Fluctuation mechanism for biquadratic exchange coupling in magnetic multilayers

Autor:	J. C. Slonczewski
Rok vydání:	1991
Předmět:	Coupling Condensed Matter::Materials Science Magnetization Materials science Condensed matter physics Ferromagnetism Oscillation Phenomenological model Exchange interaction Monolayer General Physics and Astronomy Inductive coupling
Zdroj:	Physical review letters. 67(22)
ISSN:	1079-7114
Popis:	We show how spatial fluctuations of chromium thickness amounting to one atomic monolayer account phenomenologically for the biquadratic magnetic coupling recently reported in epitaxial Fe/Cr/Fe trilayers. Corresponding fluctuations of the short-period oscillatory term of conventional exchange coupling induce static waves of magnetization whose energy has the observed biquadratic form. An existing calculation of conventional exchange and its recent direct measurements in highly ordered trilayers support our interpretation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::653d5184b82de44248ca812147ebfe51 https://pubmed.ncbi.nlm.nih.gov/10044659 Zobrazit plný text záznamu