Non-linear conduction in the density wave state of quasi-two dimensional organic conductor α-(BEDT-TTF)2KHg(SCN)4

Toshiyuki Fujita; Takahiko Sasaki; Naoki Yoneyama; Norio Kobayashi

doi:10.1143/JPSJ.73.1525

Non-linear conduction in the density wave state of quasi-two dimensional organic conductor α-(BEDT-TTF)₂KHg(SCN)₄

Toshiyuki Fujita, Takahiko Sasaki, Naoki Yoneyama, Norio Kobayashi

IMR - Materials Property Division

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

2 Citations (Scopus)

Abstract

Current-voltage characteristics are measured in the quasi-two dimensional organic conductor α-(BEDT-TTF)₂KHg(SCN)₄ at temperatures down to 0.5 K and in the magnetic field up to 25 T. The nonlinear conduction with a threshold electric field is found in the density wave state. The features of threshold electric field obtained in the low magnetic field region are explained by the unconventional charge density wave model. In the high magnetic field region, where the Shubnikov-de Haas oscillations appear, the current-voltage characteristics reveal that the density wave state synchronizes with the filling of the electron on the Landau level and continues even above a kink field 23 T.

Original language	English
Pages (from-to)	1525-1531
Number of pages	7
Journal	Journal of the Physical Society of Japan
Volume	73
Issue number	6
DOIs	https://doi.org/10.1143/JPSJ.73.1525
Publication status	Published - 2004 Jun

Keywords

Density wave state
Non-linear conduction
Organic conductor
Shubnikov-de Haas oscillation

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10.1143/JPSJ.73.1525

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title = "Non-linear conduction in the density wave state of quasi-two dimensional organic conductor α-(BEDT-TTF)2KHg(SCN)4",

abstract = "Current-voltage characteristics are measured in the quasi-two dimensional organic conductor α-(BEDT-TTF)2KHg(SCN)4 at temperatures down to 0.5 K and in the magnetic field up to 25 T. The nonlinear conduction with a threshold electric field is found in the density wave state. The features of threshold electric field obtained in the low magnetic field region are explained by the unconventional charge density wave model. In the high magnetic field region, where the Shubnikov-de Haas oscillations appear, the current-voltage characteristics reveal that the density wave state synchronizes with the filling of the electron on the Landau level and continues even above a kink field 23 T.",

keywords = "Density wave state, Non-linear conduction, Organic conductor, Shubnikov-de Haas oscillation",

author = "Toshiyuki Fujita and Takahiko Sasaki and Naoki Yoneyama and Norio Kobayashi",

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T1 - Non-linear conduction in the density wave state of quasi-two dimensional organic conductor α-(BEDT-TTF)2KHg(SCN)4

AU - Fujita, Toshiyuki

AU - Sasaki, Takahiko

AU - Yoneyama, Naoki

AU - Kobayashi, Norio

PY - 2004/6

Y1 - 2004/6

N2 - Current-voltage characteristics are measured in the quasi-two dimensional organic conductor α-(BEDT-TTF)2KHg(SCN)4 at temperatures down to 0.5 K and in the magnetic field up to 25 T. The nonlinear conduction with a threshold electric field is found in the density wave state. The features of threshold electric field obtained in the low magnetic field region are explained by the unconventional charge density wave model. In the high magnetic field region, where the Shubnikov-de Haas oscillations appear, the current-voltage characteristics reveal that the density wave state synchronizes with the filling of the electron on the Landau level and continues even above a kink field 23 T.

AB - Current-voltage characteristics are measured in the quasi-two dimensional organic conductor α-(BEDT-TTF)2KHg(SCN)4 at temperatures down to 0.5 K and in the magnetic field up to 25 T. The nonlinear conduction with a threshold electric field is found in the density wave state. The features of threshold electric field obtained in the low magnetic field region are explained by the unconventional charge density wave model. In the high magnetic field region, where the Shubnikov-de Haas oscillations appear, the current-voltage characteristics reveal that the density wave state synchronizes with the filling of the electron on the Landau level and continues even above a kink field 23 T.

KW - Density wave state

KW - Non-linear conduction

KW - Organic conductor

KW - Shubnikov-de Haas oscillation

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Non-linear conduction in the density wave state of quasi-two dimensional organic conductor α-(BEDT-TTF)₂KHg(SCN)₄

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Keywords

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