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Title: Metal-insulator transition in the dimerized organic conductor κ - ( BEDT-TTF ) 2 Hg ( SCN ) 2 Br

Abstract

The organic charge-transfer salt κ-(BEDT-TTF) 2Hg(SCN) 2Br is a quasi-two-dimensional metal with a half-filled conduction band at ambient conditions. When cooled below T = 80 K, it undergoes a pronounced transition to an insulating phase where the resistivity increases many orders of magnitude. In order to elucidate the nature of this metal-insulator transition, we have performed comprehensive transport, dielectric and optical investigations. The findings are compared with other dimerized κ-(BEDT-TTF) salts, in particular the Cl analog, where a charge-order transition takes place at T CO = 30 K.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
German Research Foundation (DFG); Croatian Science Foundation
OSTI Identifier:
1484856
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 8; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

Citation Formats

Ivek, Tomislav, Beyer, Rebecca, Badalov, Sabuhi, Čulo, Matija, Tomić, Silvia, Schlueter, John A., Zhilyaeva, Elena I., Lyubovskaya, Rimma N., and Dressel, Martin. Metal-insulator transition in the dimerized organic conductor κ-(BEDT-TTF)2Hg(SCN)2Br. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.96.085116.
Ivek, Tomislav, Beyer, Rebecca, Badalov, Sabuhi, Čulo, Matija, Tomić, Silvia, Schlueter, John A., Zhilyaeva, Elena I., Lyubovskaya, Rimma N., & Dressel, Martin. Metal-insulator transition in the dimerized organic conductor κ-(BEDT-TTF)2Hg(SCN)2Br. United States. doi:10.1103/PhysRevB.96.085116.
Ivek, Tomislav, Beyer, Rebecca, Badalov, Sabuhi, Čulo, Matija, Tomić, Silvia, Schlueter, John A., Zhilyaeva, Elena I., Lyubovskaya, Rimma N., and Dressel, Martin. Tue . "Metal-insulator transition in the dimerized organic conductor κ-(BEDT-TTF)2Hg(SCN)2Br". United States. doi:10.1103/PhysRevB.96.085116.
@article{osti_1484856,
title = {Metal-insulator transition in the dimerized organic conductor κ-(BEDT-TTF)2Hg(SCN)2Br},
author = {Ivek, Tomislav and Beyer, Rebecca and Badalov, Sabuhi and Čulo, Matija and Tomić, Silvia and Schlueter, John A. and Zhilyaeva, Elena I. and Lyubovskaya, Rimma N. and Dressel, Martin},
abstractNote = {The organic charge-transfer salt κ-(BEDT-TTF)2Hg(SCN)2Br is a quasi-two-dimensional metal with a half-filled conduction band at ambient conditions. When cooled below T = 80 K, it undergoes a pronounced transition to an insulating phase where the resistivity increases many orders of magnitude. In order to elucidate the nature of this metal-insulator transition, we have performed comprehensive transport, dielectric and optical investigations. The findings are compared with other dimerized κ-(BEDT-TTF) salts, in particular the Cl analog, where a charge-order transition takes place at TCO = 30 K.},
doi = {10.1103/PhysRevB.96.085116},
journal = {Physical Review B},
issn = {2469-9950},
number = 8,
volume = 96,
place = {United States},
year = {2017},
month = {8}
}

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