Nonlinear conductivity in the ground state of α -(BEDT-TTF)_2KHg(SCN)_4 (CROSBI ID 95853)
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Basletić, Mario ; Korin-Hamzić, Bojana ; Kartsovnik, M.V. ; Müller, H.
engleski
Nonlinear conductivity in the ground state of α -(BEDT-TTF)_2KHg(SCN)_4
We have studied the current-voltage characteristics of α -(BEDT-TTF)_2KHg(SCN)_4 in the low temperature state. For the conductivity parallel to the conducting a-c plane the nonlinearity appears above a well defined finite threshold electric field of 25 mV/cm at 2 K. This threshold field increases to about 200 mV/cm at 7.5 K. The nonlinearity is not detected above T=8 K. Our data clearly show that the low temperature phase of α -(BEDT-TTF)_2KHg(SCN)_4 is a density wave.
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