High resolution neutron diffraction investigation of vortex lattice transitions in YNi2B2C

DMcK Paul; CV Tomy; CM Aegerter; R Cubitt; SH Lloyd; EM Forgan; Stephen Leslie Lee; M Yethiraj

High resolution neutron diffraction investigation of vortex lattice transitions in YNi2B2C

DMcK Paul, CV Tomy, CM Aegerter, R Cubitt, SH Lloyd, EM Forgan, Stephen Leslie Lee, M Yethiraj

Research output: Other contribution

Abstract

High resolution, neutron small angle scattering studies have been performed to investigate the low field (B < 250 mT) region of the phase diagram for the vortex lattice in the superconducting state of YNi2B2C. The data present clear evidence for a vortex lattice reorientation transition from a state with the diagonal of the rhombic unit cell along a [110] direction to a [100] direction. Above this transition the lattice distorts under the influence of the applied field until the apex angle becomes constant at some higher field. For B parallel to c a square lattice configuration is formed. These experiments confirm qualitatively many of the predictions of a general model based on nonlocal corrections to the London model as applied to this and similar materials.

Original language	English
Number of pages	1517
Volume	80
Publication status	Published - 16 Feb 1998

Keywords

SUPERCONDUCTIVITY
MAGNETISM
ERNI2B2C

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title = "High resolution neutron diffraction investigation of vortex lattice transitions in YNi2B2C",

abstract = "High resolution, neutron small angle scattering studies have been performed to investigate the low field (B < 250 mT) region of the phase diagram for the vortex lattice in the superconducting state of YNi2B2C. The data present clear evidence for a vortex lattice reorientation transition from a state with the diagonal of the rhombic unit cell along a [110] direction to a [100] direction. Above this transition the lattice distorts under the influence of the applied field until the apex angle becomes constant at some higher field. For B parallel to c a square lattice configuration is formed. These experiments confirm qualitatively many of the predictions of a general model based on nonlocal corrections to the London model as applied to this and similar materials.",

keywords = "SUPERCONDUCTIVITY, MAGNETISM, ERNI2B2C",

author = "DMcK Paul and CV Tomy and CM Aegerter and R Cubitt and SH Lloyd and EM Forgan and Lee, {Stephen Leslie} and M Yethiraj",

note = "Phys Rev Lett",

year = "1998",

month = feb,

day = "16",

language = "English",

volume = "80",

type = "Other",

}

TY - GEN

T1 - High resolution neutron diffraction investigation of vortex lattice transitions in YNi2B2C

AU - Paul, DMcK

AU - Tomy, CV

AU - Aegerter, CM

AU - Cubitt, R

AU - Lloyd, SH

AU - Forgan, EM

AU - Lee, Stephen Leslie

AU - Yethiraj, M

N1 - Phys Rev Lett

PY - 1998/2/16

Y1 - 1998/2/16

N2 - High resolution, neutron small angle scattering studies have been performed to investigate the low field (B < 250 mT) region of the phase diagram for the vortex lattice in the superconducting state of YNi2B2C. The data present clear evidence for a vortex lattice reorientation transition from a state with the diagonal of the rhombic unit cell along a [110] direction to a [100] direction. Above this transition the lattice distorts under the influence of the applied field until the apex angle becomes constant at some higher field. For B parallel to c a square lattice configuration is formed. These experiments confirm qualitatively many of the predictions of a general model based on nonlocal corrections to the London model as applied to this and similar materials.

AB - High resolution, neutron small angle scattering studies have been performed to investigate the low field (B < 250 mT) region of the phase diagram for the vortex lattice in the superconducting state of YNi2B2C. The data present clear evidence for a vortex lattice reorientation transition from a state with the diagonal of the rhombic unit cell along a [110] direction to a [100] direction. Above this transition the lattice distorts under the influence of the applied field until the apex angle becomes constant at some higher field. For B parallel to c a square lattice configuration is formed. These experiments confirm qualitatively many of the predictions of a general model based on nonlocal corrections to the London model as applied to this and similar materials.

KW - SUPERCONDUCTIVITY

KW - MAGNETISM

KW - ERNI2B2C

M3 - Other contribution

VL - 80

ER -

High resolution neutron diffraction investigation of vortex lattice transitions in YNi2B2C

Abstract

Keywords

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