CUED Publications database

Magnetotransport study of MgB2 superconductor

Mucha, J and Pȩkala, M and Szydlowska, J and Gadomski, W and Akimitsu, J and Fagnard, J-F and Vanderbemden, P and Cloots, R and Ausloos, M (2003) Magnetotransport study of MgB2 superconductor. Superconductor Science and Technology, 16. pp. 1167-1172. ISSN 0953-2048

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Abstract

Precise magnetotransport studies of heat and charge carriers in polycrystalline MgB2 show that magnetic fields up to 8 T remarkably influence electrical resistivity, thermoelectric power and thermal conductivity. The superconducting transition temperature shifts from 39 K to 19 K at 8 T as observed on electric signals. The temperature transition width is weakly broadened. Electron and phonon contributions to the thermal conductivity are separated and discussed. The Debye temperature calculated from a phonon drag thermoelectric power component is inconsistent with values derived through other effects.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:28
Last Modified: 08 Dec 2014 02:25
DOI: 10.1088/0953-2048/16/10/308