ELECTRON-NUCLEAR-NUCLEAR TRIPLE RESONANCE OF CIS-RICH POLYACETYLENE - EVIDENCE FOR NEGATIVE SPIN SITES OF SOLITON

被引：4

作者：

KURODA, S ^{[1
]}

SHIRAKAWA, H ^{[1
]}

机构：

[1] UNIV TSUKUBA,INST MAT SCI,TSUKUBA,IBARAKI 305,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 77卷 / 12期

关键词：

D O I：

10.1016/0038-1098(91)90350-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Electron-nuclear double resonance (ENDOR) and electron-nuclear-nuclear triple resonance (TRIPLE) spectra of stretch-oriented cis-rich polyacetylene at low temperatures show clear spectral turning points when the external magnetic field is parallel to the stretch direction. The difference between ENDOR and TRIPLE spectra, depending on the pumping frequency of the latter, provide direct evidence that the turning points are associated with the negative spin sites of the soliton, arising from electron correlation effect, as predicted from our previous ENDOR analysis.

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页码：937 / 941

页数：5

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