Crystal-field and Kondo-scale investigations of CeMIn5 (M=Co, Ir, and Rh): A combined x-ray absorption and inelastic neutron scattering study

被引：74

作者：

Willers, T. ^{[1
]}

Hu, Z. ^{[1
,2
]}

Hollmann, N. ^{[1
]}

Koerner, P. O. ^{[1
]}

Gegner, J. ^{[1
]}

Burnus, T. ^{[1
]}

Fujiwara, H. ^{[1
]}

Tanaka, A. ^{[3
]}

Schmitz, D. ^{[4
]}

Hsieh, H. H. ^{[5
]}

Lin, H. -J. ^{[6
]}

Chen, C. T. ^{[6
]}

Bauer, E. D. ^{[7
]}

Sarrao, J. L. ^{[7
]}

Goremychkin, E. ^{[8
]}

Koza, M. ^{[9
]}

Tjeng, L. H. ^{[1
,2
]}

Severing, A. ^{[1
]}

机构：

[1] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[2] Max Planck Inst CPfS, D-01187 Dresden, Germany

[3] ADSM Hiroshima Univ, Dept Quantum Matter, Higashihiroshima 7398530, Japan

[4] BESSY II, Helmholtz Zentrum Berlin, D-12489 Berlin, Germany

[5] Natl Def Univ, Chung Cheng Inst Technol, Tao Yuan 335, Taiwan

[6] NSRRC, Hsinchu 30077, Taiwan

[7] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[8] Rutherford Appleton Lab, ISIS, Didcot OX11 0QX, Oxon, England

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

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 19期

关键词：

MAGNETIC EXCITATIONS; SUPERCONDUCTIVITY; CEPD2SI2; CEAU2SI2; CERHIN5; CEIRIN5; SPIN;

D O I：

10.1103/PhysRevB.81.195114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Linear-polarized soft-x-ray absorption (XAS) and inelastic neutron scattering (INS) experiments have been performed on CeMIn5 with M=Rh, Ir, and Co to determine the crystal-field scheme and characteristic Kondo temperatures T* for the hybridization between 4f and conduction electrons. The ground-state wave functions are determined from the polarization-dependent soft-XAS data at the cerium M-4,M-5 edge and the crystal-field splittings from INS. The characteristic temperature T* has been determined from the line widths of the neutron scattering data. We find that the quasielastic linewidths of the superconducting compounds CeCoIn5 and CeIrIn5 are comparable with the low-energy crystal-field splitting.

引用

页数：10

共 9 条

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