Open AccessTransport behavior and critical current densities in MgB2 wires
Author(s) -
A. K. Pradhan,
Yan Feng,
Yong Zhao,
N. Koshizuka,
Ling Zhou,
P. X. Zhang,
X. H. Liu,
Ping Ji,
S. J. Du,
C. F. Liu
Publication year - 2001
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.1403278
Subject(s) - electrical resistivity and conductivity , condensed matter physics , materials science , anisotropy , critical current , magnetization , magnetic field , critical field , current density , superconductivity , conductivity , current (fluid) , electrical engineering , chemistry , physics , thermodynamics , optics , quantum mechanics , engineering
We report on the transport and magnetization properties of MgB2 wires fabricated by a powder-in-tube ~PIT! technique. Temperature and magnetic-field-dependent resistivity displays a high conductivity and upper critical field Hc2 generally observed in dense samples. The electronic mass anisotropy g'1.360.15 predicts some texturing in the wire. Our data on transition temperature TC , Hc2 , and both magnetic and transport critical current density Jc indicate that MgB2 can be manufactured in a wire form using a PIT technique and required engineering Jc can be achieved on further optimization
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