Cyclotron resonance measurements of organic conductor α-(BEDT-TTF)2KHg(SeCN)4

H. Ohta; Y. Yamamoto; K. Akioka; M. Motokawa; T. Sasaki; T. Fukase

doi:10.1016/s0379-6779(97)81002-8

Cyclotron resonance measurements of organic conductor α-(BEDT-TTF)₂KHg(SeCN)₄

H. Ohta, Y. Yamamoto, K. Akioka, M. Motokawa, T. Sasaki, T. Fukase

Institute for Materials Research (IMR) (institute affiliation only)

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

21 Citations (Scopus)

Abstract

α-(BEDT-TTF)₂KHg(SeCN)₄ is the new organic conductor which has been synthesized by Sasaki recently. Although it has similar crystal structure with (BEDT-TTF)₂KHg(SCN)₄, it does not show antiferromagnetic like transition down to 0.5 K. Therefore the comparison of the physical properties of these two substances is interesting. The cyclotron resonance of K-Se salt has been measured in the millimeter and submillimeter wave regions with the pulsed magnetic field up to 15 T at 1.8 K, and we observed only one cyclotron resonance with the effective mass of 0.96 m_e It can be attributed to α-orbit , and this effective mass turned out to be smaller than 2.0 m_e obtained by SdH oscillation. The circular polarization measurement has also been performed and this resonance turned out to be hole active which is consistent with the band calculation.

Original language	English
Pages (from-to)	2011-2012
Number of pages	2
Journal	Synthetic Metals
Volume	86
Issue number	1-3
DOIs	https://doi.org/10.1016/s0379-6779(97)81002-8
Publication status	Published - 1997 Feb 28

Keywords

Cyclotron resonance
Magnetotransport
Organic conductors based on radical cation and/or anion salts

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "Cyclotron resonance measurements of organic conductor α-(BEDT-TTF)2KHg(SeCN)4",

abstract = "α-(BEDT-TTF)2KHg(SeCN)4 is the new organic conductor which has been synthesized by Sasaki recently. Although it has similar crystal structure with (BEDT-TTF)2KHg(SCN)4, it does not show antiferromagnetic like transition down to 0.5 K. Therefore the comparison of the physical properties of these two substances is interesting. The cyclotron resonance of K-Se salt has been measured in the millimeter and submillimeter wave regions with the pulsed magnetic field up to 15 T at 1.8 K, and we observed only one cyclotron resonance with the effective mass of 0.96 me It can be attributed to α-orbit , and this effective mass turned out to be smaller than 2.0 me obtained by SdH oscillation. The circular polarization measurement has also been performed and this resonance turned out to be hole active which is consistent with the band calculation.",

keywords = "Cyclotron resonance, Magnetotransport, Organic conductors based on radical cation and/or anion salts",

author = "H. Ohta and Y. Yamamoto and K. Akioka and M. Motokawa and T. Sasaki and T. Fukase",

year = "1997",

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T1 - Cyclotron resonance measurements of organic conductor α-(BEDT-TTF)2KHg(SeCN)4

AU - Ohta, H.

AU - Yamamoto, Y.

AU - Akioka, K.

AU - Motokawa, M.

AU - Sasaki, T.

AU - Fukase, T.

PY - 1997/2/28

Y1 - 1997/2/28

N2 - α-(BEDT-TTF)2KHg(SeCN)4 is the new organic conductor which has been synthesized by Sasaki recently. Although it has similar crystal structure with (BEDT-TTF)2KHg(SCN)4, it does not show antiferromagnetic like transition down to 0.5 K. Therefore the comparison of the physical properties of these two substances is interesting. The cyclotron resonance of K-Se salt has been measured in the millimeter and submillimeter wave regions with the pulsed magnetic field up to 15 T at 1.8 K, and we observed only one cyclotron resonance with the effective mass of 0.96 me It can be attributed to α-orbit , and this effective mass turned out to be smaller than 2.0 me obtained by SdH oscillation. The circular polarization measurement has also been performed and this resonance turned out to be hole active which is consistent with the band calculation.

AB - α-(BEDT-TTF)2KHg(SeCN)4 is the new organic conductor which has been synthesized by Sasaki recently. Although it has similar crystal structure with (BEDT-TTF)2KHg(SCN)4, it does not show antiferromagnetic like transition down to 0.5 K. Therefore the comparison of the physical properties of these two substances is interesting. The cyclotron resonance of K-Se salt has been measured in the millimeter and submillimeter wave regions with the pulsed magnetic field up to 15 T at 1.8 K, and we observed only one cyclotron resonance with the effective mass of 0.96 me It can be attributed to α-orbit , and this effective mass turned out to be smaller than 2.0 me obtained by SdH oscillation. The circular polarization measurement has also been performed and this resonance turned out to be hole active which is consistent with the band calculation.

KW - Cyclotron resonance

KW - Magnetotransport

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

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