Heavy-fermion superconductivity in CeCoIn5 at 2.3 K

被引:932
作者
Petrovic, C [1 ]
Pagliuso, PG
Hundley, MF
Movshovich, R
Sarrao, JL
Thompson, JD
Fisk, Z
Monthoux, P
机构
[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA
[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[3] Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England
关键词
D O I
10.1088/0953-8984/13/17/103
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We report the observation of heavy-fermion superconductivity in CeCoIn5 at T-c = 2.3 K. When compared to the pressure-induced T-c of its cubic relative CeIn3 (T-c similar to 200 mK), the T-c of CeCoIn5 is remarkably high. We suggest that this difference may arise from magnetically mediated superconductivity in the layered crystal structure of CeCoIn5.
引用
收藏
页码:L337 / L342
页数:6
相关论文
共 23 条
[1]   Sources of quantum protection in high-Tc superconductivity [J].
Anderson, PW .
SCIENCE, 2000, 288 (5465) :480-482
[2]   Anisotropic electronic and magnetic properties of the quasi-two-dimensional heavy-fermion antiferromagnet CeRhIn5 [J].
Cornelius, AL ;
Arko, AJ ;
Sarrao, JL ;
Hundley, MF ;
Fisk, Z .
PHYSICAL REVIEW B, 2000, 62 (21) :14181-14185
[3]   Evidence for spiral magnetic order in the heavy fermion material CeRhIn5 [J].
Curro, NJ ;
Hammel, PC ;
Pagliuso, PG ;
Sarrao, JL ;
Thompson, JD ;
Fisk, Z .
PHYSICAL REVIEW B, 2000, 62 (10) :R6100-R6103
[4]   HEAVY-ELECTRON METALS - NEW HIGHLY CORRELATED STATES OF MATTER [J].
FISK, Z ;
HESS, DW ;
PETHICK, CJ ;
PINES, D ;
SMITH, JL ;
THOMPSON, JD ;
WILLIS, JO .
SCIENCE, 1988, 239 (4835) :33-42
[5]   Breakup of heavy fermions on the brink of "phase A" in CeCu2Si2 [J].
Gegenwart, P ;
Langhammer, C ;
Geibel, C ;
Helfrich, R ;
Lang, M ;
Sparn, G ;
Steglich, F ;
Horn, R ;
Donnevert, L ;
Link, A ;
Assmus, W .
PHYSICAL REVIEW LETTERS, 1998, 81 (07) :1501-1504
[6]  
Grin' Yu. N., 1979, Soviet Physics - Crystallography, V24, P137
[7]  
HALL D, 2001, CONDMAT0102533
[8]  
Heffner R. H., 1996, Comments on Condensed Matter Physics, V17, P361
[9]   Pressure-induced superconductivity in quasi-2D CeRhIn5 [J].
Hegger, H ;
Petrovic, C ;
Moshopoulou, EG ;
Hundley, MF ;
Sarrao, JL ;
Fisk, Z ;
Thompson, JD .
PHYSICAL REVIEW LETTERS, 2000, 84 (21) :4986-4989
[10]  
KALYCHAK YM, 1989, RUSS METALL+, P213