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Author Parsons, T.G.; Hadermann, J.; Halasyamani, P.S.; Hayward, M.A. pdf  doi
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  Title Preparation of the noncentrosymmetric ferrimagnetic phase La0.9Ba0.1Mn0.96O2.43 by topochemical reduction Type A1 Journal article
  Year (down) 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  
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