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, Naoki Toyota

Research output: Contribution to journalConference articlepeer-review

4 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 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.

Original languageEnglish
Pages (from-to)563-564
Number of pages2
JournalSynthetic Metals
Volume133-134
DOIs
Publication statusPublished - 2003 Mar 13
EventISCOM 2001 - Rusutsu, Hokkaido, Japan
Duration: 2001 Sep 102001 Sep 14

Keywords

  • Antiferromagnetic order
  • Complex dielectric constant
  • λ-(BEDT-TSF)FeCl

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

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