Pressure and Temperature Dependences of the Electronic Structure of CeIrSi3 Probed by Resonant X-ray Emission Spectroscopy

被引：8

作者：

Yamaoka, Hitoshi ^{[1
]}

Jarrige, Ignace ^{[2
]}

Tsujii, Naohito ^{[3
]}

Kotani, Akio ^{[1
,4
]}

Lin, Jung-Fu ^{[5
]}

Honda, Fuminori ^{[6
]}

Settai, Rikio ^{[6
]}

Onuki, Yoshichika ^{[6
]}

Hiraoka, Nozumu ^{[7
]}

Ishii, Hirofumi ^{[7
]}

Tsuei, Ku-Ding ^{[7
]}

机构：

[1] RIKEN, Harima Inst, Inst Phys & Chem Res, Sayo, Hyogo 6795148, Japan

[2] Japan Atom Energy Agcy, Sayo, Hyogo 6795148, Japan

[3] Natl Inst Mat Sci, Quantum Beam Ctr, Tsukuba, Ibaraki 3050047, Japan

[4] High Energy Accelerator Org, Photon Factory, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

[5] Univ Texas Austin, Dept Geol Sci, Austin, TX 78712 USA

[6] Osaka Univ, Fac Sci, Toyonaka, Osaka 5690043, Japan

[7] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2011年 / 80卷 / 12期

基金：

日本学术振兴会; 美国国家科学基金会;

关键词：

electronic structure; Ce; x-ray emission spectroscopy; superconductivity; high pressure; CORE-LEVEL SPECTROSCOPY; HEAVY-FERMION METALS; CRYSTAL-FIELD; SUPERCONDUCTIVITY; MODEL; CE; BEHAVIOR; YB;

D O I：

10.1143/JPSJ.80.124701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Pressure and temperature dependences of the electronic structure of the heavy-fermion superconductor CeIrSi3 have been investigated using partial fluorescence yield x-ray absorption spectroscopy and resonant x-ray emission spectroscopy at the Ce L-3 edge. Ce is in a weakly mixed valence state at ambient pressure, mostly f(1) with a small contribution from the f(0) component. Pressure-induced increase of the Ce valence becomes apparent above 4 GPa, concomitantly with the disappearance of the superconductivity. No temperature dependence of the Ce valence is observed within the measured temperature range down to 24 K.

引用

页数：7

共 53 条

[1] SCALES AND SCALING IN THE KONDO MODEL [J].

ANDREI, N ;

LOWENSTEIN, JH .

PHYSICAL REVIEW LETTERS, 1981, 46 (05) :356-360

[2] Heavy fermion superconductivity and magnetic order in noncentrosymmetric CePt3Si -: art. no. 027003 [J].

Bauer, E ;

Hilscher, G ;

Michor, H ;

Paul, C ;

Scheidt, EW ;

Gribanov, A ;

Seropegin, Y ;

Noël, H ;

Sigrist, M ;

Rogl, P .

PHYSICAL REVIEW LETTERS, 2004, 92 (02) :4

[3] Pressure dependence of the electrical resistivity of the filled skutterudites LnFe4Sb12 (Ln = Ce, Yb) [J].

Bauer, ED ;

Chau, R ;

Dilley, NR ;

Maple, MB ;

Mandrus, D ;

Sales, BC .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (07) :1261-1267

[4] SELF-CONSISTENT LARGE-N EXPANSION FOR NORMAL-STATE PROPERTIES OF DILUTE MAGNETIC-ALLOYS [J].

BICKERS, NE ;

COX, DL ;

WILKINS, JW .

PHYSICAL REVIEW B, 1987, 36 (04) :2036-2079

[5] CRYSTAL-FIELD ANISOTROPY IN YB HEAVY ELECTRON COMPOUNDS [J].

BONVILLE, P ;

HODGES, JA ;

IMBERT, P ;

JACCARD, D ;

SIERRO, J ;

BESNUS, MJ ;

MEYER, A .

PHYSICA B, 1990, 163 (1-3) :347-350

[6] HYBRIDIZATION AND CRYSTAL-FIELD IN YBPD2SI2 [J].

BONVILLE, P ;

HAMMANN, J ;

HODGES, JA ;

IMBERT, P ;

JEHANNO, G ;

BESNUS, MJ ;

MEYER, A .

PHYSICA B, 1991, 171 (1-4) :171-174

[7] Detaching the antiferromagnetic quantum critical point from the Fermi-surface reconstruction in YbRh2Si2 [J].

Friedemann, S. ;

Westerkamp, T. ;

Brando, M. ;

Oeschler, N. ;

Wirth, S. ;

Gegenwart, P. ;

Krellner, C. ;

Geibel, C. ;

Steglich, F. .

NATURE PHYSICS, 2009, 5 (07) :465-469

[8] Superconductivity without inversion symmetry:: MnSi versus CePt3Si -: art. no. 097001 [J].

Frigeri, PA ;

Agterberg, DF ;

Koga, A ;

Sigrist, M .

PHYSICAL REVIEW LETTERS, 2004, 92 (09) :097001-1

[9] Quantum criticality in heavy-fermion metals [J].

Gegenwart, Philipp ;

Si, Qimiao ;

Steglich, Frank .

NATURE PHYSICS, 2008, 4 (03) :186-197

[10] ELECTRON SPECTROSCOPIES FOR CE COMPOUNDS IN THE IMPURITY MODEL [J].

GUNNARSSON, O ;

SCHONHAMMER, K .

PHYSICAL REVIEW B, 1983, 28 (08) :4315-4341

← 1 2 3 4 5 6 →