1. Charge ordering in amorphous WO x films
- Author
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Kopelevich, Yakov, da Silva, Robson R., Rougier, Aline, and Luk'yanchuk, Igor A.
- Subjects
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PHYSICS , *PHYSICAL sciences , *SCIENCE , *ELECTRONICS - Abstract
Abstract: We report on the observation of highly anisotropic viscous electronic conducting phase in amorphous WO1.55 films that occurs below a current (I)- and frequency (f)-dependent temperature . At the rotational symmetry of randomly disordered electronic background is broken leading to the appearance of mutually perpendicular metallic- and insulating-like states. A rich dynamic behavior of the electronic matter occurring at provides evidence for an interplay between pinning effects and electron–electron interactions. The results suggest a dynamic crystallization of the disordered electronic matter, viz. formation of sliding Wigner crystal, as well as the occurrence of quantum liquid-like crystal or stripe phase at low drives. [Copyright &y& Elsevier]
- Published
- 2007
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