Physical and chemical properties of nanostructured CoO–AlOx granular films

Autor:	Run-Sheng Zhai, Chien-Kui Hsu, Jen-Jen Lin, T.J. Chuang
Rok vydání:	2004
Předmět:	Aluminium oxides Chemical state Nanostructure X-ray photoelectron spectroscopy Magnetoresistance Chemistry Sputtering Transmission electron microscopy Nano Analytical chemistry General Materials Science General Chemistry Condensed Matter Physics
Zdroj:	Journal of Physics and Chemistry of Solids. 65:1333-1336
ISSN:	0022-3697
DOI:	10.1016/j.jpcs.2004.03.002
Popis:	A series of nano CoO–AlO x granular films were prepared by Ar–O 2 reactive rf sputtering and their resistive and magnetoresistive properties were measured for studying the spin-dependent properties. Transmission electron microscopy and X-ray photoelectron spectroscopy are also utilized to investigate the structures and chemical states of these samples. Based on our results, the particles of CoO with radius around 2 nm could be magnetic at room temperature and provide a large tunneling magnetoreststance of −6% through the AlO x barrier.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8fb8ddc88bd4b7fe11c30b535fcb74dd https://doi.org/10.1016/j.jpcs.2004.03.002 Zobrazit plný text záznamu Full Text from ScienceDirect