Flux-line lattice structures in untwinned YBa2Cu3O7-d

Stephen Leslie Lee; ST Johnson; EM Forgan; SH Lloyd; other 7

Flux-line lattice structures in untwinned YBa2Cu3O7-d

Stephen Leslie Lee, ST Johnson, EM Forgan, SH Lloyd, other 7

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

Abstract

A small angle neutron scattering study of the flux-line lattice in a large untwinned single crystal of YBa2Cu3O7-delta is presented. In fields parallel to the c axis, diffraction spots are observed corresponding to four orientations of a hexagonal lattice, distorted by the a-b anisotropy, A value for the anisotropy, the penetration depth ratio, of lambda(a)/lambda(b) = 1.18(2) was obtained. The high quality of the data is such that second-order diffraction is observed. indicating a well ordered FLL. With the field at 33 degrees to c, a field dependent reorientation of the lattice is observed around 3 T. [S0031-9007(99)08812-2].

Original language	English
Pages (from-to)	2792-2795
Number of pages	4
Journal	Physical Review Letters
Volume	82
Publication status	Published - 29 Mar 1999

Keywords

ANGLE NEUTRON-SCATTERING
VORTEX LATTICE
PENETRATION DEPTH
SINGLE-CRYSTAL
UNIAXIAL SUPERCONDUCTORS
INPLANE ANISOTROPY
STATE
YBA2CU4O8
NIOBIUM

Cite this

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title = "Flux-line lattice structures in untwinned YBa2Cu3O7-d",

abstract = "A small angle neutron scattering study of the flux-line lattice in a large untwinned single crystal of YBa2Cu3O7-delta is presented. In fields parallel to the c axis, diffraction spots are observed corresponding to four orientations of a hexagonal lattice, distorted by the a-b anisotropy, A value for the anisotropy, the penetration depth ratio, of lambda(a)/lambda(b) = 1.18(2) was obtained. The high quality of the data is such that second-order diffraction is observed. indicating a well ordered FLL. With the field at 33 degrees to c, a field dependent reorientation of the lattice is observed around 3 T. [S0031-9007(99)08812-2].",

keywords = "ANGLE NEUTRON-SCATTERING, VORTEX LATTICE, PENETRATION DEPTH, SINGLE-CRYSTAL, UNIAXIAL SUPERCONDUCTORS, INPLANE ANISOTROPY, STATE, YBA2CU4O8, NIOBIUM",

author = "Lee, {Stephen Leslie} and ST Johnson and EM Forgan and SH Lloyd and other 7",

year = "1999",

month = mar,

day = "29",

language = "English",

volume = "82",

pages = "2792--2795",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

}

TY - JOUR

T1 - Flux-line lattice structures in untwinned YBa2Cu3O7-d

AU - Lee, Stephen Leslie

AU - Johnson, ST

AU - Forgan, EM

AU - Lloyd, SH

AU - 7, other

PY - 1999/3/29

Y1 - 1999/3/29

N2 - A small angle neutron scattering study of the flux-line lattice in a large untwinned single crystal of YBa2Cu3O7-delta is presented. In fields parallel to the c axis, diffraction spots are observed corresponding to four orientations of a hexagonal lattice, distorted by the a-b anisotropy, A value for the anisotropy, the penetration depth ratio, of lambda(a)/lambda(b) = 1.18(2) was obtained. The high quality of the data is such that second-order diffraction is observed. indicating a well ordered FLL. With the field at 33 degrees to c, a field dependent reorientation of the lattice is observed around 3 T. [S0031-9007(99)08812-2].

AB - A small angle neutron scattering study of the flux-line lattice in a large untwinned single crystal of YBa2Cu3O7-delta is presented. In fields parallel to the c axis, diffraction spots are observed corresponding to four orientations of a hexagonal lattice, distorted by the a-b anisotropy, A value for the anisotropy, the penetration depth ratio, of lambda(a)/lambda(b) = 1.18(2) was obtained. The high quality of the data is such that second-order diffraction is observed. indicating a well ordered FLL. With the field at 33 degrees to c, a field dependent reorientation of the lattice is observed around 3 T. [S0031-9007(99)08812-2].

KW - ANGLE NEUTRON-SCATTERING

KW - VORTEX LATTICE

KW - PENETRATION DEPTH

KW - SINGLE-CRYSTAL

KW - UNIAXIAL SUPERCONDUCTORS

KW - INPLANE ANISOTROPY

KW - STATE

KW - YBA2CU4O8

KW - NIOBIUM

UR - http://www.scopus.com/inward/record.url?scp=0032606198&partnerID=8YFLogxK

M3 - Article

SN - 0031-9007

VL - 82

SP - 2792

EP - 2795

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Flux-line lattice structures in untwinned YBa2Cu3O7-d

Abstract

Keywords

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