Anisotropy of the upper critical field and critical current in single crystal MgB2

L. Lyard; P. Samuely; P. Szabo; T. Klein; C. Marcenat; L. Paulius; K. H.P. Kim; C. U. Jung; H. S. Lee; B. Kang; S. Choi; S. I. Lee; J. Marcus; S. Blanchard; A. G.M. Jansen; U. Welp; G. Karapetrov; W. K. Kwok

Anisotropy of the upper critical field and critical current in single crystal MgB₂

L. Lyard
, P. Samuely
, P. Szabo
, T. Klein
, C. Marcenat
, L. Paulius
, K. H.P. Kim
, C. U. Jung
, H. S. Lee
, B. Kang
, S. Choi
, S. I. Lee
, J. Marcus
, S. Blanchard
, A. G.M. Jansen
, U. Welp
, G. Karapetrov
, W. K. Kwok

Institut NÉEL
DRFMC-SPSMS
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Institute of Experimental Physics Slovak Academy of Sciences
Pohang University of Science and Technology
CNRS

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

Résumé

We report on specific-heat, high-magnetic-field transport, and ac-susceptibility measurements on MgB₂ single crystals. The upper critical field for magnetic fields perpendicular and parallel to the basal planes is presented in the entire temperature range. A very different temperature dependence has been observed in the two directions, which yields a temperature-dependent anisotropy with Γ∼5 at low temperatures and ∼2 near T_c. A peak effect is observed for μ₀H∼2 T parallel to the c axis, and the critical current density presents a sharp maximum for H parallel to the ab plane.

langue originale	Anglais
Numéro d'article	180502
Pages (de - à)	1805021-1805024
Nombre de pages	4
journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Numéro de publication	18
état	Publié - 1 nov. 2002
Modification externe	Oui

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Lyard, L., Samuely, P., Szabo, P., Klein, T., Marcenat, C., Paulius, L., Kim, K. H. P., Jung, C. U., Lee, H. S., Kang, B., Choi, S., Lee, S. I., Marcus, J., Blanchard, S., Jansen, A. G. M., Welp, U., Karapetrov, G., & Kwok, W. K. (2002). Anisotropy of the upper critical field and critical current in single crystal MgB₂. Physical Review B - Condensed Matter and Materials Physics, 66(18), 1805021-1805024. Article 180502.

@article{438d4a8ab73c483bbcb8a03dd25a498e,

title = "Anisotropy of the upper critical field and critical current in single crystal MgB2",

abstract = "We report on specific-heat, high-magnetic-field transport, and ac-susceptibility measurements on MgB2 single crystals. The upper critical field for magnetic fields perpendicular and parallel to the basal planes is presented in the entire temperature range. A very different temperature dependence has been observed in the two directions, which yields a temperature-dependent anisotropy with Γ∼5 at low temperatures and ∼2 near Tc. A peak effect is observed for μ0H∼2 T parallel to the c axis, and the critical current density presents a sharp maximum for H parallel to the ab plane.",

author = "L. Lyard and P. Samuely and P. Szabo and T. Klein and C. Marcenat and L. Paulius and Kim, \{K. H.P.\} and Jung, \{C. U.\} and Lee, \{H. S.\} and B. Kang and S. Choi and Lee, \{S. I.\} and J. Marcus and S. Blanchard and Jansen, \{A. G.M.\} and U. Welp and G. Karapetrov and Kwok, \{W. K.\}",

year = "2002",

month = nov,

day = "1",

language = "English",

volume = "66",

pages = "1805021--1805024",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

number = "18",

}

Lyard, L, Samuely, P, Szabo, P, Klein, T, Marcenat, C, Paulius, L, Kim, KHP, Jung, CU, Lee, HS, Kang, B, Choi, S, Lee, SI, Marcus, J, Blanchard, S, Jansen, AGM, Welp, U, Karapetrov, G & Kwok, WK 2002, 'Anisotropy of the upper critical field and critical current in single crystal MgB₂', Physical Review B - Condensed Matter and Materials Physics, VOL. 66, Numéro 18, 180502, p. 1805021-1805024.

TY - JOUR

T1 - Anisotropy of the upper critical field and critical current in single crystal MgB2

AU - Lyard, L.

AU - Samuely, P.

AU - Szabo, P.

AU - Klein, T.

AU - Marcenat, C.

AU - Paulius, L.

AU - Kim, K. H.P.

AU - Jung, C. U.

AU - Lee, H. S.

AU - Kang, B.

AU - Choi, S.

AU - Lee, S. I.

AU - Marcus, J.

AU - Blanchard, S.

AU - Jansen, A. G.M.

AU - Welp, U.

AU - Karapetrov, G.

AU - Kwok, W. K.

PY - 2002/11/1

Y1 - 2002/11/1

N2 - We report on specific-heat, high-magnetic-field transport, and ac-susceptibility measurements on MgB2 single crystals. The upper critical field for magnetic fields perpendicular and parallel to the basal planes is presented in the entire temperature range. A very different temperature dependence has been observed in the two directions, which yields a temperature-dependent anisotropy with Γ∼5 at low temperatures and ∼2 near Tc. A peak effect is observed for μ0H∼2 T parallel to the c axis, and the critical current density presents a sharp maximum for H parallel to the ab plane.

AB - We report on specific-heat, high-magnetic-field transport, and ac-susceptibility measurements on MgB2 single crystals. The upper critical field for magnetic fields perpendicular and parallel to the basal planes is presented in the entire temperature range. A very different temperature dependence has been observed in the two directions, which yields a temperature-dependent anisotropy with Γ∼5 at low temperatures and ∼2 near Tc. A peak effect is observed for μ0H∼2 T parallel to the c axis, and the critical current density presents a sharp maximum for H parallel to the ab plane.

UR - https://www.scopus.com/pages/publications/0000913345

M3 - Article

AN - SCOPUS:0000913345

SN - 1098-0121

VL - 66

SP - 1805021

EP - 1805024

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 18

M1 - 180502

ER -

Anisotropy of the upper critical field and critical current in single crystal MgB2

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Contient cette citation

Anisotropy of the upper critical field and critical current in single crystal MgB₂