TY - JOUR
T1 - Superconducting fluctuation magnetoconductance in a tungsten carbide film
AU - Rosenbaum, Ralph
AU - Hsu, Shih Ying
AU - Chen, Jing Yin
AU - Lin, Yong Han
AU - Lin, Juhn Jong
PY - 2001/11/5
Y1 - 2001/11/5
N2 - Magnetoconductance (MC) measurements have been performed on a 2140 Å thick tungsten carbide film at temperatures very close to the superconducting transition temperature Tc of the film. The data are dominated by superconducting fluctuations. A novel three-dimensional phenomenological model is proposed to explain the MC data, yielding good fits. The Larkin beta factor, ΒLarkin, appeared as a fitting parameter. An expression proposed by Larkin for βLarkin failed badly for temperatures extremely close to Tc. But at intermediate and high temperatures compared to Tc, Larkin's expression gave very good agreement in fits to the MC data. At temperatures very close to Tc, a crossover from three dimensions to two dimensions was observed in the behaviour of the MC of the film.
AB - Magnetoconductance (MC) measurements have been performed on a 2140 Å thick tungsten carbide film at temperatures very close to the superconducting transition temperature Tc of the film. The data are dominated by superconducting fluctuations. A novel three-dimensional phenomenological model is proposed to explain the MC data, yielding good fits. The Larkin beta factor, ΒLarkin, appeared as a fitting parameter. An expression proposed by Larkin for βLarkin failed badly for temperatures extremely close to Tc. But at intermediate and high temperatures compared to Tc, Larkin's expression gave very good agreement in fits to the MC data. At temperatures very close to Tc, a crossover from three dimensions to two dimensions was observed in the behaviour of the MC of the film.
UR - http://www.scopus.com/inward/record.url?scp=0035813666&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/13/44/316
DO - 10.1088/0953-8984/13/44/316
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AN - SCOPUS:0035813666
SN - 0953-8984
VL - 13
SP - 10041
EP - 10056
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 44
ER -