Heavy fermion behavior in electrical resistivity of Pr(Os1 - x Rux)4 Sb12

A. Ochiai; H. Akita; G. Yoshino; S. Nakamura; T. Nojima

doi:10.1016/j.jmmm.2006.10.036

Heavy fermion behavior in electrical resistivity of Pr(Os_{1 - x} Ru_x)₄ Sb₁₂

A. Ochiai, H. Akita, G. Yoshino, S. Nakamura, T. Nojima

IMR - Institute for Materials Research (institute affiliation only)

Tohoku University

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

2 Citations (Scopus)

Abstract

We have measured the electrical resistivity of Pr(Os_{1 - x} Ru_x)₄ Sb₁₂, mixed crystal of the unconventional superconductor PrOs₄ Sb₁₂ and BCS-type superconductor PrRu₄ Sb₁₂, and determined the coefficients of the T²-term (A-value) in the normal states. The A-value obtained decreases with increasing x in the range of 0 < x < 0.6 and becomes constant when x > 0.6. This suggests that the mass enhancement takes place in the vicinity of x = 0.6 as well as the unconventional superconductivity.

Original language	English
Pages (from-to)	258-259
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.036
Publication status	Published - 2007 Mar

Keywords

Electrical resistivity
Heavy fermion
Pr(Os Ru) Sb

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10.1016/j.jmmm.2006.10.036

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title = "Heavy fermion behavior in electrical resistivity of Pr(Os1 - x Rux)4 Sb12",

abstract = "We have measured the electrical resistivity of Pr(Os1 - x Rux)4 Sb12, mixed crystal of the unconventional superconductor PrOs4 Sb12 and BCS-type superconductor PrRu4 Sb12, and determined the coefficients of the T2-term (A-value) in the normal states. The A-value obtained decreases with increasing x in the range of 0 < x < 0.6 and becomes constant when x > 0.6. This suggests that the mass enhancement takes place in the vicinity of x = 0.6 as well as the unconventional superconductivity.",

keywords = "Electrical resistivity, Heavy fermion, Pr(Os Ru) Sb",

author = "A. Ochiai and H. Akita and G. Yoshino and S. Nakamura and T. Nojima",

note = "Funding Information: This work was partially supported by a Grant-in-Aid for Scientific Research and a 21st Century COE Program of the Ministry of Education, Culture, Sports, Science and Technology.",

year = "2007",

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T1 - Heavy fermion behavior in electrical resistivity of Pr(Os1 - x Rux)4 Sb12

AU - Ochiai, A.

AU - Akita, H.

AU - Yoshino, G.

AU - Nakamura, S.

AU - Nojima, T.

N1 - Funding Information: This work was partially supported by a Grant-in-Aid for Scientific Research and a 21st Century COE Program of the Ministry of Education, Culture, Sports, Science and Technology.

PY - 2007/3

Y1 - 2007/3

N2 - We have measured the electrical resistivity of Pr(Os1 - x Rux)4 Sb12, mixed crystal of the unconventional superconductor PrOs4 Sb12 and BCS-type superconductor PrRu4 Sb12, and determined the coefficients of the T2-term (A-value) in the normal states. The A-value obtained decreases with increasing x in the range of 0 < x < 0.6 and becomes constant when x > 0.6. This suggests that the mass enhancement takes place in the vicinity of x = 0.6 as well as the unconventional superconductivity.

AB - We have measured the electrical resistivity of Pr(Os1 - x Rux)4 Sb12, mixed crystal of the unconventional superconductor PrOs4 Sb12 and BCS-type superconductor PrRu4 Sb12, and determined the coefficients of the T2-term (A-value) in the normal states. The A-value obtained decreases with increasing x in the range of 0 < x < 0.6 and becomes constant when x > 0.6. This suggests that the mass enhancement takes place in the vicinity of x = 0.6 as well as the unconventional superconductivity.

KW - Electrical resistivity

KW - Heavy fermion

KW - Pr(Os Ru) Sb

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VL - 310

SP - 258

EP - 259

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 1

ER -

Heavy fermion behavior in electrical resistivity of Pr(Os_{1 - x} Ru_x)₄ Sb₁₂

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Keywords

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