
Permanent link to this record



Author	Shpanchenko, R.V.; Nistor, L.; Van Tendeloo, G.; van Landuyt, J.; Amelinckx, S.
Title	Structural studies on new ternary oxides Ba₈Ta₄Ti₃O₂₄ and Ba₁₀Ta_7.04Ti_1.2O₃₀			Type	A1 Journal article
Year	1995	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	114	Issue	2	Pages	560-574
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The ternary oxides Ba8Ta4Ti3O24 and Ba10Ta7.04Ti1.2O30 were synthesized and their crystal structures and defects were studied by means of X-ray powder diffraction, electron diffraction, and high resolution electron microscopy. The crystal structure of Ba8Ta4Ti3O24 is based on the 8H (cchc)(2) close-packed stacking (a 10.0314 Angstrom, c = 18.869 Angstrom, SG P6(3)/mcm, Z = 3) and that of Ba10Ta7.04Ti1.2O30 and on the 10H (cchcc)(2) close-packed stacking (a = 5.7981 Angstrom, c = 23.755 Angstrom, SG P6(3)/mmc, Z = 1) of BaO3 layers. The structural refinements gave the following values for the R factors for Ba8Ta4Ti3O24 (Ba10Ta7.04Ti1.2O30) R(I) = 0.041 (0.039), R(P) = 0.108 (0.118), and R(wP) = 0.094 (0.099). The main feature of both structures is the presence of two types of face-sharing octahedra (FSO) with different occupancies by Ta atoms, Ti atoms, and vacancies, which results in the formation of a superstructure. It was shown that in the Ba8Ta4Ti3O24 structure these pairs of FSO occur in an ordered fashion and in the Ba10Ta7.04Ti1.2O30 structure in a disordered fashion. The existence of the wide range of solid solutions was shown to be also a consequence of the presence of one of the two types of face-sharing octahedra. (C) 1995 Academic Press, Inc,
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1995QH33100040	Publication Date	2002-10-07
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	23	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:13289			Serial	3261
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Author	Shpanchenko, R.V.; Abakumov, A.M.; Antipov, E.V.; Nistor, L.; Van Tendeloo, G.; Amelinckx, S.
Title	Structural study of the new complex oxides Ba_5-ySr_yR_2-xAl₂Zr_1+xO_13+x/2 (R=Gd-Lu, Y, Sc)			Type	A1 Journal article
Year	1995	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	118	Issue		Pages	180-192
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1995RN49200028	Publication Date	2002-10-07
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	8	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:13315			Serial	3263
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Author	Milat, O.; Van Tendeloo, G.; Amelinckx, S.; Babu, T.G.N.; Greaves, C.
Title	Structural variants of Ca_0.85CuO₂(Ca_5+xCu₆O₁₂)			Type	A1 Journal article
Year	1992	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	101	Issue	1	Pages	92-114
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The structure of Ca0.85CuO2 was reexamined by means of electron diffraction and electron microscopy using the newly developed method of selective imaging in intergrowth structures in which the two substructures are based on different sublattices. The results of previous work are confirmed. Moreover, it is shown that two stacking variants and their twin related structures occur in the calcium substructure. The copper-oxygen substructure occurs in one variant only; it is often modulated by the various calcium arrangements, leading to phase disorder in its modulation pattern. It is shown that the ribbons of CuO4 clusters are presumably tilted with respect to the (010) plane.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	A1992JW94200012	Publication Date	2006-06-12
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.133	Times cited	10	Open Access
Notes				Approved
Call Number	UA @ lucian @ c:irua:103021			Serial	3272
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