4 papers · 1 filter
Defect-Controlled Multiferroicity via Stacking Control in Nonmagnetic van der Waals Bilayers
Bumseop Kim, Sayed Ali Akbar Ghorashi, Andrew M. Rappe
We present a general paradigm that directly couples vacancy-localized magnetism to interfacial sliding ferroelectricity in nonmagnetic van der Waals (vdWs) bilayers. Utilizing bila…
Optical Signature of Moiré Superlattices Formed by Twisted SrTiO Membranes
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He +11
Moiré superlattices formed at the interfaces of mismatched lattices have attracted significant interest over the past decade due to their large tunability of band parameters and in…
Observation of magnetically switchable quantum geometric photocurrents
Qi Tian, Zhuoliang Ni, Matthew Cothrine +6
In non-centrosymmetric materials, light can be rectified into two types of DC photocurrents, known as injection and shift currents, through the bulk photovoltaic effect. Recent the…
How unconventional oxidation state Au is stabilized in halide perovskite CsAuCl: 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…