Downshift of Raman peak in diamond powders

Zhao XZ.; Roy R.; White WB.Cherian KA.

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Downshift of Raman peak in diamond powders

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Results are presented on the influence of the size of diamond powders and the laser power on the main Raman line. These results show conclusively that there is a consistent and systematic, reversible, downshift with both decrease of powder size, and increase of power. The shift can be explained by local heating of about 500 degrees C in the extreme case. Its significance applies to interpretation of the alleged;"downshifting" of the 1332 cm(-1) Line in all diamond research. In the future, the grain size, the thermal contact, and the beam power must be carefully monitored in reporting and interpreting any frequency shifts. References: 15

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来源
《Journal of Materials Research》 |1998年第7期|1974-1976|共3页
作者
Zhao XZ.; Roy R.; White WB.Cherian KA.;
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作者单位

Penn State Univ, Intercoll Mat Res Lab, University Pk, PA 16802, USA, .;

atkelco.com;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
Films; Spectroscopy; Temperatures; Scattering; Growth;

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Downshift of Raman peak in diamond powders

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