| Issue |
Europhys. Lett.
Volume 54, Number 1, April 2001
|
|
|---|---|---|
| Page(s) | 105 - 111 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2001-00235-7 | |
| Published online | 01 December 2003 | |
Electron-electron interaction effects in magnetic layered structures
1
Chernovtsy Department of the Institute of Materials Science
Problems
Vilde 5, 58001 Chernovtsy, Ukraine
2
Department of Physics, A. M. University ul. Umultowska 85,
61-614 Poznań, Poland
and Institute of Molecular Physics, Polish Academy of Sciences
ul. M. Smoluchowskiego 17, 60-179 Poznań, Poland
Received:
9
October
2000
Accepted:
26
January
2001
We consider some peculiarities of the logarithmic electron-electron interaction corrections to conductivity, which can arise in magnetic quantum wells due to spin-splitting of energy levels. The matrix elements of Coulomb interaction include different screening contributions from spin-up and spin-down electrons, which can lead to anomalous behavior of the interaction constant when the width of a spin quantum well is changed. Our results explain qualitatively the physical origin of the recently observed anomalous behavior of the logarithmic term in electrical resistivity of Co/Cr/Ag/Co layered structures (Aliev F. G. et al., Phys. Rev. Lett., 78 (1997) 134).
PACS: 75.70.-i – Magnetic properties of thin films, surfaces and interfaces / 75.70.Cn – Interfacial magnetic properties (multilayers) / 73.20.Fz – Weak or Anderson localization
© EDP Sciences, 2001
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