Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Meilikhov, E."'
Autor:
Meilikhov, E. Z., Farzetdinova, R. M.
We investigate the metal-insulator transition occurring in semiconductors with magnetic impurities when lowering temperature. In contrast to the usually considered percolation transition in the non-uniform medium induced by the localization of charge
Externí odkaz:
http://arxiv.org/abs/1009.0164
Autor:
Meilikhov, E. Z., Farzetdinova, R. M.
Publikováno v:
J. Appl. Phys., 107, 114314 (2010)
We consider magnetic properties of the planar structure consisting of a ferromagnetic metal, diluted magnetic semiconductor and the quantum well (by the example of the hybrid heterostructure Fe--Ga(Mn)As--InGaAs). In the framework of the mean-field t
Externí odkaz:
http://arxiv.org/abs/1004.4425
Autor:
Meilikhov, E. Z., Farzetdinova, R. M.
The continual model of the nonuniform magnetism in thin films and wires of a diluted magnetic semiconductor is considered with taking into account the finite spin polarization of carriers responsible for the indirect interaction of magnetic impuritie
Externí odkaz:
http://arxiv.org/abs/0903.1728
Autor:
Meilikhov, E. Z., Farzetdinova, R. M.
Magnetic properties of the planar structure consisting of a ferromagnetic metal and the diluted magnetic semiconductor are considered (by the example of the structure Fe/Ga(Mn)As, experimentally studied in [F. Maccherozzi, e.a., Phys. Rev. Lett., 101
Externí odkaz:
http://arxiv.org/abs/0903.1726
Autor:
Meilikhov, E. Z., Farzetdinova, R. M.
Nanosized spherical system of magnetic moments interacting indirectly via the RKKY mechanism is studied. The interaction energy that determines the temperature of the ferromagnetic ordering, depends strongly on the system size. Obtained in the mean-f
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609266
Autor:
Meilikhov, E. Z, Farzetdinova, R. M.
In the framework of the generalized mean field theory, conditions for arising the ferromagnetic state in a two-dimensional diluted magnetic semiconductor and the features of that state are defined. RKKY-interaction of magnetic impurities is supposed.
Externí odkaz:
http://arxiv.org/abs/cond-mat/0602416
Autor:
Meilikhov, E. Z., Farzetdinova, R. M.
For Small World Ising systems of different dimensions, "concentration" dependencies T_C(p) of the Curie temperature upon the fraction p of long-range links have been derived on a basis of simple physical considerations. We have found T_C(p) ~ 1/ln|p|
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505502
Autor:
Meilikhov, E. Z.
Publikováno v:
Physics Letters A, Vol 346/1-3, pp 193-203 (2005)
We investigate properties of two-dimensional finite-scale percolation systems whose size along the current flow is smaller than the perpendicular size. Successive thresholds of appearing multiple percolation channels in such systems have been determi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505409
We report on unique electronic properties in Fe-SiO2 nanocomposite thin films in the vicinity of the percolation threshold. The electronic transport is dominated by quantum corrections to the metallic conduction of the Infinite Cluster (IC). At low t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0010209
Autor:
Gurovich, B. A., Dolgy, D. I., Kuleshova, E. A., Velikhov, E. P., Ol'shansky, E. D., Domantovsky, A. G., Aronzon, B. A., Meilikhov, E. Z.
Key circumstance of radical progress for technology of XXI century is the development of a technique which provides controllable producing three-dimensional patterns incorporating regions of nanometer sizes and required physical and chemical properti
Externí odkaz:
http://arxiv.org/abs/cond-mat/0008198