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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2002     Display Documents



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ID: 7486.0, MPI für Festkörperforschung / FKF Publikationen 2002
Magnetic and thermal properties of the two-level magnetic system, KTm(MoO4)2
Authors:Pashchenko, V. A.; Borisenko, V. G.; Khats'ko, E. N.; Cherny, A. S.; Paulsen, C.; Feher, A.; Orendac, M.; Orendacova, A.; Jansen, A. G. M.; Wyder, P.
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Journal of Physics: Condensed Matter
Volume:14
Issue / Number:41
Start Page:9693
End Page:9703
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:The magnetic susceptibility and specific heat of single
crystals of KTm(MoO4)2 in the temperature interval 0.1-300 K
are investigated. It is shown that the ground state of the
rare-earth magnetic system of the Tm3+ ions can be represented
by two close-lying singlet levels (a non-Kramers quasidoublet
with M-J = \ +/- 6>) separated by a rather large energy
interval from the excited levels. The effect of the ''freezing'
of energy levels on magnetic susceptibility and the Schottky
anomaly on magnetic specific heat have been observed in the
low-temperature region T < 2.5 K. These results show that this
magnetic system can be considered as a simple two-level quantum
system over a wide temperature range.
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:; Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
; Kharkov Air Force Inst, Dept Phys, UA-61064 Kharkov, Ukraine
; CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble, France
; Safarik Univ, Dept Expt Phys, Kosice 04154, Slovakia
; Max Planck Inst Festkorperforsch, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France
; CNRS, F-38042 Grenoble 9, France
Identifiers:ISI:000179214300027
ISSN:0953-8984
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