Temperature dependence of the resistivity in the pristine state and in two subsequent metastable states, state 1 and state 2, created by application of voltage pulses at 77 K. Inset shows collapse of temperature dependencies of the resistivity normalized to the resistivity at for all states into a single curve.
Power spectral density at 1 Hz and spectral exponent of 1/f conductivity noise in different metastable states as a function of temperature and bias current.
Normalized noise power spectral density at 1 Hz as a function of bias voltage in different metastable states at T = 77 K.
Voltage derivative of the sample conductance measured at 77 K in different metastable states as a function of bias voltage. Hatched boxes indicate bias range at which the conductance is roughly proportional to .
Spectral exponent of the noise as a function of bias voltage in different metastable states at 77 K.
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