Transport properties of MgB2 single crystal

T. Masui; S. Lee; A. Yamamoto; S. Tajima

doi:10.1016/S0921-4534(02)01415-6

Transport properties of MgB₂ single crystal

T. Masui, S. Lee, A. Yamamoto, S. Tajima

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

20 Citations (Scopus)

Abstract

We report the ab-plane and c-axis resistivity of MgB₂ single crystals. The absolute value of the c-axis resistivity is one to two orders of magnitude larger than the in-plane resistivity. The temperature dependencies are almost the same in both directions. Anisotropy in the superconducting state is determined from the resistivity measurements under magnetic field. This is compared to the anisotropy estimated from the normal state resistivity. The fairly good agreement of anisotropy ratio in the normal and superconducting state implies that electronic state of MgB₂ can be analyzed within the three-dimensional effective mass model.

Original language	English
Pages (from-to)	216-219
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	378-381
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(02)01415-6
Publication status	Published - 2002 Oct 1
Externally published	Yes

Keywords

Anisotropy
MgB
Resistivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4534(02)01415-6

Cite this

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title = "Transport properties of MgB2 single crystal",

abstract = "We report the ab-plane and c-axis resistivity of MgB2 single crystals. The absolute value of the c-axis resistivity is one to two orders of magnitude larger than the in-plane resistivity. The temperature dependencies are almost the same in both directions. Anisotropy in the superconducting state is determined from the resistivity measurements under magnetic field. This is compared to the anisotropy estimated from the normal state resistivity. The fairly good agreement of anisotropy ratio in the normal and superconducting state implies that electronic state of MgB2 can be analyzed within the three-dimensional effective mass model.",

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AU - Masui, T.

AU - Lee, S.

AU - Yamamoto, A.

AU - Tajima, S.

N1 - Funding Information: This work is supported by New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - We report the ab-plane and c-axis resistivity of MgB2 single crystals. The absolute value of the c-axis resistivity is one to two orders of magnitude larger than the in-plane resistivity. The temperature dependencies are almost the same in both directions. Anisotropy in the superconducting state is determined from the resistivity measurements under magnetic field. This is compared to the anisotropy estimated from the normal state resistivity. The fairly good agreement of anisotropy ratio in the normal and superconducting state implies that electronic state of MgB2 can be analyzed within the three-dimensional effective mass model.

AB - We report the ab-plane and c-axis resistivity of MgB2 single crystals. The absolute value of the c-axis resistivity is one to two orders of magnitude larger than the in-plane resistivity. The temperature dependencies are almost the same in both directions. Anisotropy in the superconducting state is determined from the resistivity measurements under magnetic field. This is compared to the anisotropy estimated from the normal state resistivity. The fairly good agreement of anisotropy ratio in the normal and superconducting state implies that electronic state of MgB2 can be analyzed within the three-dimensional effective mass model.

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KW - MgB

KW - Resistivity

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