Structure and magnetic properties of exchange-biased polycrystalline Fe/MnPd bilayers

Autor:	Wen-shan Zhan, M. Rickart, Xuliang Chen, B. F. P. Roos, A. Frank, Sergej O. Demokritov, Yan-kun Tang, Burkard Hillebrands, B. Q. Liang, M. Bauer, X. H. Zhou, Tim Mewes
Rok vydání:	2000
Předmět:	Condensed Matter::Materials Science Magnetic anisotropy Materials science Fabrication Condensed matter physics Field (physics) Angular dependence Crystallite Coercivity Thin film Anisotropy
Zdroj:	Physical Review B. 62:8654-8657
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.62.8654
Popis:	We report the fabrication of polycrystalline Fe/MnPd bilayers, which show the exchange-bias effects. We show that the exchange-bias effect, described by unidirectional anisotropy, is also accompanied by induced uniaxial and fourfold in-plane anisotropy contributions in the system. Using the Stoner-Wohlfarth model, all in-plane anisotropy contributions to the total free energy are determined for the polycrystalline samples from the fit of the in-plane angular dependence of H-eb and the coercivity H-c. A mechanism explaining the presence of the induced higher-order anisotropy contributions in an exchange-bias system is proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aa1d4a638353cdfa85e6c12c5f546169 https://doi.org/10.1103/physrevb.62.8654 Zobrazit plný text záznamu