Antiferromagnetic interlayer coupling in Fe/V and Fe/Cr
- Departamento de Fisica Teorica, Universidad de Valladolid, Spain (ES)
- Departamento de Fisica Teorica, CINVESTAN-IPN, Apdo. 14-740, Mexico, (Mexico)
- IPCMS, Universite Louis Pasteur, 4 rue Blaise Pascal, 67070 Strasbourg, (France)
- Laboratoire de Physique des Solides, BP 239, 54506 Vandoeuvre-les Nancy, (France)
Antiferromagnetic (AF) coupling between Fe and V atoms is observed experimentally at the Fe/V and Fe/Cr interfaces. In the self-consistent tight-binding derivation of the unrestricted approximation of the Hubbard Hamiltonian, we have investigated Fe{sub 3}V{sub {ital n}} ({ital n}=1--5) superlattices and Fe{sub 3}V{sub {ital n}} ({ital n}=1--5) films. In all cases one finds an AF coupling between Fe and V together with a decreasing oscillation of the induced magnetic moment on the V atoms when the distance from Fe increases. The distributions of local magnetic moments on Fe and Cr layers in Fe{sub 3}Cr{sub {ital n}} ({ital n}=3--5) superlattices have been determined self-consistently. Both AF and ferromagnetic ({ital F}) coupling between Fe layers separated by Cr have been studied. In all cases one finds strong AF couplings between Fe and Cr nearest neighbors with an important increase of the Cr magnetic moment at the interface as compared to the Cr bulk value.
- OSTI ID:
- 5564684
- Journal Information:
- Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 69:8; ISSN 0021-8979; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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