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127 papers
Reconfigurable, non-volatile control of optical anisotropy in ReS2 via ferroelectric gating
Mahfujur Rahaman, Seunguk Song, Aaliyah C. Khan +8
Electrically tunable linear dichroism (LD) with non-volatile properties represents a critical yet elusive feature for next-generation integrated photonic elements in practical devi…
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…
Ferroelectric Fractals: Switching Mechanism of Wurtzite AlN
Drew Behrendt, Atanu Samanta, Andrew M. Rappe
The advent of wurtzite ferroelectrics is enabling a new generation of ferroelectric devices for computer memory that has the potential to bypass the von Neumann bottleneck, due to…
Domain wall reactions in multiple-order parameter ferroelectrics
Songsong Zhou, Shihan Qin, Andrew M. Rappe
The motion of domain walls is crucial for ferroelectric switching. Conventionally, the switching dynamics is believed to be determined by the motion of one or a few low-energy doma…
Choosing Tight-Binding Models for Accurate Optoelectronic Responses
Andreas Ghosh, Aaron M. Schankler, Andrew M. Rappe
Tight-binding models provide great insight and are a low-cost alternative to \emph{ab initio} methods for calculation of a material's electronic structure. These models are used to…
Bridging experiment and theory of relaxor ferroelectrics at the atomic scale with multislice electron ptychography
Menglin Zhu, Michael Xu, Yubo Qi +7
Introducing structural and/or chemical heterogeneity into otherwise ordered crystals can dramatically alter material properties. Lead-based relaxor ferroelectrics are a prototypica…