Annealing and irradiation studies of MoC
x
thin films |
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Authors: | E L Haase J Ruzicka |
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Affiliation: | (1) Kernforschungszentrum Karlsruhe, Institut für Nukleare Festkörperphysik, Karlsruhe, Federal Republic of Germany |
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Abstract: | On single-phase B1 molybdenum carbide thin films prepared by the rf sputtering technique at substrate temperatures between 40 and 800°C isochronous annealing and He-irradiation investigations were performed. The transition temperature to superconductivityT
c
,the lattice parametera
0, and the specific resistivity were measured as a function of annealing temperature and fluence, respectively. Both during annealing and irradiation MoC
x
behaves quite differently from typical refractory compounds such as NbC and NbN. During annealingT
c
drops pronouncedly between 250 and 400°C. The B1 structure transforms to -Mo2C between 600 and 900°C. During irradiationT
c
rises slightly and then drops by only 0.5 K. The lattice parametera
0 changes only by 0.2%.On leave of absence from the Institute of Physics, Czechoslovak Academy of Sciences, Prague, Czechoslovakia. |
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Keywords: | |
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