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2 research outputs found
GaN外延层的拉曼散射研究
Author
李国华
段树琨
+3 more
汪兆平
王晓亮
韩和相
Publication venue
Publication date
01/01/1997
Field of study
No full text
测量了用MOCPE方法生长在尖晶石衬底上的GaN外延层和用MBE方法生长在蓝宝石衬底上的GaN外延层的喇曼散射,测量在室温下进行
Knowledge Repository of SEMI,CAS
生长在尖晶石衬底上的GaN外延层的喇曼散射研究
Author
丁琨
李国华
+3 more
段树坤
汪兆平
韩和相
Publication venue
Publication date
01/01/1998
Field of study
No full text
在室温下测量了用MOVPE方法生长在尖晶石(MgAl_2O_4)衬底上的GaN外延层的一阶喇曼光谱。应用各种背散射和90°散射配置,测得了除低频E_2模外所有GaN的喇曼活性光学声子模。并且在X(Z,X)Z和X(Y,Y)Z配置下观测到了由A_1和E_2模混合形成的准TO和准LO模。所得结果与群论选择定则预计的一致
Knowledge Repository of SEMI,CAS