Magnetization of Mn1–xFexSi in high magnetic fields up to 50 T: Possible evidence of a field-induced Griffiths phase
- Авторы: Demishev S.V.1,2, Vanacken J.3, Kagan M.Y.2,4, Grigoriev S.V.5,6, Dyadkin V.A.5,7, Chubova N.M.5, Sluchanko N.E.1,8, Lobanova I.I.1,8, Glushkov V.V.1,8, Huang J.3, Samarin A.N.1,8, Moshchalkov V.V.3
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Учреждения:
- Prokhorov General Physics Institute
- National Research University Higher School of Economics
- Department of Physics and Astronomy
- Kapitza Institute for Physical Problems
- Petersburg Nuclear Physics Institute
- St. Petersburg State University
- Swiss–Norwegian Beamlines at the European Synchrotron Radiation Facility
- Moscow Institute of Physics and Technology (State University)
- Выпуск: Том 104, № 2 (2016)
- Страницы: 116-123
- Раздел: Condensed Matter
- URL: https://journals.rcsi.science/0021-3640/article/view/159292
- DOI: https://doi.org/10.1134/S0021364016140022
- ID: 159292
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Аннотация
Magnetic properties of single crystals of Mn1–xFexSi solid solutions with x < 0.2 are investigated by pulsed field technique in magnetic fields up to 50 T. It is shown that magnetization of Mn1–xFexSi in the paramagnetic phase follows power law with the exponents M(B) ~ Bα, which starts above characteristic fields Bc ~ 1.5-7 T depending on the sample composition and lasts up to highest used magnetic field. Analysis of magnetization data including SQUID measurements in magnetic fields below 5 T suggests that this anomalous behavior may be likely attributed to the formation of a field-induced Griffiths phase in the presence of spin-polaron effects.
Об авторах
S. Demishev
Prokhorov General Physics Institute; National Research University Higher School of Economics
Автор, ответственный за переписку.
Email: demis@lt.gpi.ru
Россия, Moscow, 119991; Moscow, 101000
J. Vanacken
Department of Physics and Astronomy
Email: demis@lt.gpi.ru
Бельгия, Leuven, B-3001
M. Kagan
National Research University Higher School of Economics; Kapitza Institute for Physical Problems
Email: demis@lt.gpi.ru
Россия, Moscow, 101000; Moscow, 119334
S. Grigoriev
Petersburg Nuclear Physics Institute; St. Petersburg State University
Email: demis@lt.gpi.ru
Россия, Gatchina, 188300; St. Petersburg, 198504
V. Dyadkin
Petersburg Nuclear Physics Institute; Swiss–Norwegian Beamlines at the European Synchrotron Radiation Facility
Email: demis@lt.gpi.ru
Россия, Gatchina, 188300; Grenoble, 38000
N. Chubova
Petersburg Nuclear Physics Institute
Email: demis@lt.gpi.ru
Россия, Gatchina, 188300
N. Sluchanko
Prokhorov General Physics Institute; Moscow Institute of Physics and Technology (State University)
Email: demis@lt.gpi.ru
Россия, Moscow, 119991; Dolgoprudnyi, Moscow region, 141700
I. Lobanova
Prokhorov General Physics Institute; Moscow Institute of Physics and Technology (State University)
Email: demis@lt.gpi.ru
Россия, Moscow, 119991; Dolgoprudnyi, Moscow region, 141700
V. Glushkov
Prokhorov General Physics Institute; Moscow Institute of Physics and Technology (State University)
Email: demis@lt.gpi.ru
Россия, Moscow, 119991; Dolgoprudnyi, Moscow region, 141700
J. Huang
Department of Physics and Astronomy
Email: demis@lt.gpi.ru
Бельгия, Leuven, B-3001
A. Samarin
Prokhorov General Physics Institute; Moscow Institute of Physics and Technology (State University)
Email: demis@lt.gpi.ru
Россия, Moscow, 119991; Dolgoprudnyi, Moscow region, 141700
V. Moshchalkov
Department of Physics and Astronomy
Email: demis@lt.gpi.ru
Бельгия, Leuven, B-3001
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