[Zurück]

E. Gratz, H. Nowotny, J. Enser, E. Bauer, K. Hense:
"Magnetoresistance in RCo₂ spin-fluctuation systems";
Journal of Magnetism and Magnetic Materials, 272-276 (2004), S. e441 - e442.

Magnetoresistance in RCo2 spin-fluctuation systems

E. GratzE-mail The Corresponding Author, a, H. Nowotnyb, J. Ensera, E. Bauera and K. HenseCorresponding Author Contact Information, E-mail The Corresponding Author, a

a Institute for Solid State Physics, TU, Wien, Wiedner Hauptstr. 8-10, Austria
b Institute for Theoretical Physics, TU, Wien, Austria

Available online 10 January 2004.


Abstract

The effect of the spin fluctuations on the field and temperature dependence of the magnetoresistance in ScCo2 and LuCo2 was studied. The experimental data where explained assuming two competing mechanisms determining the magnetoresistance of these substances. One is the `normal magnetoresistance’ caused by the influence of the Lorentz force on conduction electron trajectories. The other is due to the suppression of the spin fluctuations caused by an external magnetic field. This interplay give rise to a pronounced drop of the magnetoresistance towards the lower temperature range.

Author Keywords: RCo2; Spin fluctuations; Magnetoresistance

71.45.Gm; 72.10.−d; 76.30.Lh

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC04970237

doi:10.1016/j.jmmm.2003.12.529