Browsing by Author "Chen, Chih-Chang"

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Superparamagnetism Found in Diluted Magnetic Semiconductor Nanowires: Mn-Doped CdSe
(2008-11-20)
Chen, Chih-Chang
;
Hsu, Yung-Jung
;
Lin, Yi-Feng
;
Lu, Shih-Yuan
;
材料科學與工程學系
Diluted magnetic semiconductor (DMS) nanowires (NWs), Mn-doped CdSe, were successfully prepared in a gold-catalyzed vapor-transport deposition process. It was demonstrated for the first time that upon incorporation of Mn of very limited concentrations, the CdSe NWs exhibited enhanced ferromagnetism at T < 40 K and turned superparamagnetic at relatively high temperatures. This finding would extend the application range of DMS NWs into the biolabeling and bioimaging fields.