Scanning tunneling microscopy of quasi-one-dimensional organic conductors
- 1 March 1991
- journal article
- research article
- Published by American Vacuum Society in Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures
- Vol. 9 (2) , 1017-1021
- https://doi.org/10.1116/1.585250
Abstract
We have used a variable temperature ultrahigh vacuum (UHV) scanning tunneling microscope to study the quasi-one-dimensional organic conductor, tetrathiafulvalene-tetracyanoquinodimethane. The experiment has been performed in air and UHV, at temperatures ranging from 10 to 300 K. High resolution images obtained both in air and UHV clearly revealed a one-dimensional structure. The molecular positions and orientations deduced from the real space images are in good agreement with the lattice parameters obtained from other experimental methods. Below 80 K, a commensurate 2k(F) charge density wave modulation in real space appeared, and its associated energy gap of about 100 mV was also observed at lower temperatures.Keywords
This publication has 1 reference indexed in Scilit:
- X-Ray-Diffuse-Scattering Evidence for a Phase Transition in Tetrathiafulvalene Tetracyanoquinodimethane (TTF-TCNQ)Physical Review Letters, 1975