Optimization of magnetic properties of Co∕Pd multilayers by applying a large persistent biaxial stress

Autor:	Ulrich Herr, Senthilnathan Mohanan
Rok vydání:	2007
Předmět:	Materials science Condensed matter physics Hydrogen General Physics and Astronomy Biaxial tensile test chemistry.chemical_element Magnetostriction Substrate (electronics) Coercivity Magnetic anisotropy Nuclear magnetic resonance Ferromagnetism chemistry Anisotropy
Zdroj:	Journal of Applied Physics. 102:093903
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.2802993
Popis:	We report about optimization of the effective perpendicular magnetic anisotropy (Keff) of [Pd(0.98nm)∕Co(tnm)]30 multilayers by applying an in-plane biaxial tensile stress by loading the Ta substrate with hydrogen. The stress induced anisotropy enhances the Keff, which in turn increases the coercive field and the squareness of the perpendicular magnetization curves. A quantitative analysis of the data using a simple model yields magnetostriction constants for the [Pd(0.98nm)∕Co(tnm)]30 multilayers which are in good agreement with the literature values. We conclude that the Keff can be significantly enhanced by applying persistent in-plane biaxial tensile stress.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9d7e411bfc0bbc4470cc785a2fc53bb https://doi.org/10.1063/1.2802993 Zobrazit plný text záznamu