Simultaneous resistivity onset and first-order vortex-lattice phase transition in Bi2Sr2CaCu2O8

被引：59

作者：

Fuchs, DT

Zeldov, E

Majer, D

Doyle, RA

Tamegai, T

Ooi, S

Konczykowski, M

机构：

[1] UNIV CAMBRIDGE,INTERDISCIPLINARY RES CTR SUPERCONDUCT,CAMBRIDGE CB3 0HE,ENGLAND

[2] UNIV TOKYO,DEPT APPL PHYS,BUNKYO KU,TOKYO 113,JAPAN

[3] ECOLE POLYTECH,SOLIDES IRRADIES LAB,CNRS URA 1380,F-91128 PALAISEAU,FRANCE

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.54.R796

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Simultaneous measurements of resistivity and local magnetization using microscopic Hall sensors were carried out on Bi2Sr2CaCu2O8 crystals as a function of applied field and temperature. The resistivity onset is found to occur concurrently with the first-order vortex-lattice phase transition, determined by the equilibrium magnetization step. This behavior strongly suggests that the vortex lattice melts at the phase transition. The apparently reversible magnetization below the transition is ascribed to substantial flux creep.

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页码：R796 / R799

页数：4

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