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Z. Naturforsch. 67a, 498 – 508 (2012)
doi:10.5560/ZNA.2012-0052
Temperature Dependence of the Magnetoresistance Effect in Metals
Stanisław Olszewski
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
Received February 28, 2012 / revised May 15, 2011 / published online August 2, 2012
Reprint requests to: S. O.; E-mail: olsz@ichf.edu.pl
The paper examines a well-known experimental property of increase of the magnetoresistance effect in a metal observed with a decrease of the metal temperature. This property is explained by the fact that magnetoresistance is a quantity proportional to the relaxation time of the electric conduction of the metal sample which is a parameter observed in the absence of the magnetic field. Since the electric conduction, as well as the corresponding relaxation time, increase with the lowering of temperature, they provide us necessarily with an increase of magnetoresistance. The phenomenon is investigated quantitatively in this paper for numerous metal cases taken as examples.
Key words: Temperature Dependence; Magnetoresistance Effect; Metals.
PACS numbers: 72.15 Gd; 72.15 He; 72.15 Lh
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