|
|||||
|
|
57Fe NMR study of a spatially modulated magnetic structure in BiFeO3 |
|
| Authors: | A. V. Zalesskii A. K. Zvezdin A. A. Frolov A. A. Bush |
| Affiliation: | (1) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333, Russia;(2) Institute of General Physics, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 117942, Russia;(3) Moscow State Institute of Radio Engineering, Electronics, and, Automation (Technical University), pr. Vernadskogo 78, Moscow, 117454, Russia |
| Abstract: | The 57 Fe spin echo spectra were studied in local magnetic fields of a BiFeO3 ferroelectric antiferromagnet over the temperature range 77–304 K. The line shape analysis confirmed the presence of a spatially modulated, incommensurate cycloidal spin structure in BiFeO3 and allowed the actual spin distribution to be reproduced throughout the cycloid length. The distribution was found to be essentially anharmonic. The modulated structure is stable over the whole temperature range studied. The cycloid wave becomes more harmonic with temperature elevation. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |