Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9841759 | Physica C: Superconductivity and its Applications | 2005 | 5 Pages |
Abstract
We have studied charge density wave (CDW) in low-dimensional conductors, metal tri-chalcogenides (MX3), and metal di-chalcogenides (MX2). The Fröhlich superconductivity is achieved through an ideal system in the absence of pinning potential. Downsizing is a promising approach. We succeeded in synthesizing TaSe2 nanocrystals by the de-chalcogenide method. TaSe2 crystals were obtained by the hydrogen reduction of TaSe3 nanofibers at a relatively low temperature (300 °C). Therefore, we propose a conversion mechanism to obtain TaSe2 from TaSe3 by the de-chalcogenide method. The TaSe2 nanocrystals thus obtained were investigated by transmission electron microscopy and electron diffraction, and new CDW phases (26.21Ã26.21,7Ã7, and 2 Ã 2 superlattices) were discovered.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
T. Toshima, S. Tanda,