Open AccessCarbohydrate doping to enhance electromagnetic properties of MgB2 superconductors
Author(s) -
Jung Ho Kim,
S.H. Zhou,
Md. Shahriar A. Hossain,
A. V. Pan,
Shi Xue Dou
Publication year - 2006
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 - 10.1063/1.2358947
Subject(s) - doping , superconductivity , materials science , microstructure , condensed matter physics , expansive , critical field , chemical engineering , composite material , optoelectronics , physics , compressive strength , engineering
The effect of carbohydrate doping on lattice parameters, microstructure, Tc, Jc, Hirr, and Hc2 of MgB2 has been studied. In this work the authors used malic acid as an example of carbohydrates as an additive to MgB2. The advantages of carbohydrate doping include homogeneous mixing of precursor powders, avoidance of expansive nanoadditives, production of highly reactive C, and significant enhancement in Jc, Hirr, and Hc2 of MgB2, compared to undoped samples. The Jc for MgB2+30wt% C4H6O5 sample was increased by a factor of 21 at 5K and 8T without degradation of self-field Jc.
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