285 citations · 2.6k across the 51 of their papers we have counts for
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Materials design of dynamically stable layered nickelates
Motoaki Hirayama, Terumasa Tadano, Yusuke Nomura +1
Motivated by the recent discovery of superconductivity in the Sr-doped layered nickelate NdNiO, we perform a systematic computational materials design of layered nickelates tha…
Pressure-induced topological phase transition in noncentrosymmetric elemental Tellurium
Toshiya Ideue, Motoaki Hirayama, Hiroaki Taiko +6
Recent progress in understanding the electronic band topology and emergent topological properties encourage us to reconsider the band structure of well-known materials including el…
Formation of 2D single-component correlated electron system and band engineering in the nickelate superconductor NdNiO2
Yusuke Nomura, Motoaki Hirayama, Terumasa Tadano +3
Motivated by the recent experimental discovery of superconductivity in the infinite-layer nickelate Nd0.8Sr0.2NiO2 [Li et al., Nature 572, 624 (2019)], we study how the correlated…
Radial spin texture in elemental tellurium with chiral crystal structure
M. Sakano, M. Hirayama, T. Takahashi +18
The chiral crystal is characterized by a lack of mirror symmetry and an inversion center, resulting in the inequivalent right- and left-handed structures. In the noncentrosymmetric…
Unconventional full-gap superconductivity in Kondo lattice with semi-metallic conduction bands
Shoma Iimura, Motoaki Hirayama, Shintaro Hoshino
A mechanism of superconductivity is proposed for the Kondo lattice which has semi-metallic conduction bands with electron and hole Fermi surfaces. At high temperatures, the ele…
Topological semimetal phases manifested in transition metal dichalcogenides intercalated with 3d metals
Takeshi Inoshita, Motoaki Hirayama, Noriaki Hamada +2
In the search for stable topological semimetals with clean band profiles, we have screened all the 3 metal-intercalated transition-metal dichalcogenides (3dI-TMDCs) by performin…
Ab Initio Study on Superconductivity and Inhomogeneity in Hg-based Cuprate Superconductor
Takahiro Ohgoe, Motoaki Hirayama, Takahiro Misawa +3
Understanding physics of high- cuprate superconductors remains one of the important problems in materials science. Though a number of diverse theories argue about the supercon…
Effective Hamiltonian for cuprate superconductors derived from multi-scale ab initio scheme with level renormalization
Motoaki Hirayama, Takahiro Misawa, Takahiro Ohgoe +2
Three-types (three-band, two-band and one-band) of effective Hamiltonians for the HgBaCuO and three-band effective Hamiltonian for LaCuO are derived beyond the leve…