Magnon component of the resistivity in single-crystal terbium-yttrium alloys

Journal Article · Wed Dec 01 04:00:00 EST 1976 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:7218862

Belov, K P; Nikitin, S A; Posyado, V P; Chuprikov, G E

The resistivity of crystals of terbium-yttrium alloys was investigated in a wide range of concentrations at temperatures from 4.2 to 400/sup 0/K. The magnon part of the resistivity was separated. The effective mass of the conduction electrons m/sup asterisk/and the s-f exchange parameter were calculated on the basis of the formulas of the indirect-exchange theory. A change was observed in the Fermi surface in the concentration region (40--50) at.%Y, thus indicating a strong connection between the structure of the Fermi surface and the magnetic properties of the terbium-yttrium alloys. It is shown that the residual resistivity due to the spin disorder rho/sub M//sup res/, greatly exceeds the electrostatic contribution to rho/sub res/.

• Research Organization: Moscow State University
• OSTI ID: 7218862
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 71:6; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
EFFECTIVE MASS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
EXCHANGE INTERACTIONS
FERMI LEVEL
INTERACTIONS
LOW TEMPERATURE
MAGNONS
MASS
MEDIUM TEMPERATURE
PHYSICAL PROPERTIES
QUASI PARTICLES
RARE EARTH ALLOYS
TERBIUM ALLOYS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
YTTRIUM ALLOYS