Spin switching: From quantum to quasiclassical approach

Autor:	B. Baxevanis, Alexander L. Chudnovskiy, Daniela Pfannkuche, Ch. Hübner
Rok vydání:	2014
Předmět:	Physics Open quantum system Spin dynamics Quantum dynamics Quantum mechanics Master equation Condensed Matter::Strongly Correlated Electrons Spin engineering Condensed Matter Physics Spin quantum number Quantum Electronic Optical and Magnetic Materials Spin-½
Zdroj:	physica status solidi (b). 251:1764-1776
ISSN:	0370-1972
DOI:	10.1002/pssb.201350225
Popis:	In this paper, we review the theory of spin switching for systems of different sizes, from a quantum mechanical master equation approach for small atomic clusters to the quasiclassical description of spin dynamics by a stochastic Landau–Lifshits–Gilbert equation in metallic nanoscale magnetic systems. We present characteristic results emphasizing the role of the quantum character of spin at different scales. Comparing the quantum mechanical and the quasiclassical approach to spin switching, we draw analogies between the factors affecting quantum and classical spin dynamics. We analyze assumptions used in each approach and emphasize the limits of applicability of the quantum mechanical and of the quasiclassical descriptions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b172c5df23194fb048607c37674efea7 https://doi.org/10.1002/pssb.201350225 Zobrazit plný text záznamu Plný text