Magnetic-Field-Induced Enhancements of Nuclear Spin-Lattice Relaxation Rates in the Heavy-Fermion Superconductor CeCoIn5 Using 59Co Nuclear Magnetic Resonance

被引：18

作者：

Sakai, H. ^{[1
,2
]}

Brown, S. E. ^{[1
,3
]}

Baek, S. -H. ^{[1
]}

Ronning, F. ^{[1
]}

Bauer, E. D. ^{[1
]}

Thompson, J. D. ^{[1
]}

机构：

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

[2] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[3] Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90024 USA

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 13期

基金：

美国国家科学基金会;

关键词：

FLUCTUATIONS; INSTABILITY; SYSTEMS;

D O I：

10.1103/PhysRevLett.107.137001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Co-59 nuclear spin-lattice relaxation has been measured for the heavy-fermion superconductor CeCoIn5 in a range of applied fields directed parallel to the c axis. An enhanced normal-state relaxation rate, observed at low temperatures and fields just above H-c2(0), is taken as a direct measure of the dynamical susceptibility and provides microscopic evidence for an antiferromagnetic instability. The results are well described using the self-consistent renormalized theory for two-dimensional antiferromagnetic spin fluctuations, and parameters obtained in the analysis are applied to previously reported specific heat and thermal expansion data with good agreement.

引用

页数：5

共 28 条

[1] Anisotropic three-dimensional magnetic fluctuations in heavy fermion CeRhIn5 -: art. no. 100505 [J].

Bao, W ;

Aeppli, G ;

Lynn, JW ;

Pagliuso, PG ;

Sarrao, JL ;

Hundley, MF ;

Thompson, JD ;

Fisk, Z .

PHYSICAL REVIEW B, 2002, 65 (10)

[2] Avoided antiferromagnetic order and quantum critical point in CeCoIn5 -: art. no. 257001 [J].

Bianchi, A ;

Movshovich, R ;

Vekhter, I ;

Pagliuso, PG ;

Sarrao, JL .

PHYSICAL REVIEW LETTERS, 2003, 91 (25)

[3] Possible Fulde-Ferrell-Larkin-Ovchinnikov superconducting state in CeCoIn5 -: art. no. 187004 [J].

Bianchi, A ;

Movshovich, R ;

Capan, C ;

Pagliuso, PG ;

Sarrao, JL .

PHYSICAL REVIEW LETTERS, 2003, 91 (18)

[4] Dimensional crossover of quantum critical behavior in CeCoIn5 [J].

Donath, J. G. ;

Steglich, F. ;

Bauer, E. D. ;

Sarrao, J. L. ;

Gegenwart, P. .

PHYSICAL REVIEW LETTERS, 2008, 100 (13)

[5] Behavior of the Quantum Critical Point and the Fermi-Liquid Domain in the Heavy Fermion Superconductor CeCoIn5 Studied by Resistivity [J].

Howald, Ludovic ;

Seyfarth, Gabriel ;

Knebel, Georg ;

Lapertot, Gerard ;

Aoki, Dai ;

Brison, Jean-Pascal .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2011, 80 (02)

[6] The effect of spin fluctuations on thermal properties in strongly correlated fermion systems [J].

Kambe, S ;

Flouquet, J ;

Hargreaves, TE .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1997, 108 (5-6) :383-405

[7] Thermal expansion and the Gruneisen parameter near the magnetic instability in Ce1-xLaxRu2Si2 [J].

Kambe, S ;

Flouquet, J ;

Lejay, P ;

Haen, P ;

deVisser, A .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (23) :4917-4924

[8]

Kawasaki Y, 2003, J PHYS SOC JPN, V72, P2308, DOI [10.1143/JPSJ.72.2308, 10.1143/JPSJ.72.72.2308]

[9] Coupled superconducting and magnetic order in CeCoIn5 [J].

Kenzelmann, M. ;

Straessle, Th. ;

Niedermayer, C. ;

Sigrist, M. ;

Padmanabhan, B. ;

Zolliker, M. ;

Bianchi, A. D. ;

Movshovich, R. ;

Bauer, E. D. ;

Sarrao, J. L. ;

Thompson, J. D. .

SCIENCE, 2008, 321 (5896) :1652-1654

[10] Antiferromagnetic spin fluctuation and superconductivity [J].

Moriya, T ;

Ueda, K .

REPORTS ON PROGRESS IN PHYSICS, 2003, 66 (08) :1299-1341

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