Flux turbulence in NdBa2Cu3O6+x and underdoped YBa2Cu3O6+x single crystals

被引：34

作者：

Frello, T ^{[1
]}

Baziljevich, M

Johansen, TH

Andersen, NH

Wolf, T

Koblischka, MR

机构：

[1] Riso Natl Lab, Condensed Matter Phys & Chem Dept, DK-4000 Roskilde, Denmark

[2] Univ Oslo, Dept Phys, N-0316 Oslo, Norway

[3] Forschungszentrum Karlsruhe, Inst Tech Phys, D-76021 Karlsruhe, Germany

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.59.R6639

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic flux turbulence was observed in single crystals of NdBa2Cu3O6+x near-optimally doped (x approximate to 1) and underdoped YBa2Cu3O6-x (x=0.50,0.82) using magneto-optical imaging. Such turbulent phenomena have so far been reported only for YBa2Cu3O6+x high-quality single crystals with optimal doping. The crystals were also characterized in terms of critical current density j(c), anisotropy gamma, and oxygen content/superstructure. The influence of these parameters on the turbulent behavior is discussed. [S0163-1829(99)50506-7].

引用

页码：R6639 / R6642

页数：4

共 16 条

[1] THE STRUCTURAL PHASE-DIAGRAM AND OXYGEN EQUILIBRIUM PARTIAL-PRESSURE OF YBA2CU3O6+X STUDIED BY NEUTRON POWDER DIFFRACTION AND GAS VOLUMETRY [J].

ANDERSEN, NH ;

LEBECH, B ;

POULSEN, HF .

PHYSICA C, 1990, 172 (1-2) :31-42

[2]

BAZILJEVICH M, UNPUB

[3] MAGNETIZATION OF HARD SUPERCONDUCTORS [J].

BEAN, CP .

PHYSICAL REVIEW LETTERS, 1962, 8 (06) :250-+

[4] Dynamics of oxygen ordering in YBa2Cu3O6+x studied by neutron and high-energy synchrotron X-ray diffraction. [J].

Frello, T ;

Andersen, NH ;

Madsen, J ;

Kali, M ;

vonZimmermann, M ;

Schmidt, O ;

Poulsen, HF ;

Schneider, JR ;

Wolf, T .

PHYSICA C, 1997, 282 :1089-1090

[5] STUDY OF FLUX DISTRIBUTIONS IN HIGH-T(C) SINGLE-CRYSTALS AND THIN-FILMS USING MAGNETOOPTIC TECHNIQUES [J].

INDENBOM, MV ;

SCHUSTER, T ;

KOBLISCHKA, MR ;

FORKL, A ;

KRONMULLER, H ;

DOROSINSKII, LA ;

VLASKOVLASOV, VK ;

POLYANSKII, AA ;

PROZOROV, RL ;

NIKITENKO, VI .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1993, 209 (1-3) :259-262

[6] Direct observation of the current distribution in thin superconducting strips using magneto-optic imaging [J].

Johansen, TH ;

Baziljevich, M ;

Bratsberg, H ;

Galperin, Y ;

Lindelof, PE ;

Shen, Y ;

Vase, P .

PHYSICAL REVIEW B, 1996, 54 (22) :16264-16269

[7]

JOHANSEN TH, UNPUB

[8] The universal sealing law in magnetic phase diagram of high temperature superconductors [J].

Kitazawa, K ;

Shimoyama, J ;

Ikuta, H ;

Sasagawa, T ;

Kishio, K .

PHYSICA C, 1997, 282 :335-338

[9] MAGNETOOPTICAL INVESTIGATIONS OF SUPERCONDUCTORS [J].

KOBLISCHKA, MR ;

WIJNGAARDEN, RJ .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1995, 8 (04) :199-213

[10] MACROTURBULENCE IN HIGH-T(C) SUPERCONDUCTORS [J].

VLASKOVLASOV, VK ;

NIKITENKO, VI ;

POLYANSKII, AA ;

CRABTREE, GW ;

WELP, U ;

VEAL, BW .

PHYSICA C, 1994, 222 (3-4) :361-366

← 1 2 →