Controlling exchange bias in FeMn with Cu

Autor:	Hillary Kirby, Igor V. Roshchin, Pavel N. Lapa, Casey W. Miller, Dogan Kaya, Priyanga Jayathilaka
Rok vydání:	2013
Předmět:	Condensed Matter::Materials Science Magnetization Hysteresis Materials science Exchange bias Condensed matter physics Magnetic moment Ferromagnetism General Physics and Astronomy Antiferromagnetism Coercivity Magnetic hysteresis
Zdroj:	Journal of Applied Physics. 113:17D717
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.4798310
Popis:	To study the effect of non-magnetic layer (Cu) on magnetic properties of antiferromagnetic FeMn, multilayers of Ta(5 nm)/[FeMn(t)/Cu(5 nm)]10/Ta(5 nm), where t is varied in the range of 5–15 nm, are fabricated by a combination of RF and DC magnetron sputter deposition. Magnetization curves for these samples exhibit magnetic hysteresis, and when the samples are cooled in an applied magnetic field, the hysteresis loops are shifted. This shift is attributed to an “intrinsic” exchange bias effect (i.e., it is observed without a separate ferromagnetic layer). Presented temperature and thickness dependences of the coercive field, magnetic moment, and exchange bias field provide insights into the origin and mechanism of the observed intrinsic exchange bias.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7f0eb58b79343cf89fcba80c9e6b8fa2 https://doi.org/10.1063/1.4798310 Zobrazit plný text záznamu