Large magnetoresistance and critical spin fluctuations in Gdl(2) - art. no. 064425

Authors
Eremin, I Thalmeier, P Fulde, P Kremer, RK Ahn, K Simon, A
Citation
I. Eremin et al., Large magnetoresistance and critical spin fluctuations in Gdl(2) - art. no. 064425, PHYS REV B, 6406(6), 2001, pp. 4425
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6406
Issue
6
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010801)6406:6<4425:LMACSF>2.0.ZU;2-H
Abstract
The effect of the large negative magnetoresistance in layered ferromagnetic metal GdI2 has been explained on the basis of the s-f exchange model. Assu ming the Ornstein-Zernike form of the spin-spin correlation function for th e two-dimensional case, we calculate the resistivity in the vicinity of the ferromagnetic transition. The influence of the magnetic field was taken in to account via the generalized dynamical-scaling approach and molecular-fie ld approximation. The results are found to be in good agreement with experi ment.