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Fluctuation Magnetoconductance in MgB2

W. N. Kang·Kijoon H. P. Kim·Hyeong-Jin Kim·Eun-Mi Choi·Min-Seok Park·Mun-Seog Kim·Zhonglian Du·Chang Uk Jung·Kyung Hee Kim·Sung-Ik Lee·Mi-Ock Mun
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Abstract

We report fluctuation magnetoconductance in a MgB2 superconductor prepared under a high pressure of 3 GPa. This excess magnetoconductance, $Δσ(H)$, follows the three-dimensional scaling function for the critical fluctuations proposed by Ullah and Dorsey. This feature is inferred to originate from the isotropic nature of the MgB2 compound.

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W. N. Kang, Kijoon H. P. Kim, Hyeong-Jin Kim, Eun-Mi Choi, Min-Seok Park, Mun-Seog Kim, Zhonglian Du, Chang Uk Jung, Kyung Hee Kim, Sung-Ik Lee, Mi-Ock Mun. 2001-03-07. Fluctuation Magnetoconductance in MgB2. https://arxiv.org/abs/cond-mat/0103161

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