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


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 - Condensed Matter and Materials Physics, 96 (2017), 8; 085116-1 doi:10.1103/PhysRevB.96.085116 (međunarodna recenzija, članak, znanstveni)


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

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

Izvornik
Physical Review B - Condensed Matter and Materials Physics (1098-0121) 96 (2017), 8; 085116-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

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

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-1011 - Jako korelirani elektroni u slojnim organskim materijalima i manganitima: niskofrekventna pobuđenja i nelinearna dinamika (Silvia Tomić, )

Ustanove
Institut za fiziku, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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