1999/10/31 by Hiroshi Shimahara, Yasumasa Hasegawa, Mahito Kohmoto · 1 citation
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.supr-con
paper · pdf · doi:10.1143/jpsj.69.1598
published as J.Phys.Soc.Jpn. Vol.69, No.6 (2000) pp.1598-1601. · 4 pages (Latex with revtex.sty, epsf.sty), 4 figures. J. Phys. Soc. Jpn. Vol.69, No.6, in press
arxiv created 2000/05/25 · openalex publication_date 2000/06/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A reduction of the density of states near the Fermi energy in the normal state (pseudogap) of high-temperature oxide superconductors is examined on the basis of the two-dimensional tight-binding model with effective interactions due to antiferromagnetic fluctuations. By using antiferromagnetic correlation lengths which are phenomenologically assumed, the doping dependence of the pseudogap is obtained. The superconducting transition temperature decreases and eventually vanishes due to the pseudogap as the hole concentration is reduced.