Non-equilibrium transport in NbSe3: Effects of a temperature gradient |
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| Authors: | A Zettl M Kaiser G Grüner |
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| Institution: | Department of Physics University of California, Berkeley Berkeley, CA 94720, USA;Department of Physics University of California, Los Angeles Los Angeles, CA 90024, USA;Department of Physics University of California, Los Angeles Los Angeles, CA 90024, USA |
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| Abstract: | We have measured the dc response characteristics of NbSe3 in the charge density wave (CDW) state, in the presence of an applied temperature gradient. The threshold field ET for the onset of nonlinear conduction remains sharp, and is determined by the average temperature of the specimen. No change is observed in the amplitude or quality factor of the coherent current oscillations in the nonlinear conductivity region, other than that expected from a change in average temperature. We interpret our results as evidence for macroscopic dynamical coherence throughout the specimen. |
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