Flux line lattice symmetries in the borocarbide superconductor LuNi2B2C

M.R. Eskildsen; A.B. Abrahamsen; P.L. Gammel; D.J. Bishop; N.H. Andersen; K. Mortensen; P.C. Canfield

doi:10.1007/s12043-002-0192-3

Flux line lattice symmetries in the borocarbide superconductor LuNi₂B₂C

M.R. Eskildsen
, A.B. Abrahamsen
, P.L. Gammel
, D.J. Bishop
, N.H. Andersen
, K. Mortensen
, P.C. Canfield

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

We compare the results of small angle neutron scattering on the flux line lattice (FLL) obtained in the borocarbide superconductor LuNi₂B₂C with the applied field along the c- and a-axes. For H‖c the temperature dependence of the FLL structural phase transition from square to hexagonal symmetry was investigated. Above 10 K the transition onset field. H ₂(T), rises sharply, bending away from H_c2(T) in contradiction to theoretical predictions of the two merging. For H‖a a first order FLL reorientation transition is observed at H_tr=3–3.5 kOe. Below H _tr the FLL nearest neighbor direction is parallel to the b-axis, and above H tr to the c-axis. This transition cannot be explained using nonlocal corrections to the London model.

Original language	English
Journal	Pramana
Volume	58
Issue number	5-6
Pages (from-to)	903-905
ISSN	0973-7111
DOIs	https://doi.org/10.1007/s12043-002-0192-3
Publication status	Published - 2002
Event	International symposium on advances in superconductivity and magnetism: materials, mechanisms and devices (ASMM2D-2001) - Mangalore (IN), 25-28 Sep Duration: 1 Jan 2001 → …

Conference

Conference	International symposium on advances in superconductivity and magnetism: materials, mechanisms and devices (ASMM2D-2001)
City	Mangalore (IN), 25-28 Sep
Period	01/01/2001 → …

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Cite this

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title = "Flux line lattice symmetries in the borocarbide superconductor LuNi2B2C",

abstract = "We compare the results of small angle neutron scattering on the flux line lattice (FLL) obtained in the borocarbide superconductor LuNi2B2C with the applied field along the c- and a-axes. For H‖c the temperature dependence of the FLL structural phase transition from square to hexagonal symmetry was investigated. Above 10 K the transition onset field. H 2(T), rises sharply, bending away from H c2(T) in contradiction to theoretical predictions of the two merging. For H‖a a first order FLL reorientation transition is observed at H tr=3–3.5 kOe. Below H tr the FLL nearest neighbor direction is parallel to the b-axis, and above H tr to the c-axis. This transition cannot be explained using nonlocal corrections to the London model.",

keywords = "5-I nano",

author = "M.R. Eskildsen and A.B. Abrahamsen and P.L. Gammel and D.J. Bishop and N.H. Andersen and K. Mortensen and P.C. Canfield",

year = "2002",

doi = "10.1007/s12043-002-0192-3",

language = "English",

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journal = "Pramana",

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TY - GEN

T1 - Flux line lattice symmetries in the borocarbide superconductor LuNi2B2C

AU - Eskildsen, M.R.

AU - Abrahamsen, A.B.

AU - Gammel, P.L.

AU - Bishop, D.J.

AU - Andersen, N.H.

AU - Mortensen, K.

AU - Canfield, P.C.

PY - 2002

Y1 - 2002

N2 - We compare the results of small angle neutron scattering on the flux line lattice (FLL) obtained in the borocarbide superconductor LuNi2B2C with the applied field along the c- and a-axes. For H‖c the temperature dependence of the FLL structural phase transition from square to hexagonal symmetry was investigated. Above 10 K the transition onset field. H 2(T), rises sharply, bending away from H c2(T) in contradiction to theoretical predictions of the two merging. For H‖a a first order FLL reorientation transition is observed at H tr=3–3.5 kOe. Below H tr the FLL nearest neighbor direction is parallel to the b-axis, and above H tr to the c-axis. This transition cannot be explained using nonlocal corrections to the London model.

AB - We compare the results of small angle neutron scattering on the flux line lattice (FLL) obtained in the borocarbide superconductor LuNi2B2C with the applied field along the c- and a-axes. For H‖c the temperature dependence of the FLL structural phase transition from square to hexagonal symmetry was investigated. Above 10 K the transition onset field. H 2(T), rises sharply, bending away from H c2(T) in contradiction to theoretical predictions of the two merging. For H‖a a first order FLL reorientation transition is observed at H tr=3–3.5 kOe. Below H tr the FLL nearest neighbor direction is parallel to the b-axis, and above H tr to the c-axis. This transition cannot be explained using nonlocal corrections to the London model.

KW - 5-I nano

U2 - 10.1007/s12043-002-0192-3

DO - 10.1007/s12043-002-0192-3

M3 - Conference article

SN - 0973-7111

VL - 58

SP - 903

EP - 905

JO - Pramana

JF - Pramana

IS - 5-6

T2 - International symposium on advances in superconductivity and magnetism: materials, mechanisms and devices (ASMM2D-2001)

Y2 - 1 January 2001

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