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测量了助熔剂法和提拉法生长的钆镓石榴石单晶的喇曼光谱。识别了该晶体的喇曼活性声子。和文献[6]相比,本文得到了更完全的结果。我们也比较了两种方法生长的晶体的喇曼谱,声子模式彼此一致。发现一些不同的谱线,这被识别为不同稀土掺杂离子的荧光谱线。The Raman spectrum of Gd3Ga5O12 single crystals grown by both flux and pulling methods are measured. The different Raman phonons, are identified. Comparing with ref. [6], we get more complete results. The Raman spectrum of the two kinds of crystals grown by different methods are also compared, the phonon modes are in agreement with each other. The observed different lines are interpreted as fluorescence of contaminating rare earth ions introduced possibly during the sample preparation.
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