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Dome structure in pressure dependence of superconducting transition temperature for HgBaCaCuO -- Studies by low-energy effective Hamiltonian
Jean-Baptiste Morée, Youhei Yamaji, Masatoshi Imada
The superconducting (SC) cuprate HgBaCaCuO (Hg1223) has the highest K (the experimental SC transition temperature at optimal hole doping…
Superconductivity studied by solving ab initio low-energy effective Hamiltonians for carrier doped CaCuO, BiSrCuO, BiSrCaCuO, and HgBaCuO
Michael Thobias Schmid, Jean-Baptiste Morée, Ryui Kaneko +2
We numerically analyze superconductivity (SC) in the cuprate superconductors by using ab initio effective Hamiltonians consisting of the antibonding combination of Cu $3d_{x^2-y^2}…
Ab initio effective Hamiltonians for cuprate superconductors
Motoaki Hirayama, Youhei Yamaji, Takahiro Misawa +1
Ab initio low-energy effective Hamiltonians of two typical high-temperature copper-oxide superconductors, whose mother compounds are LaCuO and HgBaCuO, are derived…
Impurity Effects on Superconductivity on Surfaces of Topological Insulators
Yuto Ito, Youhei Yamaji, Masatoshi Imada
A two-dimensional superconductor (SC) on surfaces of topological insulators (TIs) is a mixture of s-wave and helical p-wave components when induced by s-wave interactions, since sp…
Stability of Unconventional Superconductivity on Surfaces of Topological Insulators
Yuto Ito, Youhei Yamaji, Masatoshi Imada
Superconductivity on the surface of topological insulators is known to be anisotropic and unconventional in that the symmetry is the mixture of s-wave and nodeless p-wave component…