Low Temperature Physics: 37, 852 (2011); https://doi.org/10.1063/1.3670029 (4 pages)
Fizika Nizkikh Temperatur: Volume 37, Number 9-10 (September 2011), p. 1068-1072    ( to contents , go back )

Quadratic temperature dependence of magnetoresistivity of pure tungsten single crystals under static skin effect

V.V. Marchenkov

Institute of Metal Physics , S. Kovalevskoyi st. 18, Ekaterinburg 620990, Russia
E-mail: march@imp.uran.ru

International Laboratory of High Magnetic Fields and Low Temperatures, 53-421 Wroclaw, Poland
pos Анотація:

Reseived April 1, 2011

Abstract

The transverse magnetoresistivity of tungsten single crystals with residual resistivity ratio ρ293K / ρ4.2K of about 75000 was measured in the temperature interval from 2 to 75 K and in magnetic fields of up to 80 kOe. It is found that at low temperatures these “size” crystals display a quadratic temperature dependence of magnetoresistivity ρxx. It is shown that the observed quadratic dependence ρxx(T) appears under static skin effect and is a manifestation of the interference scattering mechanism electron–phonon–surface, similar to what happens in pure metals without a magnetic field. A qualitative explanation of the observed dependence is proposed.

PACS: 72.15.Gd Galvanomagnetic and other magnetotransport effects;
PACS: 75.47.Np Metals and alloys.

Key words: static skin effect, magnetoresistivity, tungsten single crystals.

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