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Hubbard Physics in the Symmetric Half-filled Periodic Anderson-Hubbard Model
I. Hagym´asi,K. Itai,J. S´olyom 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.10
Two very different methods – exact diagonalization on finite chains and a variational method –are used to study the possibility of a metal-insulator transition in the symmetric half-filled periodic Anderson-Hubbard model. With this aim we calculate the density of doubly occupied d sites (νd)as a function of various parameters. In the absence of on-site Coulomb interaction (Uf ) between f electrons, the two methods yield similar results. The double occupancy of d levels remains always finite just as in the one-dimensional Hubbard model. Exact diagonalization on finite chains gives the same result for finite Uf , while the Gutzwiller method leads to a Brinkman-Rice transition at a critical value (Uc d ), which depends on Uf and V .
Iron deficiency regulated OsOPT7 is essential for iron homeostasis in rice
Bashir, Khurram,Ishimaru, Yasuhiro,Itai, Reiko Nakanishi,Senoura, Takeshi,Takahashi, Michiko,An, Gynheung,Oikawa, Takaya,Ueda, Minoru,Sato, Aiko,Uozumi, Nobuyuki,Nakanishi, Hiromi,Nishizawa, Naoko K. Springer-Verlag 2015 Plant Molecular Biology Vol. No.