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Dependence of the transport properties on the long range order of β-phase Co[sub 0.50]Ti[sub 0.50] alloy films.
- Source :
-
Journal of Applied Physics . 3/15/2001, Vol. 89 Issue 6, p3315. 4p. 1 Chart, 3 Graphs. - Publication Year :
- 2001
-
Abstract
- The influence of the structural disorder on the transport properties of Co[sub 0.50]Ti[sub 0.50] alloy films in a temperature range of 4.2-300 K has been investigated without and with a magnetic field of 0.5 T. The absence of translational invariance in a disordered state leads to an increase in the resistivity and causes a change from the positive to negative temperature coefficient of resistance. This fact is explained by the partial localization of electronic states near the Fermi level. It was established that a partial structural disordering enhances the role of the electron-phonon-vibrating impurity scattering in the transport properties and also makes the spin-diffusive scattering rather noticeable. The appearance of a low-temperature resistivity minimum for the disordered Co[sub 0.50]Ti[sub 0.50] alloy film arises from the quantum corrections to the electron-electron interactions in the presence of weak localization. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 89
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 4713212
- Full Text :
- https://doi.org/10.1063/1.1346649