ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Amorphous oxide thin films of Fe2O3-R2O3 (R = La, Gd and Tb) systems have beendeposited on silica glass substrates by using a radio frequency sputtering method, and magneticproperties of the thin films have been examined. The Fe2O3-La2O3 thin films exhibit cusp-likemaxima of dc magnetic susceptibility in their temperature dependences as well as magnetic aging andmemory effects characteristic of typical spin glasses. For Fe2O3-Gd2O3 and Fe2O3-Tb2O3 systems,magnetic moments of iron ions take part in formation of a spin glass state, as indicated by themagnetic aging effects, while those of rare-earth ions remain to be in a paramagnetic state even atvery low temperatures
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.39-40.207.pdf
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