1922/01/01 by Peihong Zhang, Weidong Luo, Marvin L. Cohen +2
Business, Management and Accounting · Economics, Econometrics and Finance · Materials Science · Physics and Astronomy · Social Sciences · #Advanced Thermoelectric Materials and Devices #Financial Literacy, Pension, Retirement Analysis #Fiscal Policy and Economic Growth #Gender, Labor, and Family Dynamics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.93.236402
published as Phys. Rev. Lett. 93, 236402 (2004)
openalex publication_date 1922/01/01 · arxiv created 2004/10/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
Doping evolution of the Fermi surface topology of Na(x)CoO(2) is studied systematically. Both local density approximation (LDA) and local spin density approximation (LSDA) predict a large Fermi surface as well as small hole pockets for doping levels x approximately 0.5. In contrast, the hole pockets are completely absent for all doping levels within LSDA+U. More importantly, we find no violation of Luttinger's rule in this system. The measured Fermi surface of Na(0.7)CoO(2) can be explained by its half-metallic behavior and agrees with our LSDA+U calculations.