Charge density wave transition and nonlinear conductivity in NbS3 |
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| Authors: | A Zettl CM Jackson A Janossy G Grüner A Jacobsen AH Thompson |
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| Institution: | Department of Physics, University of California Los Angeles, California 90024, USA;EXXON Research and Engineering Co., Linden, New Jersey 07036, USA |
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| Abstract: | We report dc conductivity (σ) measurements on the linear chain compound NbS3. The temperature dependence of σ indicates a phase trànsition at TMI = 155 K with strong one-dimensional fluctuations above TMI. Below TMI the conductivity is strongly increasing with increasing electric field above a threshold field ET, and is also strongly frequency dependent. We argue that the nonlinear conductivity is due to sliding charge density waves. |
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