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Письма в Журнал экспериментальной и теоретической физики, 2005, том 82, выпуск 4, страницы 243–246
(Mi jetpl1542)
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Эта публикация цитируется в 56 научных статьях (всего в 56 статьях)
КОНДЕНСИРОВАННЫЕ СРЕДЫ
Phase Transition with Suppression of Magnetism in $\mathrm{BiFeO_3}$ at High Pressure
A. G. Gavriliukabc, V. V. Struzhkinc, I. S. Lyubutina, M. Hud, H. K. Maoc a Institute of Cristallography RAS
b Institute for High Pressure Physics RAS
c Geophysical Laboratory, Carnegie Institution of Washington, Washington DC 20015, USA
d HPCAT, Carnegie Institution of Washington, Advanced Photon Source, ANL, Argonne, IL 60439, USA
Аннотация:
Magnetic behavior of a $\mathrm{Bi^{57}FeO_3}$ powdered sample was studied at high pressures by the method of nuclear forward scattering (NFS) of synchrotron radiation. The NFS spectra from $\mathrm{^{57}Fe}$ nuclei were recorded at room temperature under high pressures up to 61.4 GPa created in a diamond anvil cell. In the pressure interval $0<P<47\,$GPa, the magnetic hyperfine field $H^\mathrm{Fe}$ at the $\mathrm{^{57}Fe}$ nuclei increased reaching a value of $\sim52.5\,$T at 30 GPa, and then it slightly decreased to $\sim49.6\,$T at $P=47\,$GPa. As the pressure was increased further, the field $H^\mathrm{Fe}$ has 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 $H^\mathrm{Fe}$ remained zero. The field $H^\mathrm{Fe}$ has recovered to low-pressure values during decompression.
Образец цитирования:
A. G. Gavriliuk, V. V. Struzhkin, I. S. Lyubutin, M. Hu, H. K. Mao, “Phase Transition with Suppression of Magnetism in $\mathrm{BiFeO_3}$ at High Pressure”, Письма в ЖЭТФ, 82:4 (2005), 243–246; JETP Letters, 82:4 (2005), 224–227
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl1542 https://www.mathnet.ru/rus/jetpl/v82/i4/p243
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