Effect of pinning and thermal fluctuations on the superconducting transition of YBa2Cu3O7 very thin films

被引：2

作者：

Calame, M ^{[1
]}

Leemann, C ^{[1
]}

Stahel, LB ^{[1
]}

Martinoli, P ^{[1
]}

机构：

[1] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland

来源：

SUPERCONDUCTING AND RELATED OXIDES: PHYSICS AND NANOENGINEERING III | 1998年 / 3481卷

关键词：

thin films; Kosterlitz-Thouless transition; fluctuations; pinning; vortices;

D O I：

10.1117/12.335884

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The complex ac sheet impedance of c-axis oriented YBa(2)Cu(3)O(7) thin films was measured as a function of temperature in the frequency range 10(2)Hz - 10(5)Hz for film thicknesses varying between 24 Angstrom and 1100 Angstrom. We present the measurements on the thinnest films and examine their consistency with the predictions from various models for the superconducting transition, in particular the Kosterlitz-Thouless (KT) theory for the vortex-antivortex unbinding phase transition.

引用

页码：241 / 247

页数：7

共 23 条

[1] DYNAMICS OF SUPERFLUID FILMS [J].

AMBEGAOKAR, V ;

HALPERIN, BI ;

NELSON, DR ;

SIGGIA, ED .

PHYSICAL REVIEW B, 1980, 21 (05) :1806-1826

[2] POSSIBILITY OF VORTEX-ANTIVORTEX PAIR DISSOCIATION IN 2-DIMENSIONAL SUPERCONDUCTORS [J].

BEASLEY, MR ;

MOOIJ, JE ;

ORLANDO, TP .

PHYSICAL REVIEW LETTERS, 1979, 42 (17) :1165-1168

[3] Frequency dependence of the AC-sheet conductivity in thin YBa2Cu3O7-delta films [J].

Bjornander, M ;

Magnusson, J ;

Svedlindh, P ;

Nordblad, P ;

Norton, DP ;

Wellhofer, F .

PHYSICA C, 1996, 272 (3-4) :326-334

[4] VORTICES IN HIGH-TEMPERATURE SUPERCONDUCTORS [J].

BLATTER, G ;

FEIGELMAN, MV ;

GESHKENBEIN, VB ;

LARKIN, AI ;

VINOKUR, VM .

REVIEWS OF MODERN PHYSICS, 1994, 66 (04) :1125-1388

[5]

BULAEVSKII LN, 1988, ZH EKSP TEOR FIZ, V68, P1499

[6] Vortex dynamics and pinning in YBa2Cu3O7-delta films [J].

Calame, M ;

Stahel, LB ;

Leemann, C ;

Martinoli, P .

CZECHOSLOVAK JOURNAL OF PHYSICS, 1996, 46 :1619-1620

[7] RENORMALIZATION OF THE MEAN-FIELD SUPERCONDUCTING PENETRATION DEPTH IN EPITAXIAL YBA2CU3O7 FILMS [J].

FIORY, AT ;

HEBARD, AF ;

MANKIEWICH, PM ;

HOWARD, RE .

PHYSICAL REVIEW LETTERS, 1988, 61 (12) :1419-1422

[8] PENETRATION DEPTHS OF HIGH-TC FILMS MEASURED BY 2-COIL MUTUAL INDUCTANCES [J].

FIORY, AT ;

HEBARD, AF ;

MANKIEWICH, PM ;

HOWARD, RE .

APPLIED PHYSICS LETTERS, 1988, 52 (25) :2165-2167

[9] RESISTIVE TRANSITION IN SUPERCONDUCTING FILMS [J].

HALPERIN, BI ;

NELSON, DR .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1979, 36 (5-6) :599-616

[10] INDUCTIVE CONDUCTANCE MEASUREMENTS IN TWO-DIMENSIONAL SUPERCONDUCTING SYSTEMS [J].

JEANNERET, B ;

GAVILANO, JL ;

RACINE, GA ;

LEEMANN, C ;

MARTINOLI, P .

APPLIED PHYSICS LETTERS, 1989, 55 (22) :2336-2338

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