期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 78, 期 1, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.78.013706
关键词
d-p model; incommensurate antiferromagnetism; stripes; coexistence; variational Monte Carlo method
资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan
Numerical studies of the two-dimensional cl-p model using the Gutzwiller ansatz have exhibited the incommensurate antiferromagnetic state coexisting with superconductivity in the under- and lightly doped regions. Our results are based on the variational Monte Carlo method for the three-band Hubbard model with d and p orbitals. We obtained the finite superconducting condensation energy for the coexistent sate at the doping rate x = 1/8, 1/12, and 1/16, tip to the systems of 256 unit eel Is with 768 atoms (oxygen and copper atoms). The phase diagram for the hole-doped case is consistent with recent results reported for layered high temperature cuprates.
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