Electrical resistivity of heavy-fermion system of cubic YbCu5 under high pressures

Akihiro Mitsuda, Kiyonori Yamauchi, Naohito Tsujii, Kazuyoshi Yoshimura, Yosikazu Isikawa, Yuh Yamada

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Abstract Cubic YbCu5 with an AuBe5-type structure is one of the heaviest fermion systems in Yb- based compounds. In the Doniach diagram, its electronic state is in the vicinity of the quantum critical point. We examined the effects of pressure on the electrical resistivity p of cubic YbCu5. It is found that there exists no evidence of magnetic ordering up to 2.9 GPa. The T2 dependence of p at the lowest temperature, which corresponds to a Fermi liquid, is preserved up to 2.9 GPa. With increasing pressure, the T2 coefficient A increases, while the Kondo temperature Tκ decreases; this suggests that the electronic state approaches the quantum critical point.

Original languageEnglish
Pages (from-to)78-79
Number of pages2
Journaljournal of the physical society of japan
Volume76
Issue numberSUPPL. A
DOIs
Publication statusPublished - Jan 1 2007

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heavy fermion systems
critical point
electrical resistivity
Fermi liquids
electronics
diagrams
coefficients
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Electrical resistivity of heavy-fermion system of cubic YbCu5 under high pressures. / Mitsuda, Akihiro; Yamauchi, Kiyonori; Tsujii, Naohito; Yoshimura, Kazuyoshi; Isikawa, Yosikazu; Yamada, Yuh.

In: journal of the physical society of japan, Vol. 76, No. SUPPL. A, 01.01.2007, p. 78-79.

Research output: Contribution to journalArticle

Mitsuda, Akihiro ; Yamauchi, Kiyonori ; Tsujii, Naohito ; Yoshimura, Kazuyoshi ; Isikawa, Yosikazu ; Yamada, Yuh. / Electrical resistivity of heavy-fermion system of cubic YbCu5 under high pressures. In: journal of the physical society of japan. 2007 ; Vol. 76, No. SUPPL. A. pp. 78-79.
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