Small angle neutron scattering study of the magnetic flux-line lattice in single crystal 2H-NbSe2

P.L. Gammel; D.A. Huse; R.N. Kleiman; B. Batlogg; C.S. Oglesby; E. Bucher; D.J. Bishop; T.E. Mason; K. Mortensen

doi:10.1103/PhysRevLett.72.278

Small angle neutron scattering study of the magnetic flux-line lattice in single crystal 2H-NbSe₂

P.L. Gammel, D.A. Huse, R.N. Kleiman, B. Batlogg, C.S. Oglesby, E. Bucher, D.J. Bishop, T.E. Mason, K. Mortensen

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Abstract

We report on a small angle neutron scattering study of the flux-line lattice in single crystal 2H-NbSe2. As the magnetic field is tilted away from the crystalline c axis, we find distortions in the flux lattice as would be expected for a mass anisotropy GAMMA = 10.1 +/- 0.9. However, we find that the lattice orientation is in disagreement with the predictions of both anisotropic London and Ginzburg-Landau theories. The observed flux lattice orientation remains pinned to that of the crystal lattice for the field orientations studied. The form factors can be quantitatively understood within the framework of Ginzburg-Landau corrections to the London equations.

Original language	English
Journal	Physical Review Letters
Volume	72
Issue number	2
Pages (from-to)	278-281
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.72.278
Publication status	Published - 1994

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title = "Small angle neutron scattering study of the magnetic flux-line lattice in single crystal 2H-NbSe2",

abstract = "We report on a small angle neutron scattering study of the flux-line lattice in single crystal 2H-NbSe2. As the magnetic field is tilted away from the crystalline c axis, we find distortions in the flux lattice as would be expected for a mass anisotropy GAMMA = 10.1 +/- 0.9. However, we find that the lattice orientation is in disagreement with the predictions of both anisotropic London and Ginzburg-Landau theories. The observed flux lattice orientation remains pinned to that of the crystal lattice for the field orientations studied. The form factors can be quantitatively understood within the framework of Ginzburg-Landau corrections to the London equations. ",

keywords = "Materialer med s{\ae}rlige fysiske og kemiske egenskaber",

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T1 - Small angle neutron scattering study of the magnetic flux-line lattice in single crystal 2H-NbSe2

AU - Gammel, P.L.

AU - Huse, D.A.

AU - Kleiman, R.N.

AU - Batlogg, B.

AU - Oglesby, C.S.

AU - Bucher, E.

AU - Bishop, D.J.

AU - Mason, T.E.

AU - Mortensen, K.

PY - 1994

Y1 - 1994

N2 - We report on a small angle neutron scattering study of the flux-line lattice in single crystal 2H-NbSe2. As the magnetic field is tilted away from the crystalline c axis, we find distortions in the flux lattice as would be expected for a mass anisotropy GAMMA = 10.1 +/- 0.9. However, we find that the lattice orientation is in disagreement with the predictions of both anisotropic London and Ginzburg-Landau theories. The observed flux lattice orientation remains pinned to that of the crystal lattice for the field orientations studied. The form factors can be quantitatively understood within the framework of Ginzburg-Landau corrections to the London equations.

AB - We report on a small angle neutron scattering study of the flux-line lattice in single crystal 2H-NbSe2. As the magnetic field is tilted away from the crystalline c axis, we find distortions in the flux lattice as would be expected for a mass anisotropy GAMMA = 10.1 +/- 0.9. However, we find that the lattice orientation is in disagreement with the predictions of both anisotropic London and Ginzburg-Landau theories. The observed flux lattice orientation remains pinned to that of the crystal lattice for the field orientations studied. The form factors can be quantitatively understood within the framework of Ginzburg-Landau corrections to the London equations.

KW - Materialer med særlige fysiske og kemiske egenskaber

U2 - 10.1103/PhysRevLett.72.278

DO - 10.1103/PhysRevLett.72.278

M3 - Journal article

SN - 0031-9007

VL - 72

SP - 278

EP - 281

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2