Title :
Discrete limit of quantum evolution supergenerator of superparamagnetic system
Author_Institution :
Dept. of Computational Phys., St. Petersburg State Univ., Russia
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;
Conference_Titel :
Day on Diffraction, 2002. Proceedings. International Seminar
Print_ISBN :
5-7997-0469-X
DOI :
10.1109/DD.2002.1177893
