Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10653630 | Solid State Communications | 2005 | 6 Pages |
Abstract
Ca2+-doping effects were studied on the N-type ferrimagnet of NdVO3. The chemical pressures by Ca2+-doping induced lowering of ferrimagnetic transition temperature Tc and compensation temperature θc, resulting in the phase transition from N- to P-type ferrimagnetic phase. In the N-phase, spontaneous magnetization Msp becomes zero at finite temperature θc and in the P-phase, Msp is positive in whole temperature range. It was revealed that NdVO3 and Ca0.1Nd0.9VO3 located in the N-phase and Ca0.2Nd0.8VO3 in the P-phase. This NâP transition by the chemical pressure was discussed by the intra- and inter-sublattice exchange integrals estimated from the molecular field approximation.
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Materials Science
Materials Science (General)
Authors
Y. Kimishima, M. Uehara, T. Saitoh,