Kazuki Morita

collaborators

3 papers

cond-mat.mtrl-sci2026

How unconventional oxidation state Au $^{2 +}$ is stabilized in halide perovskite Cs $_{4}$ Au $_{3}$ Cl $_{12}$ : a first-principles study of its polaron crystal nature

Kazuki Morita, Andrew M. Rappe

Gold in crystalline compounds is typically only stable in oxidation states Au1+ and Au3+. Even compounds with nominal Au2+ usually disproportionate into Au1+ and Au3+. Recently, Cs…

cond-mat.mtrl-sci2026

Direct spatiotemporal imaging of carriers reveals a long-lived bulk photovoltaic mechanism

Saptam Ganguly, Sebin Varghese, Aaron M. Schankler +6

The bulk photovoltaic effect (BPVE), a manifestation of broken centrosymmetry, has attracted interest as a probe of the symmetry and quantum geometry of materials, and for use in p…

cond-mat.mtrl-sci2024

Inverted band gap trend through octahedral ordering in Cs $_{2}$ Au $_{2}$ X $_{6}$ (X=Cl, Br, I)

Kazuki Morita, Andrew M. Rappe

Double perovskites Cs $_{2}$ Au $_{2}$ X $_{6}$ (X=Cl, Br, I) are prototypical materials that exhibit charge disproportionation of gold into 1+ and 3+ states. It is known that the disproporti…

How unconventional oxidation state Au2+ is stabilized in halide perovskite Cs4​Au3​Cl12​: a first-principles study of its polaron crystal nature

Direct spatiotemporal imaging of carriers reveals a long-lived bulk photovoltaic mechanism

Inverted band gap trend through octahedral ordering in Cs2​Au2​X6​ (X=Cl, Br, I)

How unconventional oxidation state Au $^{2 +}$ is stabilized in halide perovskite Cs $_{4}$ Au $_{3}$ Cl $_{12}$ : a first-principles study of its polaron crystal nature

Inverted band gap trend through octahedral ordering in Cs $_{2}$ Au $_{2}$ X $_{6}$ (X=Cl, Br, I)