Electrical resistivity of vanadium of various purities in the temperature range 4.2−47 °K
Β. N. AleksandrovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRE. D. SemenovaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRO. I. PetrovaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRB. P. ChernyiPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRV.M. AzhazhaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR
ABI
Аннотация
The temperature dependence of electrical resistivity in four specimens of vanadium with δ0=R0/R293=6.6⋅10−4−4.4⋅10−2 was studied in the temperature range 4.2−47 °K. It was found that from 4.2 to 22 °K ρ(T)∼T3 and in the range 22−58 °K ρ(T)∼α T2 + βT4 or ρ(T)∼ T3.75−3.4. In low purity specimens deviations from Mathiessen’s law were observed, increasing with growth in temperature and relative residual resistivity δ0.
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