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EFFECT OF TEMPERATURE ON LIBRON FREQUENCIES IN MOLECULAR-CRYSTALS - IMPLICATIONS FOR TTF-TCNQ

被引：53
作者：
ZALLEN, R
CONWELL, EM
机构：
[1] Xerox Webster Research Center, Webster
来源：
SOLID STATE COMMUNICATIONS | 1979年 / 31卷 / 08期
关键词：
D O I：
10.1016/0038-1098(79)90252-7
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Results for the effect of pressure and oemperature on lattice-phonon frequencies in six crystals (As4S4, S8, S4N4, C10H8, C14H10, C16H10) have been analyzed to separate the phonon-excitation-driven (explicit") and the thermal-expansion-driven ("implicit") contributions to dv/dT. The data establish that the volume-driven implicit effect dominates the temperature dependence of external-mode frequencies in molecular crystals. This finding has a bearing upon recent proposals for the role of librons in the electron transport of TTF-TCNQ. © 1979."
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页码：557 / 561
页数：5
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