Magnetic susceptibility and electrical resistivity of electrotransport purified scandium single crystals from ≈ 1 to 300 k

Abstract

The magnetic susceptibility of electrotransport purified Sc single crystals was measured from 0.7 to 295 K. Both the easy (χ a) and hard (χ c) directions were measured using a microcomputer controlled Faraday apparatus. Above 50 K the present results agree with earlier work on a less pure sample, but below 50 K the present results are lower by as much as 4%. In addition the maximum at ≈ 30 K and the minimum at ≈ 6 K are much more pronounced in the purer material, and the susceptibility increases rapidly as the temperature approaches 0 K. Electrical resistivity measurements were made on the same single crystals from 1.6 to 300 K. The resistance ratios were 365 for the a-axis crystal and 274 for the c-axis crystal. At 300 K, ρ a ≈ 2.5 ρ c.