The microwave dielectric constant and conductivity of MEM(TCNQ)₂ were studied in the neighbourhood of the monomer to dimer transition at 61°C using cavity-perturbation techniques at 9 GHz. The conductivity was found to be in general agreement with four-probe d.c. results. Thus, doubts about the reliability of the d.c. measurements above the destructive transition have been removed.
The complex dielectric constant of TTF-TCNQ at liquid helium temperatures was studied using dielectric resonance techniques. Some anomalies regarding the interpretation of the dielectric resonance mode plots were resolved. Values for Є’ of (3.0±0.4)X10³ and for Є’of greater than 9 were implied by the results.
Finally, preliminary results and proposed directions for a bolometric absorption measurement in TTF-TCNQ in the microwave bands are presented. This technique may prove useful for the direct observation of the pinned charge density wave in TTF-TCNQ. / Science, Faculty of / Physics and Astronomy, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/22218 |
| Date | January 1979 |
| Creators | Morrow, Michael Robert |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
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