Fermi surface study of β′′-(BEDT-TTF)(TCNQ) by magnetooptical measurements

M. Kimata; Y. Oshima; K. Koyama; H. Ohta; M. Motokawa; H. M. Yamamoto; R. Kato

doi:10.1016/j.synthmet.2005.07.308

Fermi surface study of β′′-(BEDT-TTF)(TCNQ) by magnetooptical measurements

M. Kimata, Y. Oshima, K. Koyama, H. Ohta, M. Motokawa, H. M. Yamamoto, R. Kato

IMR - Materials Property Division

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	369-372
Number of pages	4
Journal	Synthetic Metals
Volume	153
Issue number	1-3
DOIs	https://doi.org/10.1016/j.synthmet.2005.07.308
Publication status	Published - 2005 Sept 21

Keywords

Magnetotransport
Organic conductors based on radical cation and/or anion salt
Other phase transition
Transport measurements

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10.1016/j.synthmet.2005.07.308

Cite this

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title = "Fermi surface study of β′′-(BEDT-TTF)(TCNQ) by magnetooptical measurements",

abstract = "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.",

keywords = "Magnetotransport, Organic conductors based on radical cation and/or anion salt, Other phase transition, Transport measurements",

author = "M. Kimata and Y. Oshima and K. Koyama and H. Ohta and M. Motokawa and Yamamoto, {H. M.} and R. Kato",

year = "2005",

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doi = "10.1016/j.synthmet.2005.07.308",

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T1 - Fermi surface study of β′′-(BEDT-TTF)(TCNQ) by magnetooptical measurements

AU - Kimata, M.

AU - Oshima, Y.

AU - Koyama, K.

AU - Ohta, H.

AU - Motokawa, M.

AU - Yamamoto, H. M.

AU - Kato, R.

PY - 2005/9/21

Y1 - 2005/9/21

N2 - 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.

AB - 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.

KW - Magnetotransport

KW - Organic conductors based on radical cation and/or anion salt

KW - Other phase transition

KW - Transport measurements

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JO - Synthetic Metals

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ER -

Fermi surface study of β′′-(BEDT-TTF)(TCNQ) by magnetooptical measurements

Abstract

Keywords

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