First-order superconducting phase transition in CeCoIn5 -: art. no. 137002

被引：230

作者：

Bianchi, A

Movshovich, R

Oeschler, N

Gegenwart, P

Steglich, F

Thompson, JD

Pagliuso, PG

Sarrao, JL

机构：

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

[2] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.89.137002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The superconducting phase transition in heavy fermion CeCoIn5 (T-c=2.3 K in zero field) becomes first order when the magnetic field Hparallel to[001] is greater than 4.7 T, and the transition temperature is below T(0)approximate to0.31T(c). The change from second order at lower fields is reflected in strong sharpening of both specific heat and thermal expansion anomalies associated with the phase transition, a strong magnetocaloric effect, and a steplike change in the sample volume. This effect is due to Pauli limiting in a type-II superconductor, and was predicted theoretically in the mid-1960s.

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页码：137002 / 137002

页数：4

相关论文

共 18 条

[11] PAULI PARAMAGNETISM + SUPERCONDUCTING STATE [J].

MAKI, K ;

TSUNETO, T .

PROGRESS OF THEORETICAL PHYSICS, 1964, 31 (06) :945-&

[12] EFFECT OF PAULI PARAMAGNETISM ON MAGNETIC PROPERTIES OF HIGH-FIELD SUPERCONDUCTORS [J].

MAKI, K .

PHYSICAL REVIEW, 1966, 148 (01) :362-+

[13] Unconventional superconductivity in CeIrIn5 and CeCoIn5:: Specific heat and thermal conductivity studies [J].

Movshovich, R ;

Jaime, M ;

Thompson, JD ;

Petrovic, C ;

Fisk, Z ;

Pagliuso, PG ;

Sarrao, JL .

PHYSICAL REVIEW LETTERS, 2001, 86 (22) :5152-5155

[14] Anomalous superconductivity and field-induced magnetism in CeCoIn5 -: art. no. 100514 [J].

Murphy, TP ;

Hall, D ;

Palm, EC ;

Tozer, SW ;

Petrovic, C ;

Fisk, Z ;

Goodrich, RG ;

Pagliuso, PG ;

Sarrao, JL ;

Thompson, JD .

PHYSICAL REVIEW B, 2002, 65 (10) :1-4

[15] EXISTENCE OF THE FFLO STATE IN SUPERCONDUCTING UPD2AL3 [J].

NORMAN, MR .

PHYSICAL REVIEW LETTERS, 1993, 71 (20) :3391-3391

[16] Heavy-fermion superconductivity in CeCoIn5 at 2.3 K [J].

Petrovic, C ;

Pagliuso, PG ;

Hundley, MF ;

Movshovich, R ;

Sarrao, JL ;

Thompson, JD ;

Fisk, Z ;

Monthoux, P .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (17) :L337-L342

[17] ON INFLUENCE OF A UNIFORM EXCHANGE FIELD ACTING ON SPINS OF CONDUCTION ELECTRONS IN A SUPERCONDUCTOR [J].

SARMA, G .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1963, 24 (08) :1029-+

[18] Field-history-dependent peak effect in the superconducting mixed state of CeRu2 [J].

Tenya, K ;

Yasunami, S ;

Tayama, T ;

Amitsuka, H ;

Sakakibara, T ;

Hedo, M ;

Inada, Y ;

Haga, Y ;

Yamamoto, E ;

Onuki, Y .

PHYSICA B-CONDENSED MATTER, 1999, 259-61 :692-693