Effect of electron interactions on the conductivity and exchange coupling energy of disordered metallic magnetic multilayer
Abstract
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 2π→π transition depending on the characteristic energies, i.e. ferromagnetic splitting of the conducting electrons and the Thouless energy of paramagnetic layer.
- Publication:
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EPL (Europhysics Letters)
- Pub Date:
- February 2008
- DOI:
- 10.1209/0295-5075/81/37002
- arXiv:
- arXiv:cond-mat/0504754
- Bibcode:
- 2008EL.....8137002Z
- Keywords:
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- Condensed Matter - Mesoscale and Nanoscale Physics;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 6 pages, 1 figure