HIGH-TC SUPERCONDUCTING FILM IN A TRANSVERSE AC MAGNETIC-FIELD - LOSSES AND EFFECT OF LOWER CRITICAL-FIELD

被引：2

作者：

ATSARKIN, VA

VASNEVA, GA

ZYBTSEV, SG

机构：

[1] Institute of Radioengineering and Electronics, Russian Academy of Sciences, Moscow, 103907, Mokhovaya

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1994年 / 7卷 / 06期

关键词：

D O I：

10.1088/0953-2048/7/6/015

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

AC losses as a function of the amplitude of the AC transverse magnetic field are measured on both poly- and monocrystalline YBa2Cu3O7-delta superconducting films. The data are consistent with the calculation based on the Bean critical state model adapted to a thin film perpendicular to a magnetic field. An influence of the 'lower critical field' H(c1)' (which first penetrates the sample) is observed on the monocrystalline films, the value of H(c1) being about 0.1 times the 'true' H(c1) as known for bulk crystals. The technique described provides a simple method of determining critical current density and penetration fields in high-T(c) films.

引用

页码：423 / 426

页数：4

共 12 条

[1]

Atsarkin V. A., 1992, Superconductivity: Physics, Chemistry, Technology, V5, P417

[2] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS [J].

BEAN, CP .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :31-+

[3] CALCULATIONS OF THE DIMENSIONAL DEPENDENCE OF THE CRITICAL STATE IN DISK-SHAPED SUPERCONDUCTORS [J].

CONNER, LW ;

MALOZEMOFF, AP .

PHYSICAL REVIEW B, 1991, 43 (01) :402-407

[4] CRITICAL STATE IN DISK-SHAPED SUPERCONDUCTORS [J].

DAUMLING, M ;

LARBALESTIER, DC .

PHYSICAL REVIEW B, 1989, 40 (13) :9350-9353

[5] STUDIES OF HTSC CRYSTAL MAGNETIZATION FEATURES USING INDICATOR MAGNETOOPTIC FILMS WITH INPLANE ANISOTROPY [J].

DOROSINSKII, LA ;

INDENBOM, MV ;

NIKITENKO, VI ;

OSSIPYAN, YA ;

POLYANSKII, AA ;

VLASKOVLASOV, VK .

PHYSICA C, 1992, 203 (1-2) :149-156

[6] TEMPERATURE-DEPENDENCE OF LOWER CRITICAL FIELDS IN Y-BA-CU-O CRYSTALS [J].

KRUSINELBAUM, L ;

MALOZEMOFF, AP ;

YESHURUN, Y ;

CRONEMEYER, DC ;

HOLTZBERG, F .

PHYSICAL REVIEW B, 1989, 39 (04) :2936-2939

[7] CRITICAL FIELDS AND CRITICAL CURRENTS OF SUPERCONDUCTING DISKS IN TRANSVERSE MAGNETIC-FIELDS [J].

KUNCHUR, MN ;

POON, SJ .

PHYSICAL REVIEW B, 1991, 43 (04) :2916-2921

[8] AC SUSCEPTIBILITY RESPONSE OF THIN-FILM SUPERCONDUCTORS NEAR TC - A THEORETICAL-STUDY [J].

SUN, JZ ;

SCHAREN, MJ ;

BOURNE, LC ;

SCHRIEFFER, JR .

PHYSICAL REVIEW B, 1991, 44 (10) :5275-5279

[9] SUPERCONDUCTING CURRENT-DENSITY PROFILES ESTIMATED FROM THE FLUX-DENSITY DISTRIBUTION IN YBA2CU3OX THIN-FILMS [J].

YOKOYAMA, Y ;

SUZUKI, Y ;

HASUMI, Y ;

OBARA, H ;

YOSIMI, T ;

KITA, Y ;

KOSAKA, S ;

YOSHIDA, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1991, 30 (11A) :L1864-L1867

[10]

ZHUKOV AA, 1991, ZH EKSP TEOR FIZ+, V100, P605

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