Magnetic field induced slow magnetic relaxation in KEr(MoO4)2

V. Tkáɥ; A. Orendáɥová; R. Tarasenko; D. M. Pajerowski; E. ɤizmár; M. Orendáɥ; A. G. Anders; M. W. Meisel; A. Feher

doi:10.12693/APhysPolA.127.353

Magnetic field induced slow magnetic relaxation in KEr(MoO₄)₂

V. Tkáɥ, A. Orendáɥová, R. Tarasenko, D. M. Pajerowski, E. ɤizmár, M. Orendáɥ, A. G. Anders, M. W. Meisel, A. Feher

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1 Scopus citations

Abstract

The spin dynamics of a layered magnetic insulator, KEr(MoO₄)₂, have been investigated in a magnetic field applied along the easy axis at temperatures where the magnetism is dominated by the occupation of a ground doublet. More specifically, the DC magnetization and AC susceptibility were studied in magnetic fields up to 5 T and at temperatures ranging from 1.8 to 20 K. The temperature dependence of the AC susceptibility suggests a slowing down of magnetic relaxation with increasing magnetic field. The magnetic field dependence of the AC susceptibility, studied at nominally 2 K, indicates the presence of low-field, intermediate-field, and high- field regimes characterized by the interplay of internal and external magnetic fields that give rise to different relaxation processes.

Original language	English
Pages (from-to)	353-355
Number of pages	3
Journal	Acta Physica Polonica A
Volume	127
Issue number	2
DOIs	https://doi.org/10.12693/APhysPolA.127.353
State	Published - Feb 1 2015
Externally published	Yes

Funding

Funders	Funder number
National Stroke Foundation	DMR-0701400, DMR-1202033

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10.12693/APhysPolA.127.353

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title = "Magnetic field induced slow magnetic relaxation in KEr(MoO4)2",

abstract = "The spin dynamics of a layered magnetic insulator, KEr(MoO4)2, have been investigated in a magnetic field applied along the easy axis at temperatures where the magnetism is dominated by the occupation of a ground doublet. More specifically, the DC magnetization and AC susceptibility were studied in magnetic fields up to 5 T and at temperatures ranging from 1.8 to 20 K. The temperature dependence of the AC susceptibility suggests a slowing down of magnetic relaxation with increasing magnetic field. The magnetic field dependence of the AC susceptibility, studied at nominally 2 K, indicates the presence of low-field, intermediate-field, and high- field regimes characterized by the interplay of internal and external magnetic fields that give rise to different relaxation processes.",

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AU - Tkáɥ, V.

AU - Orendáɥová, A.

AU - Tarasenko, R.

AU - Pajerowski, D. M.

AU - ɤizmár, E.

AU - Orendáɥ, M.

AU - Anders, A. G.

AU - Meisel, M. W.

AU - Feher, A.

PY - 2015/2/1

Y1 - 2015/2/1

N2 - The spin dynamics of a layered magnetic insulator, KEr(MoO4)2, have been investigated in a magnetic field applied along the easy axis at temperatures where the magnetism is dominated by the occupation of a ground doublet. More specifically, the DC magnetization and AC susceptibility were studied in magnetic fields up to 5 T and at temperatures ranging from 1.8 to 20 K. The temperature dependence of the AC susceptibility suggests a slowing down of magnetic relaxation with increasing magnetic field. The magnetic field dependence of the AC susceptibility, studied at nominally 2 K, indicates the presence of low-field, intermediate-field, and high- field regimes characterized by the interplay of internal and external magnetic fields that give rise to different relaxation processes.

AB - The spin dynamics of a layered magnetic insulator, KEr(MoO4)2, have been investigated in a magnetic field applied along the easy axis at temperatures where the magnetism is dominated by the occupation of a ground doublet. More specifically, the DC magnetization and AC susceptibility were studied in magnetic fields up to 5 T and at temperatures ranging from 1.8 to 20 K. The temperature dependence of the AC susceptibility suggests a slowing down of magnetic relaxation with increasing magnetic field. The magnetic field dependence of the AC susceptibility, studied at nominally 2 K, indicates the presence of low-field, intermediate-field, and high- field regimes characterized by the interplay of internal and external magnetic fields that give rise to different relaxation processes.

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JO - Acta Physica Polonica A

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Magnetic field induced slow magnetic relaxation in KEr(MoO₄)₂

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