Superexchange interaction in orbitally fluctuating RVO3 |
| |
| Authors: | Zhou J-S Goodenough J B Yan J-Q Ren Y |
| |
| Institution: | Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712, USA. |
| |
| Abstract: | Changes in pressure and magnetic field in the orbital and magnetic ordering temperatures of RVO3 perovskites are reported; they reveal a competition between two magnetic orbitally ordered phases that have opposite preferences for the e-orbital component in the localized {3}T{1g} ground state of the V(3+) ion. This competition is shown to be biased by the VO{6/2} site distortion intrinsic to the orthorhombic structure. A remarkable enhancement of T{N} with pressure is found where the competition leads to enhanced orbital critical fluctuations. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
