Fermi Surface Instability of Quasi-Two-Dimensional Tight Binding Electrons : A Possible Phase Diagram of (La_<1-x>M_x)_2CuO_4
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概要
- 論文の詳細を見る
The Hartree-Fock instability against charge or spin density wave is examined as a function of the band filling for quasi-two-dimensional tight binding electrons in the tetragonal symmetry. It is found that the existence of the instability can be confined to the region close to the half-filling. The implication of the present result is discussed in the context of high T_c superconductor, (La_<1-x>M_x)_2CuO_4, and it is indicated that the ground state for very small value of x will be the spin density wave (SDW) and that the superconductivity state is stabilized above some critical value of x of the order of 0.01.
- 社団法人応用物理学会の論文
- 1987-04-20
著者
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Fukuyama Hidetoshi
Institute For Solid State Physics The University Of Tokyo
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Hasegawa Yasumasa
Institute For Solid State Physics University Of Tokyo
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FUKUYAMA Hidetoshi
Institute for Materials Research, Tohoku University
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