POINT-CONTACT SPECTROSCOPY OF THE ELECTRON-PHONON INTERACTION IN THE LAYERED CONDUCTOR BETA-(BIS(ETHYLENEDITHIO)TETRATHIOFULVALENE)2I3

被引：2
|
作者：
KAMARCHUK, GV [1 ]
KHOTKEVICH, AV [1 ]
KOLESNICHENKO, YA [1 ]
POKHODNYA, KI [1 ]
TULUZOV, IG [1 ]
机构：
[1] UKRAINIAN ACAD SCI,INST SEMICOND,KIEV 252650,UKRAINE
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 19期
关键词：
D O I：
10.1088/0953-8984/6/19/011
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A theory of point contact (PC) spectroscopy of the electron-phonon interaction in layered conductors with a quasi-two-dimensional energy spectrum of charge carriers is developed. The predicted anisotropy of the PC spectra is observed on heterocontacts of Cu and the organic metal beta-(BEDT-TTF)2I3. Two types of PC spectrum are revealed, which correspond to different orientations of the contact axis. The spectrum measured on contacts with the current flow in the plane of the organic molecule layer display features caused by the interaction between the electrons and intramolecular vibrations. The spectra of the samples with the axis perpendicular to the BEDT-TIF layers have maxima reflecting the predominating contribution of the I3- anions in the processes of energy relaxation of the current carriers in such PCS.
引用
收藏
页码：3559 / 3566
页数：8
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