μSR studies of superconducting MgB1.96C0.04

K. Papagelis; J. Arvanitidis; I. Margiolaki; K. Brigatti; K. Prassides; A. Schenck; A. Lappas; A. Amato; Y. Iwasa; T. Takenobu

doi:10.1016/S0921-4526(02)01621-6

μSR studies of superconducting MgB_1.96C_0.04

K. Papagelis^*, J. Arvanitidis, I. Margiolaki, K. Brigatti, K. Prassides, A. Schenck, A. Lappas, A. Amato, Y. Iwasa, T. Takenobu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The superconducting properties of MgB_1.96C_0.04 have been investigated by the transverse-field muon spin rotation (TF-μSR) technique. The extracted temperature dependence of the μ⁺ spin depolarization rate, σ at TF = 0.6T has been analyzed in terms of a two-gap model. Carbon doping affects the size of both superconducting gaps and the doping effect is more pronounced for the smaller gap, which is related to the 3D π-sheets of the Fermi surface. The 'universal' correlation between the superconducting transition temperature, T_c and the effective Fermi temperature, T_F (Uemura plot) is also discussed.

Original language	English
Pages (from-to)	346-349
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	326
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4526(02)01621-6
Publication status	Published - 2003 Feb
Externally published	Yes

Keywords

Carbon doped MgB
Two-gap model

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/S0921-4526(02)01621-6

Cite this

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title = "μSR studies of superconducting MgB1.96C0.04 ",

abstract = "The superconducting properties of MgB1.96C0.04 have been investigated by the transverse-field muon spin rotation (TF-μSR) technique. The extracted temperature dependence of the μ+ spin depolarization rate, σ at TF = 0.6T has been analyzed in terms of a two-gap model. Carbon doping affects the size of both superconducting gaps and the doping effect is more pronounced for the smaller gap, which is related to the 3D π-sheets of the Fermi surface. The 'universal' correlation between the superconducting transition temperature, Tc and the effective Fermi temperature, TF (Uemura plot) is also discussed.",

keywords = "Carbon doped MgB, Two-gap model",

author = "K. Papagelis and J. Arvanitidis and I. Margiolaki and K. Brigatti and K. Prassides and A. Schenck and A. Lappas and A. Amato and Y. Iwasa and T. Takenobu",

year = "2003",

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language = "English",

volume = "326",

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T1 - μSR studies of superconducting MgB1.96C0.04

AU - Papagelis, K.

AU - Arvanitidis, J.

AU - Margiolaki, I.

AU - Brigatti, K.

AU - Prassides, K.

AU - Schenck, A.

AU - Lappas, A.

AU - Amato, A.

AU - Iwasa, Y.

AU - Takenobu, T.

PY - 2003/2

Y1 - 2003/2

N2 - The superconducting properties of MgB1.96C0.04 have been investigated by the transverse-field muon spin rotation (TF-μSR) technique. The extracted temperature dependence of the μ+ spin depolarization rate, σ at TF = 0.6T has been analyzed in terms of a two-gap model. Carbon doping affects the size of both superconducting gaps and the doping effect is more pronounced for the smaller gap, which is related to the 3D π-sheets of the Fermi surface. The 'universal' correlation between the superconducting transition temperature, Tc and the effective Fermi temperature, TF (Uemura plot) is also discussed.

AB - The superconducting properties of MgB1.96C0.04 have been investigated by the transverse-field muon spin rotation (TF-μSR) technique. The extracted temperature dependence of the μ+ spin depolarization rate, σ at TF = 0.6T has been analyzed in terms of a two-gap model. Carbon doping affects the size of both superconducting gaps and the doping effect is more pronounced for the smaller gap, which is related to the 3D π-sheets of the Fermi surface. The 'universal' correlation between the superconducting transition temperature, Tc and the effective Fermi temperature, TF (Uemura plot) is also discussed.

KW - Carbon doped MgB

KW - Two-gap model

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