Low temperature magnetization of PrOs4 Sb12 under pressure

T. Tayama; T. Sakakibara; H. Sugawara; H. Sato

doi:10.1016/j.jmmm.2006.10.042

Low temperature magnetization of PrOs₄ Sb₁₂ under pressure

T. Tayama^*, T. Sakakibara, H. Sugawara, H. Sato

^*Corresponding author for this work

Department of Physics

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

1 Scopus citations

Abstract

We present dc magnetization data for the heavy fermion superconductor PrOs₄ Sb₁₂ under pressures up to 1.45 GPa. With increasing pressure, the superconducting region becomes smaller, while the antiferroquadrupolar region moves significantly to lower fields. Our results strongly suggest that the crystal field energy splitting of a Γ₁ singlet ground state and a Γ₄⁽²⁾ triplet first excited state decreases with an increase in pressure.

Original language	English
Pages (from-to)	274-276
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.042
State	Published - 2007/03

Keywords

Heavy-fermion superconductor
Magnetization
Pressure effect
Skutterudite

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2006.10.042

Cite this

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title = "Low temperature magnetization of PrOs4 Sb12 under pressure",

abstract = "We present dc magnetization data for the heavy fermion superconductor PrOs4 Sb12 under pressures up to 1.45 GPa. With increasing pressure, the superconducting region becomes smaller, while the antiferroquadrupolar region moves significantly to lower fields. Our results strongly suggest that the crystal field energy splitting of a Γ1 singlet ground state and a Γ4(2) triplet first excited state decreases with an increase in pressure.",

keywords = "Heavy-fermion superconductor, Magnetization, Pressure effect, Skutterudite",

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AU - Tayama, T.

AU - Sakakibara, T.

AU - Sugawara, H.

AU - Sato, H.

PY - 2007/3

Y1 - 2007/3

N2 - We present dc magnetization data for the heavy fermion superconductor PrOs4 Sb12 under pressures up to 1.45 GPa. With increasing pressure, the superconducting region becomes smaller, while the antiferroquadrupolar region moves significantly to lower fields. Our results strongly suggest that the crystal field energy splitting of a Γ1 singlet ground state and a Γ4(2) triplet first excited state decreases with an increase in pressure.

AB - We present dc magnetization data for the heavy fermion superconductor PrOs4 Sb12 under pressures up to 1.45 GPa. With increasing pressure, the superconducting region becomes smaller, while the antiferroquadrupolar region moves significantly to lower fields. Our results strongly suggest that the crystal field energy splitting of a Γ1 singlet ground state and a Γ4(2) triplet first excited state decreases with an increase in pressure.

KW - Heavy-fermion superconductor

KW - Magnetization

KW - Pressure effect

KW - Skutterudite

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DO - 10.1016/j.jmmm.2006.10.042

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