Abstract
Knight-shiftK and susceptibilityχ have been investigated on single-crystals of vanadium and niobium between 4 K and 290 K.
In the case ofV the changes ofK andχ are found to be of opposite sign and proportional toT 2 with good approximation. This can be explained by theT-dependence of spin-paramagnetism of 3d-electrons. The hyperfine field due to oned-electron spin is found to be — 90 kG. Small deviations from theT 2-law are explained by minor changes in the orbital susceptibility, which gives the main constituents toK andχ.
In the case of Nb onlyχ is found to be proportional toT 2. TheT-dependence ofK is very small and shows a maximum at 140 K. This can be explained by theT-dependence of spinparamagnetism of 4d-electrons as well as 5s-electrons.
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Hechtfischer, D. Temperaturabhängigkeit von Knight-shift und Suszeptibilität von Vanadium und Niob. Z Physik B 23, 255–264 (1976). https://doi.org/10.1007/BF01318967
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DOI: https://doi.org/10.1007/BF01318967