Transport properties of vortex matter governed by the edge inductance in superconducting Bi2Sr2CaCu2O8 crystals

被引：5

作者：

Beidenkopf, H. ^{[1
]}

Myasoedov, Y. ^{[1
]}

Zeldov, E. ^{[1
]}

Brandt, E. H. ^{[2
]}

Mikitik, G. P. ^{[2
,3
]}

Tamegai, T. ^{[4
]}

Sasagawa, T. ^{[5
]}

van der Beek, C. J. ^{[6
,7
]}

机构：

[1] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel

[2] Max Planck Inst Met Res, D-70506 Stuttgart, Germany

[3] B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine

[4] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[5] Tokyo Inst Technol, Mat & Struct Lab, Kanagawa 2268503, Japan

[6] Ecole Polytech, CEA IRAMIS DRECAM, F-91128 Palaiseau, France

[7] Ecole Polytech, CNRS, UMR 7642, Solides Irradies Lab, F-91128 Palaiseau, France

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 22期

关键词：

bismuth compounds; calcium compounds; electrical resistivity; flux pinning; high-temperature superconductors; long-range order; melting; strontium compounds; superconducting transitions; vortices; HIGH-TEMPERATURE SUPERCONDUCTORS; INTERLAYER PHASE COHERENCE; LATTICE MELTING TRANSITION; T-C SUPERCONDUCTORS; COLUMNAR DEFECTS; SINGLE-CRYSTALS; LAYERED SUPERCONDUCTORS; SURFACE BARRIERS; GLASS BEHAVIOR; MIXED-STATE;

D O I：

10.1103/PhysRevB.80.224526

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the distribution of transport current across superconducting Bi2Sr2CaCu2O8 crystals and the vortex flow through the sample edges. We show that the T-x transition is of electrodynamic rather than thermodynamic nature, below which vortex dynamics is governed by the edge inductance instead of the resistance. This allows measurement of the resistance down to 2 orders of magnitude below the transport noise. By irradiating the current contacts the resistive step at vortex melting is shown to be due to loss of c-axis correlations rather than breakdown of quasilong-range order within the a-b planes.

引用

页数：5

共 45 条

[1]

[Anonymous], PHYS REV B

[2] SURFACE BARRIER IN TYPE-2 SUPERCONDUCTORS [J].