Anomalous proximity effect in an inhomogeneous disordered superconductor -: art. no. 217005

被引:39
作者
Escoffier, W [1 ]
Chapelier, C [1 ]
Hadacek, N [1 ]
Villégier, JC [1 ]
机构
[1] CEA GRenoble, DSM, DRFMC, SPSMS, F-38054 Grenoble 9, France
关键词
D O I
10.1103/PhysRevLett.93.217005
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
By combining very low temperature scanning tunneling microscopy and spectroscopy on a TiN film we have observed a nonuniform state comprising of superconducting (S) and normal (N) areas. The local density of states displays a spatial dependence between S and N different from the usual proximity effect. We conclude that mesoscopic fluctuations might play a major role in accordance with recent theories describing superconductor-normal-metal quantum transition.
引用
收藏
页码:217005 / 1
页数:4
相关论文
共 48 条
[1]   EFFECT OF CHARGING ENERGY ON SUPERCONDUCTIVITY IN GRANULAR METAL-FILMS [J].
ABELES, B .
PHYSICAL REVIEW B, 1977, 15 (05) :2828-2829
[2]   Field theory of mesoscopic fluctuations in superconductor-normal-metal systems [J].
Altland, A ;
Simons, BD ;
Taras-Semchuk, D .
ADVANCES IN PHYSICS, 2000, 49 (03) :321-394
[3]   Local density of states in a dirty normal metal connected to a superconductor [J].
Belzig, W ;
Bruder, C ;
Schon, G .
PHYSICAL REVIEW B, 1996, 54 (13) :9443-9448
[4]   Quasiclassical Green's function approach to mesoscopic superconductivity [J].
Belzig, W ;
Wilhelm, FK ;
Bruder, C ;
Schön, G ;
Zaikin, AD .
SUPERLATTICES AND MICROSTRUCTURES, 1999, 25 (5-6) :1251-1288
[5]  
Bulaevskii L. N., 1987, Soviet Physics - JETP, V65, P380
[6]   Observation of critical amplitude fluctuations near the two-dimensional superconductor-insulator transition [J].
Chervenak, JA ;
Valles, JM .
PHYSICAL REVIEW B, 1999, 59 (17) :11209-11212
[7]   Interaction-induced Bose metal in two dimensions [J].
Dalidovich, D ;
Phillips, P .
PHYSICAL REVIEW B, 2001, 64 (05) :0525071-0525074
[8]   Existence of a Bose metal at T=0 [J].
Das, D ;
Doniach, S .
PHYSICAL REVIEW B, 1999, 60 (02) :1261-1275
[9]  
de Gennes P G., 1966, Superconductivity of Metals and Alloys
[10]   DIRECT MEASUREMENT OF QUASIPARTICLE-LIFETIME BROADENING IN A STRONG-COUPLED SUPERCONDUCTOR [J].
DYNES, RC ;
NARAYANAMURTI, V ;
GARNO, JP .
PHYSICAL REVIEW LETTERS, 1978, 41 (21) :1509-1512