Home | << 1 >> |
Record | |||||
---|---|---|---|---|---|
Author | Parsons, T.G.; Hadermann, J.; Halasyamani, P.S.; Hayward, M.A. | ||||
Title | Preparation of the noncentrosymmetric ferrimagnetic phase La0.9Ba0.1Mn0.96O2.43 by topochemical reduction | Type | A1 Journal article | ||
Year | 2020 | Publication | Journal Of Solid State Chemistry | Abbreviated Journal | J Solid State Chem |
Volume | 287 | Issue | Pages | 121356-121357 | |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | Topochemical reduction of La0.9Ba0.1MnO3 with NaH at 225 degrees C yields the brownmillerite phase La0.9Ba0.1MnO2.5. However, reduction with CaH2 at 435 degrees C results in the formation of La0.9Ba0.1Mn0.96O2.43 via the deintercalation of both oxide anions and manganese cations from the parent perovskite phase. Electron and neutron diffraction data reveal La0.9Ba0.1Mn0.96O2.43 adopts a complex noncentrosymmetric structure, described in space group I23, confirmed by SHG measurements. Low-temperature neutron diffraction data reveal La0.9Ba0.1Mn0.96O2.43 adopts an ordered magnetic structure in which all the nearest neighbor interactions are antiferromagnetic. However, the presence of ordered manganese cation-vacancies results in a net ferrimagnetic structure with net saturated moment of 0.157(2) mu B per manganese center. | ||||
Address | |||||
Corporate Author | Thesis | ||||
Publisher | Place of Publication | Editor | |||
Language | Wos | 000533632700029 | Publication Date | 2020-04-05 | |
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 | 3.3 | Times cited | Open Access | Not_Open_Access | |
Notes | ; We thank the EPSRC for funding this work and E. Suard for assisting with the collection of the neutron powder diffraction data. PSH thanks the Welch Foundation (Grant E-1457) for support. ; | Approved | Most recent IF: 3.3; 2020 IF: 2.299 | ||
Call Number | UA @ admin @ c:irua:169450 | Serial | 6583 | ||
Permanent link to this record |