Possible Low-Temperature Strongly Correlated Electron Behavior from Multipole Fluctuations in PrMg3 with Cubic Non-Kramers Γ3 Doublet Ground State
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- Tanida Hiroshi
- Physics Department, Graduate School of Science, Tohoku University
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- Suzuki Hiroyuki S.
- National Institute for Materials Science
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- Takagi Shigeru
- Physics Department, Graduate School of Science, Tohoku University
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- Onodera Hideya
- Physics Department, Graduate School of Science, Tohoku University
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- Tanigaki Katsumi
- Physics Department, Graduate School of Science, Tohoku University
Bibliographic Information
- Other Title
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- Possible Low-Temperature Strongly Correlated Electron Behavior from Multipole Fluctuations in PrMg3 with Cubic Non-Kramers √3 Doublet Ground State
- Possible Low Temperature Strongly Correlated Electron Behavior from Multipole Fluctuations in PrMg3 with Cubic Non Kramers 3 Doublet Ground State
- Possible Low-Temperature Strongly Correlated Electron Behavior from Multipole Fluctuations in PrMg<sub>3</sub> with Cubic Non-Kramers Γ<sub>3</sub> Doublet Ground State
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Abstract
The magnetic and thermodynamic properties of PrMg3 single crystals were investigated based on the magnetic susceptibility χ(T) and the specific heat CP(T). An observed broad anomaly in CP(T) with a peak ∼1.8 J/(mol K) at 0.9 K, together with Van-Vleck-like behavior of χ(T), indicates that the low-T properties are ascribed to the multipole (quadrupole O20 and O22, and octupole Txyz) degrees of freedom of a nonmagnetic, non-Kramers Γ3 doublet ground state in the cubic crystalline electric field of Pr3+. The low-T CP(T) anomaly, however, is not described in terms of the two-channel Kondo model, but is more similar to that for the single-channel Kondo model with the Kondo temperature TK=1.3 K, including its weak external-field dependence. No evidence for a cooperative phase transition was detected down to 0.54 K in CP(T), suggesting that the Γ3 multipole degrees of freedom are quenched at low T by forming a strongly correlated electronic state through the hybridization with conduction electrons.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 75 (7), 073705-, 2006
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679166226560
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- NII Article ID
- 110004777965
- 210000106218
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- NII Book ID
- AA00704814
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- BIBCODE
- 2006JPSJ...75g3705T
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 7973722
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed