FREEZING OF THE VORTEX LIQUID IN HIGH-TC SUPERCONDUCTORS - A DENSITY-FUNCTIONAL APPROACH

被引：79

作者：

SENGUPTA, S ^{[1
]}

DASGUPTA, C ^{[1
]}

KRISHNAMURTHY, HR ^{[1
]}

MENON, GI ^{[1
]}

RAMAKRISHNAN, TV ^{[1
]}

机构：

[1] JAWAHARLAL NEHRU CTR ADV SCI RES,BANGALORE,INDIA

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.67.3444

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The structure of the unpinned vortex fluid in layered oxide high-temperature superconductors is investigated numerically using appropriate classical liquid-state theory, for magnetic fields B perpendicular to the layer plane. The direct correlation function so obtained is used as input for a first-principles, parameter-free calculation of the discontinuous fluid-to-Abrikosov-lattice transition boundary T(f)(B). This transition boundary is found to have a shape and location similar to that observed in strongly anisotropic materials, e.g., Bi-Sr-Ca-Cu-O.

引用

收藏

页码：3444 / 3447

页数：4

相关论文

共 29 条

[11] 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

[12] SQUID PICOVOLTOMETRY OF YBA2CU3O7 SINGLE-CRYSTALS - EVIDENCE FOR A FINITE-TEMPERATURE PHASE-TRANSITION IN THE HIGH-FIELD VORTEX STATE [J].

GAMMEL, PL ;

SCHNEEMEYER, LF ;

BISHOP, DJ .

PHYSICAL REVIEW LETTERS, 1991, 66 (07) :953-956

[13] NEW METHOD OF SOLVING THE LIQUID STRUCTURE INTEGRAL-EQUATIONS [J].

GILLAN, MJ .

MOLECULAR PHYSICS, 1979, 38 (06) :1781-1794

[14]

GILLAN MJ, 1979, MOL PHYS, V38, P6

[15] THERMAL FLUCTUATIONS AND PHASE-TRANSITIONS IN THE VORTEX STATE OF A LAYERED SUPERCONDUCTOR [J].

GLAZMAN, LI ;

KOSHELEV, AE .

PHYSICAL REVIEW B, 1991, 43 (04) :2835-2843

[16] THE TWO-DIMENSIONAL ONE-COMPONENT PLASMA IN THE HYPERNETTED CHAIN APPROXIMATION [J].

HANSEN, JP ;

LEVESQUE, D .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1981, 14 (21) :L603-L608

[17] LOCAL MAGNETIC-FIELDS IN THE PINNED VORTEX STATE - EFFECT ON THE MU+-SPIN-ROTATION LINE-SHAPE [J].

HARSHMAN, DR ;

FIORY, AT ;

CAVA, RJ .

PHYSICAL REVIEW LETTERS, 1991, 66 (25) :3313-3316

[18] FLUX LATTICE MELTING IN HIGH-TC SUPERCONDUCTORS [J].

HOUGHTON, A ;

PELCOVITS, RA ;

SUDBO, A .

PHYSICAL REVIEW B, 1989, 40 (10) :6763-6770

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

KOCH, RH ;

FOGLIETTI, V ;

FISHER, MPA .

PHYSICAL REVIEW LETTERS, 1990, 64 (21) :2586-2586

[20] 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