%0 Journal Article
%T STUDY ON RAMAN SPECTRA OF GaMnAs<br>GaMnAs的Raman光谱研究
%A MA Bao-Shan
%A WANG Wen-Jie
%A SU Fu-Hai
%A DEN Jia-jun
%A JIANG Chun-Ping
%A LIU Hai-Lin
%A DING Kun
%A ZHAO Jian-Hu
%A LI Guo-Hua
%A <br>马宝珊
%A 王文杰
%A 苏付海
%A 邓加军
%A 蒋春萍
%A 刘海林
%A 丁琨
%A 赵建华
%A 李国华
%J 红外与毫米波学报
%D 2006
%I Science Press
%X Raman spectra of diluted magnetic semiconductor GaMnAs alloy were reported.The coupled plamon-LO-phonon(CPLP) mode has LO-like polarization properties.With increasing Mn concentration,the CPLP mode shifts to low frequency.The hole density in the alloy was determined from the ratio of the intensity of the CPLP mode to that of the unscreened LO mode in the depletion layer.The hole density increases with the increase of the Mn composition.The Raman spectra of GaMnAs alloy were measured at different temperature.It is confirmed that the hole density in the alloy increases with the increase of the temperature.
%K GaMnAs
%K Raman spectrum
%K coupled plamon-LO-phonon mode
%K hole density<br>GaMnAs
%K 拉曼光谱
%K 等离激元与声子耦合模
%K 空穴浓度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=820EDAD2F86CA3CA&yid=37904DC365DD7266&vid=C5154311167311FE&iid=38B194292C032A66&sid=334E2BB8B9A55ABB&eid=D2742EEE6F4DF8FE&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=0&reference_num=14