Magnetic Field Induced Slow Magnetic Relaxation in KEr(MoO₄)₂

• Authors: V. Tkáč , A. Orendáčová , R. Tarasenko , D. Pajerowski , E. Čižmár , M. Orendáč , A. Anders , M. Meisel , A. Feher
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

71.70.Ch; 75.30.Gw; 75.50.Xx; 75.78.-n

Discipline

• 75.30.Gw: Magnetic anisotropy
• 71.70.Ch: Crystal and ligand fields
• 75.78.-n: Magnetization dynamics
• 75.50.Xx: Molecular magnets

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 353-355

Dates

published

2015-02

Contributors

author

V. Tkáč

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

A. Orendáčová

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

R. Tarasenko

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

D. Pajerowski

• Department of Physics and the National High Magnetic Field Laboratory, University of Florida, Gainesville, Florida 32611-8440, USA

author

E. Čižmár

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

M. Orendáč

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

A. Anders

• B.I. Verkin Institute for Low Temperature Physics and Engineering of NASU, Lenin Av. 47, 611 03 Kharkov, Ukraine

author

M. Meisel

• Department of Physics and the National High Magnetic Field Laboratory, University of Florida, Gainesville, Florida 32611-8440, USA

author

A. Feher

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

References

• [1] V.I. Kuťko, Low Temp. Phys. 31, 1 (2005), doi: 10.1063/1.1820349
• [2] D. Horváth, A. Orendáčová, M. Orendáč, M. Jaščúr, B. Brutovský, A. Feher, Phys. Rev. B 60, 1167 (1999), doi: 10.1103/PhysRevB.60.1167
• [3] A. Orendáčová, M. Orendáč, V. Bondarenko, A. Feher, A.G. Anders, J. Phys.: Condens. Matter 10, 1125 (1998), doi: 10.1088/0953-8984/10/5/019
• [4] A.G. Anders, V.S. Bondarenko, A. Feher, A. Orendáčová, M. Orendáč, J. Magn. Magn. Mater. 187, 125 (1998), doi: 10.1016/S0304-8853(98)00113-9
• [5] A. Orendáčová, D. Horváth, M. Orendáč, E. Čižmáč, M. Kačmár, V. Bondarenko, A.G. Anders, A. Feher, Phys. Rev. B 65, 014420 (2001), doi: 10.1103/PhysRevB.65.014420
• [6] A.A. Loginov, Low. Temp. Phys. 28, 755 (2002), doi: 10.1063/1.1521295
• [7] S. Maťaš, E. Dudzik, R. Feyerherm, S. Gerischer, S. Klemke, K. Prokeš, A. Orendáčová, Phys. Rev. B 82, 184427 (2010), doi: 10.1103/PhysRevB.82.184427
• [8] D.M. Pajerowski, M.W. Meisel, J. Phys.: Conf. Ser. 150, 012034 (2009), doi: 10.1088/1742-6596/150/1/012034
• [9] V. Tkáč, A. Orendáčová, R. Tarasenko, E. Čižmár, M. Orendáč, K. Tibenská, A.G. Anders, S. Gao, V. Pavlík, A. Feher, J. Phys.: Condens. Matter 25, 506001 (2013), doi: 10.1088/0953-8984/25/50/506001
• [10] E.N. Khatsko, A.S. Cherny, K.I. Kaplienko, Fiz. Nizk. Temp. 19, 1217 (1993)

Identifiers

DOI

10.12693/APhysPolA.127.353