Excitation spectrum of PrOs4Sb12 under a magnetic field

被引：2

作者：

Raymond, S. ^{[1
]}

Kuwahara, K. ^{[2
]}

Kaneko, K. ^{[3
]}

Iwasa, K. ^{[4
]}

Kohgi, M. ^{[5
]}

Hiess, A. ^{[6
]}

Flouquet, J. ^{[1
]}

Metoki, N. ^{[3
]}

Sugawara, H. ^{[7
]}

Aoki, Y. ^{[5
]}

Sato, H. ^{[5
]}

机构：

[1] SPSMS, INAC, CEA DSM, F-38054 Grenoble, France

[2] Ibaraki Univ, Inst Appl Beam Sci, Mito, Ibaraki 3108512, Japan

[3] Japan Atom Energy Agcy, ASRC, Ibaraki 3191195, Japan

[4] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[5] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan

[6] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[7] Univ Tokushima, Fac Integrated Arts & Sci, Tokushima 7708502, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 21期

关键词：

FILLED-SKUTTERUDITE COMPOUNDS; SUPERCONDUCTIVITY;

D O I：

10.1088/0953-8984/21/21/215702

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The evolution of the magnetic excitation spectrum of the heavy fermion superconductor PrOs4Sb12 was studied by inelastic neutron scattering on crossing the critical field H-c2 for superconductivity at low temperature. The peak positions in energy and the peak intensities of the modes of the triplet split by magnetic field confirm the known crystal field parameters for PrOs4Sb12 in T-h symmetry. A selective broadening of the lineshape occurs on increasing the magnetic field: the linewidth of the upper mode of the triplet increases while the one of the middle mode does not.

引用

页数：5

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