Magnetic quantum critical point and dimensionality trend in cerium-based heavy-fermion compounds

Munehisa Matsumoto; Myung Joon Han; Junya Otsuki; Sergey Yu Savrasov

doi:10.1103/PhysRevB.82.180515

Magnetic quantum critical point and dimensionality trend in cerium-based heavy-fermion compounds

Munehisa Matsumoto, Myung Joon Han, Junya Otsuki, Sergey Yu Savrasov

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We present realistic Kondo-lattice simulation results for the recently discovered heavy-fermion antiferromagnet CePt₂ In₇ comparing with its three-dimensional counterpart CeIn₃ and the less two-dimensional ones, Ce-115's. We find that the distance to the magnetic quantum critical point is the largest for CeIn₃ and the smallest for Ce-115's, and CePt₂ In₇ falls in between. We argue that the trend in quasi-two-dimensional materials stems from the frequency dependence of the hybridization between cerium 4f electrons and the conduction bands.

Original language	English
Article number	180515
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.82.180515
Publication status	Published - Nov 19 2010
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "We present realistic Kondo-lattice simulation results for the recently discovered heavy-fermion antiferromagnet CePt2 In7 comparing with its three-dimensional counterpart CeIn3 and the less two-dimensional ones, Ce-115's. We find that the distance to the magnetic quantum critical point is the largest for CeIn3 and the smallest for Ce-115's, and CePt2 In7 falls in between. We argue that the trend in quasi-two-dimensional materials stems from the frequency dependence of the hybridization between cerium 4f electrons and the conduction bands.",

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AU - Otsuki, Junya

AU - Savrasov, Sergey Yu

PY - 2010/11/19

Y1 - 2010/11/19

N2 - We present realistic Kondo-lattice simulation results for the recently discovered heavy-fermion antiferromagnet CePt2 In7 comparing with its three-dimensional counterpart CeIn3 and the less two-dimensional ones, Ce-115's. We find that the distance to the magnetic quantum critical point is the largest for CeIn3 and the smallest for Ce-115's, and CePt2 In7 falls in between. We argue that the trend in quasi-two-dimensional materials stems from the frequency dependence of the hybridization between cerium 4f electrons and the conduction bands.

AB - We present realistic Kondo-lattice simulation results for the recently discovered heavy-fermion antiferromagnet CePt2 In7 comparing with its three-dimensional counterpart CeIn3 and the less two-dimensional ones, Ce-115's. We find that the distance to the magnetic quantum critical point is the largest for CeIn3 and the smallest for Ce-115's, and CePt2 In7 falls in between. We argue that the trend in quasi-two-dimensional materials stems from the frequency dependence of the hybridization between cerium 4f electrons and the conduction bands.

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Magnetic quantum critical point and dimensionality trend in cerium-based heavy-fermion compounds

Abstract

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