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Stabilizing the metallic state in a quasi-two-dimensional (ET)$_{8}$Hg$_{4}$Br$_{12}$(C$_{6}$H$_{5}$Cl)$_{2}$ organic metal under a pressure of 6 kbar
R. B. Lyubovskiiab, S. I. Pesotskiiab, E. I. Zhilyaevaa, S. A. Torunovaa, R. N. Lyubovskaya a Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
b International Laboratory of High Magnetic Fields and Low Temperatures, Wroclaw, Poland
Abstract:
A quasi-two-dimensional (ET)$_{8}$Hg$_{4}$Br$_{12}$(C$_{6}$H$_{5}$Cl)$_{2}$ organic metal undergoes the metal–dielectric transition at $T\sim$ 90 K upon cooling. An external pressure of $P\sim$ 6 kbar completely recovers the metallic state and makes it possible to observe the Shubnikov–de Hass oscillations with a frequency of $F\approx$ 215 T and a cyclotron mass of $m^*\approx$ 0.95 $m_0$. The behavior of the oscillations is consistent with the Fermi surface representation in the form of electron and hole orbits covering the same areas of the first Brillouin zone.
Received: 13.03.2018
Citation:
R. B. Lyubovskii, S. I. Pesotskii, E. I. Zhilyaeva, S. A. Torunova, R. N. Lyubovskay, “Stabilizing the metallic state in a quasi-two-dimensional (ET)$_{8}$Hg$_{4}$Br$_{12}$(C$_{6}$H$_{5}$Cl)$_{2}$ organic metal under a pressure of 6 kbar”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 44:22 (2018), 81–86; Tech. Phys. Lett., 44:11 (2018), 1035–1037
Linking options:
https://www.mathnet.ru/eng/pjtf5641 https://www.mathnet.ru/eng/pjtf/v44/i22/p81
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