Dynamic and thermodynamic properties of porous vortex matter in Bi2Sr2CaCu2O8 in an oblique magnetic field

被引：17

作者：

Avraham, Nurit ^{[1
]}

Goldschmidt, Y. Y.

Liu, J. T.

Myasoedov, Y.

Rappaport, M.

Zeldov, E.

van der Beek, C. J.

Konczykowski, M.

Tamegai, T.

机构：

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

[2] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

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

[4] Ecole Polytech, CEA, CMS, DRECAM, F-91128 Palaiseau, France

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

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.99.087001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Vortex matter in Bi2Sr2CaCu2O8 with a low concentration of tilted columnar defects (CDs) was studied using magneto-optical measurements and molecular dynamics simulations. It is found that while the dynamic properties are significantly affected by tilting the magnetic field away from the CDs, the thermodynamic transitions are angle independent. The simulations indicate that vortex pancakes remain localized on the CDs even at large tilting angles. This preserves the vortex thermodynamics, while vortex pinning is considerably weakened due to kink sliding.

引用

页数：4

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