Strain induced super-paramagnetism in Cr2O3 in the ultra thin film limit

Autor:	Yuan Cao, Peter A. Dowben, Bin Dong, Haseeb Kazi, Takashi Komesu, Jack L Rodenburg, M. Sky Driver, Frank L. Pasquale, Jeffry A. Kelber, Iori Tanabe
Rok vydání:	2015
Předmět:	Paramagnetism Materials science Condensed matter physics Strain (chemistry) Metallurgy Sapphire Antiferromagnetism Thin film Epitaxy Néel temperature Chromia
Zdroj:	MRS Proceedings. 1729:79-83
ISSN:	1946-4274 0272-9172
Popis:	Ultra thin films of chromia (Cr2O3), less than 3 nm thick, grown epitaxial on α-Al2O3 (sapphire), and are thus compressively strained in-plane. The resulting films show evidence of some magnetic ordering above the Néel temperature of chromia (307 K). The observed higher temperature hysteresis effect observed are very likely a strain effect, and not associated with the typical antiferromagnetic ordering expected of chromia.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fe00df456ed3dc53eddf5e8ea62c3fef https://doi.org/10.1557/opl.2015.5 Zobrazit plný text záznamu Full text from SpringerLink