Structural study of CaMn1−xMoxO3 (0.08 ≤ x ≤ 0.12) system by neutron powder diffraction
Neutron powder diffraction experiments and magnetic measurements in polycrystalline CaMn1−xMoxO3 (x = 0.08, 0.10, 0.12) point towards a possible charge and orbital order in this system. The analysis of structural and magnetic data show that the samples present structural phase transformation from Pn...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2016 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/155987 |
| Acesso em linha: | http://hdl.handle.net/10261/155987 |
| Access Level: | acceso abierto |
| Palavra-chave: | Structural properties Magnetic properties Neutron scattering |
| Resumo: | Neutron powder diffraction experiments and magnetic measurements in polycrystalline CaMn1−xMoxO3 (x = 0.08, 0.10, 0.12) point towards a possible charge and orbital order in this system. The analysis of structural and magnetic data show that the samples present structural phase transformation from Pnma to P21/m space group and the system has a C-type antiferromagnetic configuration at low temperature. A detailed analysis of the bond distances signals a small Jahn-Teller distortion of only one (x = 0.08) or of the two Mn ions (x = 0.10, 0.12). We identify the partially occupied eg orbitals and this explains the C-type magnetic structure. |
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