Volume 81, Number 3, February 2008
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||19 December 2007|
Effect of electron interactions on the conductivity and exchange coupling energy of disordered metallic magnetic multilayer
A.F. Ioffe Physical-Technical Institute - 194021 St. Petersburg, Russia
2 Department of Physics, University of Utah - Salt Lake City, UT 84112, USA
Accepted: 21 November 2007
We consider the effect of electron-electron interactions on the current-in-plane (CIP) conductivity and exchange coupling energy of a disordered metallic magnetic multilayer. We analyze its dependence on the value of ferromagnetic splitting of conducting electrons and on ferromagnetic-layers relative magnetizations orientation. We show that the contribution to the CIP conductivity and exchange coupling energy as a periodic function of the angle of magnetizations relative orientation experience transition depending on the characteristic energies, i.e. ferromagnetic splitting of the conducting electrons and the Thouless energy of paramagnetic layer.
PACS: 71.10.Ca – Electron gas, Fermi gas / 75.47.-m – Magnetotransport phenomena; materials for magnetotransport
© EPLA, 2008
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