Influence of the confinement geometry on surface superconductivity

被引:88
作者
Schweigert, VA [1 ]
Peeters, FM [1 ]
机构
[1] Univ Instelling Antwerp, Dept Nat Kunde, B-2610 Wilrijk, Belgium
来源
PHYSICAL REVIEW B | 1999年 / 60卷 / 05期
关键词
D O I
10.1103/PhysRevB.60.3084
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The nucleation field for surface superconductivity H-c3 depends on the geometrical shape of the mesoscopic superconducting sample and is substantially enhanced with decreasing sample size. As an example we studied circular, square, triangular, and wedge shaped disks. For the wedge the nucleation field diverges as H-c3/H-c2 = root 3/alpha with decreasing angle (alpha) of the wedge, where H-c2 is the bulk upper critical field. [S0163-1829(99)03129-X].
引用
收藏
页码:3084 / 3087
页数:4
相关论文
共 18 条
[1]   Critical fields of mesoscopic superconductors [J].
Benoist, R ;
Zwerger, W .
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1997, 103 (3-4) :377-381
[2]   MAGNETIZATION OSCILLATIONS OF A SUPERCONDUCTING DISK [J].
BUISSON, O ;
GANDIT, P ;
RAMMAL, R ;
WANG, YY ;
PANNETIER, B .
PHYSICS LETTERS A, 1990, 150 (01) :36-42
[3]  
de Gennes P. G., 1989, SUPERCONDUCTIVITY ME
[4]   Magnetization of mesoscopic superconducting disks [J].
Deo, PS ;
Schweigert, VA ;
Peeters, FM ;
Geim, AK .
PHYSICAL REVIEW LETTERS, 1997, 79 (23) :4653-4656
[5]   Surface superconductivity in a wedge [J].
Fomin, VM ;
Devreese, JT ;
Moshchalkov, VV .
EUROPHYSICS LETTERS, 1998, 42 (05) :553-558
[6]   Surface superconductivity in a wedge (vol 42, pg 553, 1998) [J].
Fomin, VM ;
Devreese, JT ;
Moshchalkov, VV .
EUROPHYSICS LETTERS, 1999, 46 (01) :118-119
[7]   Superconducting mesoscopic square loop [J].
Fomin, VM ;
Misko, VR ;
Devreese, JT ;
Moshchalkov, VV .
PHYSICAL REVIEW B, 1998, 58 (17) :11703-11715
[8]   Phase transitions in individual sub-micrometre superconductors [J].
Geim, AK ;
Grigorieva, IV ;
Dubonos, SV ;
Lok, JGS ;
Maan, JC ;
Filippov, AE ;
Peeters, FM .
NATURE, 1997, 390 (6657) :259-262
[9]   Phase transition curves for mesoscopic superconducting samples [J].
Jadallah, HT ;
Rubinstein, J ;
Sternberg, P .
PHYSICAL REVIEW LETTERS, 1999, 82 (14) :2935-2938
[10]   COMPUTER-SIMULATIONS OF DYNAMICS OF FLUX LINES IN TYPE-II SUPERCONDUCTORS [J].
KATO, R ;
ENOMOTO, Y ;
MAEKAWA, S .
PHYSICAL REVIEW B, 1991, 44 (13) :6916-6920