Synthesis, structure and magnetic properties of A2MnB′O6 (A=Ca, Sr; B′=Sb, Ta) double perovskites
作者： Tapas Kumar Mandal , Viktor V. Poltavets , Mark Croft , Martha Greenblatt
DOI: 10.1016/J.JSSC.2008.04.038
关键词: X-ray crystallography 、 Crystallography 、 Magnetic susceptibility 、 Ferromagnetism 、 Magnetic structure 、 Crystal structure 、 Rietveld refinement 、 Magnetization 、 Absorption spectroscopy 、 Chemistry
摘要: A2MnB 0 O6 (A ¼ Ca, Sr; B Sb, Ta) double perovskites have been synthesized and their structural magnetic properties investigated. Rietveld refinement of the powder X-ray diffraction data for Sr2MnSbO6 indicated significant ordering Mn Sb at B-site while all other phases showed mostly a random distribution cations. absorption spectroscopic established presence in 3+ Sb/Ta 5+ oxidation states phases. Magnetic susceptibility ferromagnetic correlations with Weiss temperatures varying from 64 to 107 K.
harvard.edu
osti.gov
elsevier.com
sci-hub.se 参考文章(34)
Vitalij K. Pecharsky, Peter Y. Zavalij, Fundamentals of Powder Diffraction and Structural Characterization of Materials ,(2003)
Naoki Kobayashi, Kiwamu Nishida, Continuous excitation of planetary free oscillations by atmospheric disturbances Nature. ,vol. 395, pp. 357- 360 ,(1998) , 10.1038/26427
H. Y. Hwang, S-W. Cheong, N. P. Ong, B. Batlogg, Spin-Polarized Intergrain Tunneling in La 2/3 Sr 1/3 MnO 3 Physical Review Letters. ,vol. 77, pp. 2041- 2044 ,(1996) , 10.1103/PHYSREVLETT.77.2041
K.-I. Kobayashi, T. Kimura, H. Sawada, K. Terakura, Y. Tokura, Room-temperature magnetoresistance in an oxide material with an ordered double-perovskite structure Nature. ,vol. 395, pp. 677- 680 ,(1998) , 10.1038/27167
Masanori Abe, Takehiko Nakagawa, Shōichiro Nomura, Magnetic and Mössbauer Studies of the Ordered Perovskites Sr2Fe1+xRe1-xO6 Journal of the Physical Society of Japan. ,vol. 35, pp. 1360- 1365 ,(1973) , 10.1143/JPSJ.35.1360
Victor Poltavets, K Vidyasagar, Martin Jansen, Crystal structures and magnetic properties of CaSbxMn1−xO3 perovskites Journal of Solid State Chemistry. ,vol. 177, pp. 1285- 1291 ,(2004) , 10.1016/J.JSSC.2003.11.002
P. Woodward, R-D. Hoffmann, A.W. Sleight, ORDER-DISORDER IN A2M3+M5+O6 PEROVSKITES Journal of Materials Research. ,vol. 9, pp. 2118- 2127 ,(1994) , 10.1557/JMR.1994.2118
Frank K. Patterson, Carl W. Moeller, Roland Ward, Magnetic Oxides of Molybdenum(V) and Tungsten(V) with the Ordered Perovskite Structure Inorganic Chemistry. ,vol. 2, pp. 196- 198 ,(1963) , 10.1021/IC50005A050
M. Croft, D. Sills, M. Greenblatt, C. Lee, S.-W. Cheong, K. V. Ramanujachary, D. Tran, Systematic Mn d-configuration change in the La 1 − x Ca x MnO 3 system: A Mn K-edge XAS study Physical Review B. ,vol. 55, pp. 8726- 8732 ,(1997) , 10.1103/PHYSREVB.55.8726
Francis Galasso, Lewis Katz, Roland Ward, Substitution in the Octahedrally Coördinated Cation Positions in Compounds of the Perovskite Type1,2 Journal of the American Chemical Society. ,vol. 81, pp. 820- 823 ,(1959) , 10.1021/JA01513A018