Microwave response in the antiferromagnetic insulating states of λ-(BEDT-TSF)2FeCl4

H. Tsuchiya; H. Matsui; H. Uozaki; Y. Abe; Y. Ishizaki; E. Negishi; S. Endo; N. Toyota

doi:10.1016/S0379-6779(02)00347-8

Microwave response in the antiferromagnetic insulating states of λ-(BEDT-TSF)₂FeCl₄

H. Tsuchiya, H. Matsui, H. Uozaki, Y. Abe, Y. Ishizaki, E. Negishi, S. Endo, N. Toyota

SCI - Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

We have measured the complex conductivity (σ^*c=σ₁^c+iσ₂ ^c) along the c-axis in λ-(BEDT-TSF)₂FeCl₄ below the metal-to-insulator (MI) transition at T_MI=8.3K. Microwave experiments have been carried out at 16.3 and 44.5GHz employing a cavity perturbation method. The temperature dependence of σ₁^c below T_MI shows a large frequency dispersion, which could be attributed to a low energy excitation inside the gap such as a collective mode. With decreasing temperature, the real part of the dielectric constant ₁^c indicates a remarkable decrease at T_MI.

Original language	English
Pages (from-to)	561-562
Number of pages	2
Journal	Synthetic Metals
Volume	133-134
DOIs	https://doi.org/10.1016/S0379-6779(02)00347-8
Publication status	Published - 2003 Mar 13
Event	ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001 Sep 10 → 2001 Sep 14

Keywords

Dielectric
Metal- to-insulator transition
Microwave
λ-(BEDT-TSF)FeCl

ASJC Scopus subject areas

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

Access to Document

10.1016/S0379-6779(02)00347-8

Cite this

@article{6a230f9376664766ac761671086d3805,

title = "Microwave response in the antiferromagnetic insulating states of λ-(BEDT-TSF)2FeCl4",

abstract = "We have measured the complex conductivity (σ*c=σ1c+iσ2 c) along the c-axis in λ-(BEDT-TSF)2FeCl4 below the metal-to-insulator (MI) transition at TMI=8.3K. Microwave experiments have been carried out at 16.3 and 44.5GHz employing a cavity perturbation method. The temperature dependence of σ1c below TMI shows a large frequency dispersion, which could be attributed to a low energy excitation inside the gap such as a collective mode. With decreasing temperature, the real part of the dielectric constant 1c indicates a remarkable decrease at TMI.",

keywords = "Dielectric, Metal- to-insulator transition, Microwave, λ-(BEDT-TSF)FeCl",

author = "H. Tsuchiya and H. Matsui and H. Uozaki and Y. Abe and Y. Ishizaki and E. Negishi and S. Endo and N. Toyota",

year = "2003",

month = mar,

day = "13",

doi = "10.1016/S0379-6779(02)00347-8",

language = "English",

volume = "133-134",

pages = "561--562",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

note = "ISCOM 2001 ; Conference date: 10-09-2001 Through 14-09-2001",

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TY - JOUR

T1 - Microwave response in the antiferromagnetic insulating states of λ-(BEDT-TSF)2FeCl4

AU - Tsuchiya, H.

AU - Matsui, H.

AU - Uozaki, H.

AU - Abe, Y.

AU - Ishizaki, Y.

AU - Negishi, E.

AU - Endo, S.

AU - Toyota, N.

PY - 2003/3/13

Y1 - 2003/3/13

N2 - We have measured the complex conductivity (σ*c=σ1c+iσ2 c) along the c-axis in λ-(BEDT-TSF)2FeCl4 below the metal-to-insulator (MI) transition at TMI=8.3K. Microwave experiments have been carried out at 16.3 and 44.5GHz employing a cavity perturbation method. The temperature dependence of σ1c below TMI shows a large frequency dispersion, which could be attributed to a low energy excitation inside the gap such as a collective mode. With decreasing temperature, the real part of the dielectric constant 1c indicates a remarkable decrease at TMI.

AB - We have measured the complex conductivity (σ*c=σ1c+iσ2 c) along the c-axis in λ-(BEDT-TSF)2FeCl4 below the metal-to-insulator (MI) transition at TMI=8.3K. Microwave experiments have been carried out at 16.3 and 44.5GHz employing a cavity perturbation method. The temperature dependence of σ1c below TMI shows a large frequency dispersion, which could be attributed to a low energy excitation inside the gap such as a collective mode. With decreasing temperature, the real part of the dielectric constant 1c indicates a remarkable decrease at TMI.

KW - Dielectric

KW - Metal- to-insulator transition

KW - Microwave

KW - λ-(BEDT-TSF)FeCl

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U2 - 10.1016/S0379-6779(02)00347-8

DO - 10.1016/S0379-6779(02)00347-8

M3 - Conference article

AN - SCOPUS:0037435315

VL - 133-134

SP - 561

EP - 562

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

T2 - ISCOM 2001

Y2 - 10 September 2001 through 14 September 2001

ER -