285 citations · 2.6k across the 51 of their papers we have counts for
3 papers · 1 filter
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…
Topological semimetals studied by ab initio calculations
Motoaki Hirayama, Ryo Okugawa, Shuichi Murakami
In topological semimetals such as Weyl, Dirac, and nodal-line semimetals, the band gap closes at points or along lines in k space which are not necessarily located at high-symmetry…
Spinless hourglass nodal-line semimetals
Ryo Takahashi, Motoaki Hirayama, Shuichi Murakami
Nodal-line semimetals, one of the topological semimetals, have degeneracy along nodal lines where the band gap is closed. In many cases, the nodal lines appear accidentally, and in…