Observation of Vortex Lattice melting in twinned YBa2Cu3O7-x using neutron small angle scattering

CM Aegerter; ST Johnson; WJ Nuttall; SH Lloyd; MT Wylie; MP Nutley; EM Forgan; R Cubitt; Stephen Leslie Lee; DMcK Paul; M Yethiraj; HA Mook

Observation of Vortex Lattice melting in twinned YBa2Cu3O7-x using neutron small angle scattering

CM Aegerter
, ST Johnson
, WJ Nuttall
, SH Lloyd
, MT Wylie
, MP Nutley
, EM Forgan
, R Cubitt
, Stephen Leslie Lee
, DMcK Paul
, M Yethiraj
, HA Mook

Research output: Contribution to journal › Article › peer-review

Abstract

A neutron small-angle scattering study of the flux-line lattice in heavily twinned YBa2Cu3O7-x is presented. It is found that the diffraction signal disappears at temperatures well below: T-c, associated with a melting of the flux lattice. The shape of the melting line is consistent with both a Lindemann criterion and the scaling expected for a vortex-glass transition with the superconducting parameters from the three-dimensional XY model. The influence of twin planes on the structure of the vortex lattice and its melting is studied by applying; the field at different angles to the c axis. The results are compared with recent specific heat measurements on similar crystals.

Original language	English
Pages (from-to)	14511
Number of pages	14511
Journal	Physical Review. B, Condensed matter and materials physics
Volume	57
Publication status	Published - 1 Jun 1998

Keywords

SINGLE-CRYSTAL YBA2CU3O7
MAGNETIC-FLUX LATTICE
ELECTRONIC-STRUCTURE
ELASTIC THEORY
SUPERCONDUCTORS
TRANSITION
DISORDER
SYMMETRY
HEAT

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title = "Observation of Vortex Lattice melting in twinned YBa2Cu3O7-x using neutron small angle scattering",

abstract = "A neutron small-angle scattering study of the flux-line lattice in heavily twinned YBa2Cu3O7-x is presented. It is found that the diffraction signal disappears at temperatures well below: T-c, associated with a melting of the flux lattice. The shape of the melting line is consistent with both a Lindemann criterion and the scaling expected for a vortex-glass transition with the superconducting parameters from the three-dimensional XY model. The influence of twin planes on the structure of the vortex lattice and its melting is studied by applying; the field at different angles to the c axis. The results are compared with recent specific heat measurements on similar crystals.",

keywords = "SINGLE-CRYSTAL YBA2CU3O7, MAGNETIC-FLUX LATTICE, ELECTRONIC-STRUCTURE, ELASTIC THEORY, SUPERCONDUCTORS, TRANSITION, DISORDER, SYMMETRY, HEAT",

author = "CM Aegerter and ST Johnson and WJ Nuttall and SH Lloyd and MT Wylie and MP Nutley and EM Forgan and R Cubitt and Lee, \{Stephen Leslie\} and DMcK Paul and M Yethiraj and HA Mook",

year = "1998",

month = jun,

day = "1",

language = "English",

volume = "57",

pages = "14511",

journal = "Physical Review. B, Condensed matter and materials physics",

issn = "1098-0121",

publisher = "American Physical Society",

}

TY - JOUR

T1 - Observation of Vortex Lattice melting in twinned YBa2Cu3O7-x using neutron small angle scattering

AU - Aegerter, CM

AU - Johnson, ST

AU - Nuttall, WJ

AU - Lloyd, SH

AU - Wylie, MT

AU - Nutley, MP

AU - Forgan, EM

AU - Cubitt, R

AU - Lee, Stephen Leslie

AU - Paul, DMcK

AU - Yethiraj, M

AU - Mook, HA

PY - 1998/6/1

Y1 - 1998/6/1

N2 - A neutron small-angle scattering study of the flux-line lattice in heavily twinned YBa2Cu3O7-x is presented. It is found that the diffraction signal disappears at temperatures well below: T-c, associated with a melting of the flux lattice. The shape of the melting line is consistent with both a Lindemann criterion and the scaling expected for a vortex-glass transition with the superconducting parameters from the three-dimensional XY model. The influence of twin planes on the structure of the vortex lattice and its melting is studied by applying; the field at different angles to the c axis. The results are compared with recent specific heat measurements on similar crystals.

AB - A neutron small-angle scattering study of the flux-line lattice in heavily twinned YBa2Cu3O7-x is presented. It is found that the diffraction signal disappears at temperatures well below: T-c, associated with a melting of the flux lattice. The shape of the melting line is consistent with both a Lindemann criterion and the scaling expected for a vortex-glass transition with the superconducting parameters from the three-dimensional XY model. The influence of twin planes on the structure of the vortex lattice and its melting is studied by applying; the field at different angles to the c axis. The results are compared with recent specific heat measurements on similar crystals.

KW - SINGLE-CRYSTAL YBA2CU3O7

KW - MAGNETIC-FLUX LATTICE

KW - ELECTRONIC-STRUCTURE

KW - ELASTIC THEORY

KW - SUPERCONDUCTORS

KW - TRANSITION

KW - DISORDER

KW - SYMMETRY

KW - HEAT

M3 - Article

SN - 1098-0121

VL - 57

SP - 14511

JO - Physical Review. B, Condensed matter and materials physics

JF - Physical Review. B, Condensed matter and materials physics

ER -

Observation of Vortex Lattice melting in twinned YBa2Cu3O7-x using neutron small angle scattering

Abstract

Keywords

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