Resistivity anisotropy and charge density wave in 2H - NbSe2 and 2H - TaSe2

✍ Scribed by A. LeBlanc; A. Nader

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 387 KB
• Volume: 150
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/j.ssc.2010.05.001

✦ Synopsis

The in-plane and out-of-plane resistivities of both 2H-TaSe 2 and 2H-NbSe 2 were determined down to 10 K. For both compounds, the resistivity anisotropy shows notably a slope change at temperatures where a CDW transition is expected to occur. On the other hand, for both compounds the resistivity anisotropy at the lowest temperature of measurement is much greater than expected by the Lawrence-Doniach model, which relates the critical magnetic field anisotropy to the normal state resistivity anisotropy for 3D-anisotropic superconductors.