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Metal-insulator transition in the dimerized organic conductor κ-(BEDT-TTF)2Hg(SCN)2Br (CROSBI ID 241867)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

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 // Physical review. B, 96 (2017), 8; 085116, 8. doi: 10.1103/PhysRevB.96.085116

Podaci o odgovornosti

Ivek, Tomislav ; Beyer, Rebecca ; Badalov, Sabuhi ; Čulo, Matija ; Tomić, Silvia ; Schlueter, John. A. ; Zhilyaeva, Elena I. ; Lyubovskaya, Rimma N. ; Dressel, Martin

engleski

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

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.

charge order ; conductivity ; dielectric properties ; metal-insulator transition ; optical conductivity ; permittivity ; Mott insulator ; dielectric spectroscopy ; Fourier transform infrared spectroscopy ; infrared spectroscopy

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Podaci o izdanju

96 (8)

2017.

085116

8

objavljeno

2469-9950

2469-9969

10.1103/PhysRevB.96.085116

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Fizika

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