Thermodynamic and transport investigation of CeCoIn5-xSnx

被引：48
作者：
Bauer, E. D.
Ronning, F.
Capan, C.
Graf, M. J.
Vandervelde, D.
Yuan, H. Q.
Salamon, M. B.
Mixson, D. J.
Moreno, N. O.
Brown, S. R.
Thompson, J. D.
Movshovich, R.
Hundley, M. F.
Sarrao, J. L.
Pagliuso, P. G.
Kauzlarich, S. M.
机构：
[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[3] Univ Florida, Dept Phys, Gainesville, FL 32611 USA
[4] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA
[5] Cidade Univ, BR-13083970 Campinas, SP, Brazil
来源：
PHYSICAL REVIEW B | 2006年 / 73卷 / 24期
关键词：
D O I：
10.1103/PhysRevB.73.245109
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Measurements of specific heat, magnetic susceptibility, electrical resistivity, and penetration depth have been performed on CeCoIn5-xSnx (0 <= x <= 0.24) single crystals. The suppression of superconductivity and the decrease of the specific heat jump at T-c, Delta C/T-c, with increasing Sn concentration, and the power-law temperature dependence of penetration depth are consistent with impurity scattering calculated within the Abrikosov-Gorkov formalism indicating d-wave superconductivity in CeCoIn5-xSnx. The non-Fermi liquid behavior [C/T similar to-ln T and rho(T)similar to T] observed in the normal state in zero magnetic field is quite robust against Sn substitution (and a variety of other tuning parameters), suggesting quantum criticality involving itinerant f-electrons in this system.
引用
收藏
页数：9
相关论文
共 52 条
[1]   KNIGHT SHIFT IN SUPERCONDUCTORS [J].
ANDERSON, PW .
PHYSICAL REVIEW LETTERS, 1959, 3 (07) :325-326
[2]   Field-angle dependence of the zero-energy density of states in the unconventional heavy-fermion superconductor CeCoIn5 [J].
Aoki, H ;
Sakakibara, T ;
Shishido, H ;
Settai, R ;
Önuki, Y ;
Miranovic, P ;
Machida, K .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (03) :L13-L19
[3]   PENETRATION DEPTH FOR A 2D D-WAVE SUPERCONDUCTOR [J].
ARBERG, P ;
MANSOR, M ;
CARBOTTE, JP .
SOLID STATE COMMUNICATIONS, 1993, 86 (10) :671-673
[4]   Superconductivity in CeCoIn5-xSnx:: Veil over an ordered state or novel quantum critical point? -: art. no. 047001 [J].
Bauer, ED ;
Capan, C ;
Ronning, F ;
Movshovich, R ;
Thompson, JD ;
Sarrao, JL .
PHYSICAL REVIEW LETTERS, 2005, 94 (04)
[5]   Rapid suppression of superconductivity in CeCoIn5-xSnx [J].
Bauer, ED ;
Moreno, NO ;
Mixson, DJ ;
Sarrao, JL ;
Thompson, JD ;
Hundley, MF ;
Movshovich, R ;
Pagliuso, PG .
PHYSICA B-CONDENSED MATTER, 2005, 359 :35-37
[6]   Crystalline electric field excitations in the heavy fermion superconductor CeCoIn5 [J].
Bauer, ED ;
Christianson, AD ;
Lawrence, JM ;
Goremychkin, EA ;
Moreno, NO ;
Curro, NJ ;
Trouw, FR ;
Sarrao, JL ;
Thompson, JD ;
McQueeney, RJ ;
Bao, W ;
Osborn, R .
JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) :7201-7203
[7]   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)
[8]   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)
[9]   Nonlocality and strong coupling in the heavy fermion superconductor CeCoIn5:: A penetration depth study -: art. no. 014527 [J].
Chia, EEM ;
Van Harlingen, DJ ;
Salamon, MB ;
Yanoff, BD ;
Bonalde, I ;
Sarrao, JL .
PHYSICAL REVIEW B, 2003, 67 (01)
[10]   Probing the superconducting gap symmetry of PrOs4Sb12:: A penetration depth study -: art. no. 247003 [J].
Chia, EEM ;
Salamon, MB ;
Sugawara, H ;
Sato, H .
PHYSICAL REVIEW LETTERS, 2003, 91 (24)
123456