YbRh2Si2: Quantum tricritical behavior in itinerant electron systems

Takahiro Misawa, Youhei Yamaji, Masatoshi Imada

研究成果: Article査読

26 被引用数 (Scopus)

抄録

We propose that the proximity of the first-order transition manifested by the quantum tricritical point (QTCP) explains non-Fermi-liquid properties of YbRh2Si2. Here, at the QTCP, a continuous phase transition changes into first order at zero temperature. The non-Fermi-liquid behaviors of YbRh2Si2 are veiled in several prominent mysteries; diverging ferromagnetic susceptibility at the antiferromagnetic transition and enhancement of magnetization as well as specific heat. These puzzles are solved by an unconventional criticality derived from our spin fluctuation theory for the QTCP; especially, diverging ferromagnetic susceptibility is quantitatively reproduced.

本文言語English
論文番号093712
ジャーナルjournal of the physical society of japan
77
9
DOI
出版ステータスPublished - 2008 9 1
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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