Low frequency dielectric constant in the antiferromagnetic insulating state of λ-(BEDT-TSF)2FeCl4

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

doi:10.1016/S0379-6779(02)00348-X

Low frequency dielectric constant in the antiferromagnetic insulating state of λ-(BEDT-TSF)₂FeCl₄

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

SCI - Physics

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

5 Citations (Scopus)

Abstract

Using a capacitance bridge with a phase sensitive detection at frequencies f (=ω/2π)=10¹ to 10⁵Hz, we have measured the complex dielectric constant (ω)=₁(ω)+i₂(ω) along the c-axis in the antiferromagnetic insulating state of λ-(BEDT-TSF)₂FeCl₄ below T_MI=8.3K. The magnitude of ₁ is quite large in the order of 10³ to 10⁴ in contrast to 45 at microwave frequencies. Both ₁ and ₂ increase very drastically on approaching to T_MI, suggesting some divergent behavior near T_MI.

Original language	English
Pages (from-to)	563-564
Number of pages	2
Journal	Synthetic Metals
Volume	133-134
DOIs	https://doi.org/10.1016/S0379-6779(02)00348-X
Publication status	Published - 2003 Mar 13
Event	ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001 Sept 10 → 2001 Sept 14

Keywords

Antiferromagnetic order
Complex dielectric constant
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)00348-X

Cite this

@article{c578ee231285428aa081af185ccc9170,

title = "Low frequency dielectric constant in the antiferromagnetic insulating state of λ-(BEDT-TSF)2FeCl4",

abstract = "Using a capacitance bridge with a phase sensitive detection at frequencies f (=ω/2π)=101 to 105Hz, we have measured the complex dielectric constant (ω)=1(ω)+i2(ω) along the c-axis in the antiferromagnetic insulating state of λ-(BEDT-TSF)2FeCl4 below TMI=8.3K. The magnitude of 1 is quite large in the order of 103 to 104 in contrast to 45 at microwave frequencies. Both 1 and 2 increase very drastically on approaching to TMI, suggesting some divergent behavior near TMI.",

keywords = "Antiferromagnetic order, Complex dielectric constant, λ-(BEDT-TSF)FeCl",

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

year = "2003",

month = mar,

day = "13",

doi = "10.1016/S0379-6779(02)00348-X",

language = "English",

volume = "133-134",

pages = "563--564",

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 - Low frequency dielectric constant in the antiferromagnetic insulating state of λ-(BEDT-TSF)2FeCl4

AU - Abe, Y.

AU - Uozaki, H.

AU - Tsuchiya, H.

AU - Negishi, E.

AU - Ishizaki, Y.

AU - Matsui, H.

AU - Endo, S.

AU - Toyota, N.

PY - 2003/3/13

Y1 - 2003/3/13

N2 - Using a capacitance bridge with a phase sensitive detection at frequencies f (=ω/2π)=101 to 105Hz, we have measured the complex dielectric constant (ω)=1(ω)+i2(ω) along the c-axis in the antiferromagnetic insulating state of λ-(BEDT-TSF)2FeCl4 below TMI=8.3K. The magnitude of 1 is quite large in the order of 103 to 104 in contrast to 45 at microwave frequencies. Both 1 and 2 increase very drastically on approaching to TMI, suggesting some divergent behavior near TMI.

AB - Using a capacitance bridge with a phase sensitive detection at frequencies f (=ω/2π)=101 to 105Hz, we have measured the complex dielectric constant (ω)=1(ω)+i2(ω) along the c-axis in the antiferromagnetic insulating state of λ-(BEDT-TSF)2FeCl4 below TMI=8.3K. The magnitude of 1 is quite large in the order of 103 to 104 in contrast to 45 at microwave frequencies. Both 1 and 2 increase very drastically on approaching to TMI, suggesting some divergent behavior near TMI.

KW - Antiferromagnetic order

KW - Complex dielectric constant

KW - λ-(BEDT-TSF)FeCl

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U2 - 10.1016/S0379-6779(02)00348-X

DO - 10.1016/S0379-6779(02)00348-X

M3 - Conference article

AN - SCOPUS:0037435199

SN - 0379-6779

VL - 133-134

SP - 563

EP - 564

JO - Synthetic Metals

JF - Synthetic Metals

T2 - ISCOM 2001

Y2 - 10 September 2001 through 14 September 2001

ER -