Mixed-State Microwave Response in Thin Superconducting YBa2Cu3O7-δ Films

被引：0

作者：

Kalenyuk, O. A. ^{[1
]}

Greben, K. A. ^{[1
]}

Vakalyuk, O. V. ^{[1
]}

Moskalyuk, V. O. ^{[1
]}

Flis, V. S. ^{[1
]}

Pan, V. M. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, GV Kurdyumov Inst Met Phys, UA-142 Kiev, Ukraine

来源：

METALLOFIZIKA I NOVEISHIE TEKHNOLOGII | 2010年 / 32卷 / 09期

关键词：

HIGH-TEMPERATURE SUPERCONDUCTORS; FREQUENCY VORTEX DYNAMICS; II SUPERCONDUCTORS; RESISTANCE; LINE; PENETRATION; DEPENDENCE; ANISOTROPY; VORTICES;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report measurements of magnetic-field-dependent microwave response in YBCO superconducting thin films deposited on both LaAlO3 and Al2O3 monocrystalline substrates. From experimental studies of surface impedance and reactance shift, we obtain the magnetic-field dependences of complex resistivity for parallel and normal magnetic-field orientations relating to film surface. As shown, the investigated pinning constant, k(p), viscosity coefficient, eta, and depinning frequency, omega(p), do not depend on magnetic field between 0.2 T and 1 T. This indicates an individual-pinning mode realization for quasi-monocrystalline films investigated. We also observe the k(p), eta, omega(p) anisotropy under different magnetic-field orientation relative to crystallographic c axis. Findings are well described with strongly-individual-pinning model. Pinning-constant anisotropy features indicate the high concentration of extensive linear defects (dislocations) along the c axis.

引用

页码：1141 / 1153

页数：13

共 31 条

[1]

[Anonymous], 1980, Introduction to Superconductivity

[2] ELASTIC BROADENING OF QUASI-PARTICLE ENERGY-LEVELS IN VORTEX CORES OF HIGH-T-C SUPERCONDUCTORS [J].

BERKOVITS, R ;

SHAPIRO, BY .

PHYSICAL REVIEW B, 1995, 51 (05) :3151-3155

[3]

BLATTER G, 1994, REV MOD PHYS, V66, P1147

[4]

BRANDT EH, 1992, PHYSICA C, V195, P1, DOI 10.1016/0921-4534(92)90068-N

[5] BOUND FERMION STATES ON A VORTEX LINE IN A TYPE-II SUPERCONDUCTOR [J].

CAROLI, C ;

DEGENNES, PG ;

MATRICON, J .

PHYSICS LETTERS, 1964, 9 (04) :307-309

[6] MAGNETOOPTICS OF TYPE-II SUPERCONDUCTORS [J].

CHOI, EJ ;

LIHN, HTS ;

DREW, HD ;

HSU, TC .

PHYSICAL REVIEW B, 1994, 49 (18) :13271-13274

[7] UNIFIED THEORY OF EFFECTS OF VORTEX PINNING AND FLUX CREEP UPON THE RF SURFACE IMPEDANCE OF TYPE-II SUPERCONDUCTORS [J].

COFFEY, MW ;

CLEM, JR .

PHYSICAL REVIEW LETTERS, 1991, 67 (03) :386-389

[8]

FEDOTOV YV, 2002, FIZ NIZK TEMP, V28, P245

[9]

FEIGELMAN MV, 1993, JETP LETT+, V57, P711

[10]

FLIS VS, 2006, ISPEKHI FIZIKI METAL, V7, P189

← 1 2 3 4 →