2005/06/30 by C. H. Wang, Guoyu Wang, G. Y. Wang +6
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.72.132506
4 pages, 4 figures, to be published in PRB
arxiv created 2005/10/20 · openalex publication_date 2005/10/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The Hall coefficient RH and thermoelectric power (TEP) are studied systematically in the single crystals of Nd_2\ensuremath-xCexCuO4 from the underdoped to overdoped regimes. Both RH and TEP decrease and change signs with the increasing doping level x. A striking feature of our study is that the temperature dependence of the Hall angle follows the T4 behavior in the underdoped regime, while the quadratic law is followed in the overdoped regime. This feature is closely related to the evolution of the Fermi surface, which is observed by ARPES.