Anisotropies of the Lower and Upper Critical Fields in MgB2 Single Crystals

L. Lyard; P. Szabó; T. Klein; J. Marcus; C. Marcenat; K. H. Kim; B. W. Kang; H. S. Lee; S. I. Lee

Anisotropies of the Lower and Upper Critical Fields in MgB₂ Single Crystals

L. Lyard
, P. Szabó
, T. Klein
, J. Marcus
, C. Marcenat
, K. H. Kim
, B. W. Kang
, H. S. Lee
, S. I. Lee

École Polytechnique

CNRS
Slovak Academy of Sciences
Institut Universitaire de France
Univ. Joseph Fourier-Grenoble 1
Pohang University of Science and Technology

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

96 Citations (Scopus)

Résumé

The magnetization measurements on quality single crystals of MgB ₂ were presented. The temperature dependence of the upper and lower critical fields was deduced from these measurements along the two main crystallographic directions. MgB₂ was described by a single field dependent anisotropy parameter. The results show that γ_Hc1 and γ_Hc2 not only differ in absolute value at low temperature but also have opposite temperature dependencies in MgB₂.

langue originale	Anglais
Numéro d'article	057001
Pages (de - à)	570011-570014
Nombre de pages	4
journal	Physical Review Letters
Volume	92
Numéro de publication	5
état	Publié - 6 févr. 2004

Contient cette citation

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title = "Anisotropies of the Lower and Upper Critical Fields in MgB2 Single Crystals",

abstract = "The magnetization measurements on quality single crystals of MgB 2 were presented. The temperature dependence of the upper and lower critical fields was deduced from these measurements along the two main crystallographic directions. MgB2 was described by a single field dependent anisotropy parameter. The results show that γHc1 and γHc2 not only differ in absolute value at low temperature but also have opposite temperature dependencies in MgB2.",

author = "L. Lyard and P. Szab{\'o} and T. Klein and J. Marcus and C. Marcenat and Kim, \{K. H.\} and Kang, \{B. W.\} and Lee, \{H. S.\} and Lee, \{S. I.\}",

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volume = "92",

pages = "570011--570014",

journal = "Physical Review Letters",

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T1 - Anisotropies of the Lower and Upper Critical Fields in MgB2 Single Crystals

AU - Lyard, L.

AU - Szabó, P.

AU - Klein, T.

AU - Marcus, J.

AU - Marcenat, C.

AU - Kim, K. H.

AU - Kang, B. W.

AU - Lee, H. S.

AU - Lee, S. I.

PY - 2004/2/6

Y1 - 2004/2/6

N2 - The magnetization measurements on quality single crystals of MgB 2 were presented. The temperature dependence of the upper and lower critical fields was deduced from these measurements along the two main crystallographic directions. MgB2 was described by a single field dependent anisotropy parameter. The results show that γHc1 and γHc2 not only differ in absolute value at low temperature but also have opposite temperature dependencies in MgB2.

AB - The magnetization measurements on quality single crystals of MgB 2 were presented. The temperature dependence of the upper and lower critical fields was deduced from these measurements along the two main crystallographic directions. MgB2 was described by a single field dependent anisotropy parameter. The results show that γHc1 and γHc2 not only differ in absolute value at low temperature but also have opposite temperature dependencies in MgB2.

M3 - Article

AN - SCOPUS:1642271605

SN - 0031-9007

VL - 92

SP - 570011

EP - 570014

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 057001

ER -

Anisotropies of the Lower and Upper Critical Fields in MgB2 Single Crystals

Résumé

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Contient cette citation

Anisotropies of the Lower and Upper Critical Fields in MgB₂ Single Crystals