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- Title
Phase Transition with Suppression of Magnetism in BiFeO<sub>3</sub> at High Pressure.
- Authors
Gavriliuk, A. G.; Struzhkin, V. V.; Lyubutin, I. S.; Hu, M. Y.; Mao, H. K.
- Abstract
The magnetic behavior of a Bi57FeO3 powdered sample was studied at high pressures by the method of nuclear forward scattering (NFS) of synchrotron radiation. The NFS spectra from 57Fe nuclei were recorded at room temperature under high pressures up to 61.4 GPa, which were created in a diamond anvil cell. In the pressure interval 0 < P < 47 GPa, the magnetic hyperfine field HFe at the 57Fe nuclei increased reaching a value of ∼52.5 T at 30 GPa, and then it slightly decreased to ∼49.6 T at P = 47 GPa. As the pressure was increased further, the field HFe abruptly dropped to zero testifying a transition from the antiferromagnetic to a nonmagnetic state (magnetic collapse). In the pressure interval 47 < P < 61.4 GPa, the value of HFe remained zero. The field HFe recovered to the low-pressure values during decompression. © 2005 Pleiades Publishing, Inc.
- Subjects
MAGNETISM; PHYSICAL sciences; FERROMAGNETISM; CELL nuclei
- Publication
JETP Letters, 2005, Vol 82, Issue 4, p224
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.2121819