194 citations · 1.5k across the 46 of their papers we have counts for
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Diverse densest ternary sphere packings
Ryotaro Koshoji, Taisuke Ozaki
The exploration of the densest sphere packings is a fundamental problem in mathematics and a wide variety of sciences including materials science. We present our exhaustive computa…
Densest ternary sphere packings
Ryotaro Koshoji, Taisuke Ozaki
We present our exhaustive exploration of the densest ternary sphere packings (DTSPs) for 45 radius ratios and 237 kinds of compositions, which is a packing problem of three kinds o…
The hidden competing phase revealed by first-principles calculations of phonon instability in the nearly optimally doped cuprate LaSrCuO
Chi-Cheng Lee, Ji-Yao Chiu, Yukiko Yamada-Takamura +1
The representative cuprate, LaMCuO, with M = Sr and is studied via first-principles calculations in the high-temperature tetragonal (HTT), low-temperature…
Methods for constructing parameter-dependent flat band lattices
Toshitaka Ogata, Mitsuaki Kawamura, Taisuke Ozaki
We present two methods for constructing a flat band (FB) system having a flat energy dispersion over the entire Brillouin zone within tight-binding model, where the resulting Hamil…