Effect of Oxygen Pressure on the Thermodynamic Stability of Nd0.85Ba0.15MnO3

被引:5
作者
Fedorova, O. M. [1 ]
Vedmid, L. B. [1 ,2 ]
Dimitrov, V. M. [1 ]
机构
[1] Russian Acad Sci, Inst Met, Ural Branch, Ul Amundsena 101, Ekaterinburg 620016, Russia
[2] Yeltsin Fed Univ, Ul Mira 19, Ekaterinburg 620002, Russia
关键词
rare-earth manganites; oxygen nonstoichiometry; oxygen partial pressure; MAGNETIC-PROPERTIES; PR; PEROVSKITES; DISORDER; CRYSTAL; ND;
D O I
10.1134/S0020168519100030
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper presents a study of the structure of the Nd0.85Ba0.15MnO3 compound and its stability at a reduced oxygen partial pressure. Structural characteristics of Nd0.85Ba0.15MnO3 have been determined by X-ray diffraction. The sequence of phase transformations in the Nd-Ba-Mn-O system as the oxygen pressure decreases from atmospheric to -21 atm has been identified by a static method using a vacuum circulation apparatus.
引用
收藏
页码:1026 / 1030
页数:5
相关论文
共 14 条
[1]   A new ordered oxygen-deficient manganite perovskite:: LaBaMn2O5.5.: Crystal and magnetic structure [J].
Caignaert, V ;
Millange, F ;
Domengès, B ;
Raveau, B ;
Suard, E .
CHEMISTRY OF MATERIALS, 1999, 11 (04) :930-938
[2]  
Cherepanov V. A., 2015, CHIM TECH ACTA, V4, P289
[3]   Phase equilibria in the LaCoO3-LaMnO3-BaCoOz-BaMnO3 system [J].
Cherepanov, VA ;
Filonova, EA ;
Voronin, VI ;
Berger, IF .
JOURNAL OF SOLID STATE CHEMISTRY, 2000, 153 (02) :205-211
[4]   Structural, transport, and magnetic properties of RMnO3 perovskites (R = La, Pr, Nd, Sm, 153Eu, Dy) [J].
Dabrowski, B ;
Kolesnik, S ;
Baszczuk, A ;
Chmaissem, O ;
Maxwell, T ;
Mais, J .
JOURNAL OF SOLID STATE CHEMISTRY, 2005, 178 (03) :629-637
[5]   Colossal magnetoresistant materials: The key role of phase separation [J].
Dagotto, E ;
Hotta, T ;
Moreo, A .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2001, 344 (1-3) :1-153
[6]  
Islam M., 2015, J NANOTECHOL MAT SCI, V2, P1
[7]   NONSTOICHIOMETRY AND PHASE-TRANSITION IN NDMNO3 [J].
KAMEGASHIRA, N ;
MIYAZAKI, Y .
MATERIALS RESEARCH BULLETIN, 1984, 19 (09) :1201-1206
[8]   Study of Jahn-Teller phase transitions in nonstoichiometric RMnO(3+x) orthomanganites (R=La,Nd,Sm,Eu) [J].
Kasper, NV ;
Troyanchuk, IO .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1996, 57 (11) :1601-1607
[9]   Novel effects of size disorder on the electronic and magnetic properties of rare earth manganates of the type La0.7-xLnxBa0.3Mn03 (Ln = Pr, Nd, Gd or Dy) with large average radius of the A-site cations [J].
Kundu, AK ;
Seikh, MM ;
Ramesha, K ;
Rao, CNR .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (26) :4171-4180
[10]  
Larson AC, 1986, MSH805 LANSCE