Electronic transitions in near-equiatomic vanadium-ruthenium alloys

C. W. Chu, E. Bucher, A. S. Cooper, J. P. Maita

研究成果: Article同行評審

34 引文 斯高帕斯(Scopus)

摘要

The electrical resistivity, the magnetic susceptibility, and the Knight shift of V51 have been studied as a function of temperature in near-equiatomic V-Ru alloys. Electronic transitions were observed as evidenced by the following anomalies: Over a narrow temperature range, the resistivity increases sharply, the susceptibility decreases rapidly, and the Knight shift increases during cooling. At the same time, a tetragonal crystallographic distortion occurs, as found by Marezio et al. The low-temperature specific heat and the superconducting transition temperature were found to vary drastically over the concentration region of interest in agreement with the results of previous work. These changes in electronic properties can be consistently interpreted as arising from a substantial reduction in the Fermi-surface area and of the effective number of carriers associated with the tetragonal distortion. This further suggests that the tetragonal phase is stabilized by the reduction of the electronic free energy.

原文English
頁(從 - 到)320-326
頁數7
期刊Physical Review B
4
發行號2
DOIs
出版狀態Published - 1971

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學

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