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利用显微激光拉曼光谱法对掺氮6H-SiC单晶中的寄生多型体进行了鉴别,结果表明其中有4H-SiC和15R-SiC两种寄生多型体.不同SiC多型体的纵光学声子与等离子体激元的耦合模(LOPC模)表明:在掺氮6H-SiC单晶的生长条件下,6H-SiC的掺氮效应与4H-SiC存在明显差别,而与15R-SiC的掺氮效应相似.

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