Examination of the specific features of the electron density of states of weakly nonstoichiometric Fe–V–Al alloys through the analysis of low-temperature heat capacity


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Abstract

The results of a comparative study of low-temperature heat capacity and resistivity of weakly nonstoichiometric Fe–V–Al alloys with their composition varied (in iron, vanadium, and aluminum atoms individually) with respect to the stoichiometric Fe2Val alloy are reported. The electron density of states near the Fermi energy is estimated for the studied alloys. The data confirming the presence of a narrow pseudogap at the Fermi level in alloys enriched with vanadium and the lack of such a pseudogap in alloys enriched with iron or aluminum are obtained.

About the authors

A. T. Lonchakov

Mikheev Institute of Metal Physics, Ural Branch

Author for correspondence.
Email: lonchakov@imp.uran.ru
Russian Federation, Yekaterinburg, 620990

V. V. Marchenkov

Mikheev Institute of Metal Physics, Ural Branch

Email: lonchakov@imp.uran.ru
Russian Federation, Yekaterinburg, 620990

S. M. Podgornykh

Mikheev Institute of Metal Physics, Ural Branch

Email: lonchakov@imp.uran.ru
Russian Federation, Yekaterinburg, 620990

V. I. Okulov

Mikheev Institute of Metal Physics, Ural Branch

Email: lonchakov@imp.uran.ru
Russian Federation, Yekaterinburg, 620990

K. A. Okulova

Mikheev Institute of Metal Physics, Ural Branch

Email: lonchakov@imp.uran.ru
Russian Federation, Yekaterinburg, 620990

T. E. Govorkova

Mikheev Institute of Metal Physics, Ural Branch

Email: lonchakov@imp.uran.ru
Russian Federation, Yekaterinburg, 620990

S. M. Emel’yanova

Mikheev Institute of Metal Physics, Ural Branch

Email: lonchakov@imp.uran.ru
Russian Federation, Yekaterinburg, 620990

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