Chin. J. Semicond. > Volume 19 > Issue 11 > Article Number: 865

生长在尖晶石衬底上的GaN外延层的喇曼散射研究

李国华 , 韩和相 , 丁琨 , 汪兆平 and 段树坤

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Abstract: 在室温下测量了用MOVPE方法生长在尖晶石(MgAl2O4)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E2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A1和E2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

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History

Manuscript received: 18 August 2015 Manuscript revised: Online: Published: 01 November 1998

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