Discrete limit of quantum evolution supergenerator of superparamagnetic system

Author

Buslov, V.A.

Author_Institution

Dept. of Computational Phys., St. Petersburg State Univ., Russia

fYear

2002

fDate

2002

Firstpage

54

Lastpage

63

Abstract

The supergenerator of superparamagnetic system quantum evolution is investigated in the discrete orientation model (DONI). It is shown that the generator is J-self-adjoint one at the case of potential drift field agreed upon magnetic anisotropy of the sample investigated. Perturbation theory is used for spectral analysis. The qualitative dependence of resonance absorption spectrum on the relation between quantum and stochastic parameters is demonstrated.

Keywords

Mossbauer effect; magnetic anisotropy; perturbation theory; superparamagnetism; DONI; J-self-adjoint generator; discrete orientation model; magnetic anisotropy; perturbation theory; potential drift field; quantum evolution supergenerator discrete limit; quantum parameters; relaxation Mossbauer spectra; resonance absorption spectrum; stochastic parameters; superparamagnetic system quantum evolution; Eigenvalues and eigenfunctions; Electronic mail; Magnetic anisotropy; Magnetic resonance; Magnetization; Perpendicular magnetic anisotropy; Physics computing; Shape; Spectral analysis; Stochastic resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Day on Diffraction, 2002. Proceedings. International Seminar

Print_ISBN

5-7997-0469-X

Type

conf

DOI

10.1109/DD.2002.1177893

Filename

1177893