Fermi Surface Study of β′′-(BEDT-TTF)(TCNQ) by Magnetooptical Measurements

We have performed magnetooptical measurements of β′′-(BEDT-TTF)(TCNQ) using a cavity perturbation technique with a millimeter vector network analyzer (MVNA) and a 14 T superconducting magnet at IMR, Tohoku University. The results of ADMRO and SdH measurements at low temperatures are not consistent w...

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Bibliographic Details
Published in:Synthetic metals 2005-09, Vol.153 (1), p.369-372
Main Authors: Kimata, M., Oshima, Y., Koyama, K., Ohta, H., Motokawa, M., Yamamoto, H.M., Kato, R.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron states
Exact sciences and technology
Fermi surface: calculations and measurements
effective mass, g factor
Magnetotransport
Organic conductors based on radical cation and/or anion salt
Other phase transition
Physics
Transport measurements
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Summary:We have performed magnetooptical measurements of β′′-(BEDT-TTF)(TCNQ) using a cavity perturbation technique with a millimeter vector network analyzer (MVNA) and a 14 T superconducting magnet at IMR, Tohoku University. The results of ADMRO and SdH measurements at low temperatures are not consistent with the band calculation result. Therefore, we are interested in Fermi surfaces at low temperatures and have performed magnetooptical measurements of β′′-(BEDT-TTF)(TCNQ). Although the band calculation and ADMRO results suggest the existence of Q1D FS, our results suggest the existence of Q2D FS only. From the results of magnetooptical measurements, we discuss the FS topology of this system at low temperatures.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2005.07.308