Low Temperature Physics: 41, 150 (2015); https://doi.org/10.1063/1.4908195
Fizika Nizkikh Temperatur: Volume 41, Number 2 (February 2015), p. 196-201    ( to contents , go back )

New manifestations of pseudogap state and electron spin scattering in low-temperature thermal properties of iron–vanadium–aluminum alloys of almost stoichiometric composition

A.T. Lonchakov, V.V. Marchenkov, V.I. Okulov, K.A. Okulova, T.E. Govorkova, and S.M. Podgornykh

Institute of Metal Physics , S. Kovalevskoyi st. 18, Ekaterinburg 620137, Russia
E-mail: okulov@imp.uran.ru
pos Анотація:

Received December 5, 2014

Abstract

The temperature dependences of heat capacity and thermal conductivity and the effect of changing thermal conductivity with magnetic field strength have been studied in iron–vanadium–aluminum alloys, that exhibit anomalous electron properties for certain compositions near the stoichiometric one. Based on the previous works, we have developed some ideas of specific peculiarities of electron structure of these alloys (narrow pseudogap, strong spin scattering et al.) which are of interest both for promising revealing new materials and their technical applications.

PACS: 71.20.Be Transition metals and alloys;
PACS: 72.15.Eb Electrical and thermal conduction in crystalline metals and alloys;
PACS: 75.20.En Metals and alloys.

Key words: iron–vanadium–aluminum alloy, heat capacity, thermal conductivity, spin scattering, pseudogap, localized magnetic moment.

Published online: December 22, 2014

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