Vortex glass melting in single crystal La1.825Sr0.075CuO4

被引：2

作者：

Herbsommer, JA

Luzuriaga, J

Cheong, SW

机构：

[1] CTR ATOM BARILOCHE,RA-8400 SAN CARLOS BARILO,RIO NEGRO,ARGENTINA

[2] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICA C | 1996年 / 258卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(95)00812-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The vortex phase diagram in single crystalline La1.85Sr0.075CuO4 has been studied using an AC-susceptibility technique. A peak in the out-of-phase (chi '') component of the susceptibility indicates a transition from a pinned flux lattice (FLL) to an unpinned one. This peak is frequency dependent for all the values of the magnetic field measured (0.01 to 4 T), and this, as well as the general behavior found in the cuprates, has prompted us to interpret our data as evidence for a vortex-glass to liquid transition in the FLL. The activation energies obtained can be fitted to a theory developed by Vinokur et al. Measurements with the magnetic field at an angle with the Cu-O planes may also be understood qualitatively within this framework.

引用

收藏

页码：169 / 174

页数：6

相关论文

共 17 条

[1] VORTICES IN HIGH-TEMPERATURE SUPERCONDUCTORS [J].

BLATTER, G ;

FEIGELMAN, MV ;

GESHKENBEIN, VB ;

LARKIN, AI ;

VINOKUR, VM .

REVIEWS OF MODERN PHYSICS, 1994, 66 (04) :1125-1388

[2] HIGH-FREQUENCY FLUX DYNAMICS IN SINGLE-CRYSTAL ND1.85CE0.15CUO4 [J].

FABREGA, L ;

FONTCUBERTA, J ;

CIVALE, L ;

PINOL, S .

PHYSICAL REVIEW B, 1994, 50 (02) :1199-1208

[3] AC RESPONSE OF THE VORTEX SYSTEM IN A PR1.85CE0.15CUO4-Y SINGLE-CRYSTAL [J].

FABREGA, L ;

FONTCUBERTA, J ;

PINOL, S ;

VANDERBEEK, CJ ;

KES, PH .

PHYSICAL REVIEW B, 1993, 47 (22) :15250-15255

[4] VORTEX-GLASS SUPERCONDUCTIVITY - A POSSIBLE NEW PHASE IN BULK HIGH-TC OXIDES [J].

FISHER, MPA .

PHYSICAL REVIEW LETTERS, 1989, 62 (12) :1415-1418

[5] EVIDENCE FROM MECHANICAL MEASUREMENTS FOR FLUX-LATTICE MELTING IN SINGLE-CRYSTAL YBA2CU3O7 AND BI2.2SR2CA0.8CU2O8 [J].

GAMMEL, PL ;

SCHNEEMEYER, LF ;

WASZCZAK, JV ;

BISHOP, DJ .

PHYSICAL REVIEW LETTERS, 1988, 61 (14) :1666-1669

[6] FLUX PINNING AND CREEP IN HIGH-TC SUPERCONDUCTORS [J].

GESHKENBEIN, V ;

LARKIN, A ;

FEIGELMAN, M ;

VINOKUR, V .

PHYSICA C, 1989, 162 :239-240

[7] EXPERIMENTAL-EVIDENCE FOR VORTEX-GLASS SUPERCONDUCTIVITY IN Y-BA-CU-O [J].

KOCH, RH ;

FOGLIETTI, V ;

GALLAGHER, WJ ;

KOREN, G ;

GUPTA, A ;

FISHER, MPA .

PHYSICAL REVIEW LETTERS, 1989, 63 (14) :1511-1514

[8] AC SUSCEPTIBILITY AND ACTIVATED ENERGY OF HIGH-T(C) SUPERCONDUCTOR HGBA2CA2CU3O8+X [J].

LI, J ;

DING, SY ;

SHAO, HM ;

ZHU, JS ;

WANG, YN .

PHYSICA C, 1994, 232 (1-2) :10-14

[9]

LING XS, 1991, MAGNETIC SUSCEPTIBILITY OF SUPERCONDUCTORS AND OTHER SPIN SYSTEMS, P377

[10] 3-DIMENSIONAL VORTEX FLUX-FLOW IN LSCO AND YBCO THROUGH PSEUDO-FLUX TRANSFORMER MEASUREMENTS [J].

LOPEZ, D ;

RODRIGUEZ, E ;

NIEVA, G ;

DELACRUZ, F ;

CHEONG, SW .

PHYSICA B, 1994, 194 :1977-1978