39 citations · 123 across the 7 of their papers we have counts for
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Bulk Photovoltaic Effect Driven by Collective Excitations in a Correlated Insulator
Tatsuya Kaneko, Zhiyuan Sun, Yuta Murakami +2
We investigate the bulk photovoltaic effect, which rectifies light into electric current, in a collective quantum state with correlation driven electronic ferroelectricity. We show…
Topological charge pumping in excitonic insulators
Zhiyuan Sun, Andrew J. Millis
We show that in excitonic insulators with -wave electron-hole pairing, an applied electric field (either pulsed or static) can induce a -wave component to the order parameter…
Nonlinear spectroscopy of collective modes in excitonic insulator
Denis Golez, Zhiyuan Sun, Yuta Murakami +2
The nonlinear optical response of an excitonic insulator coupled to lattice degrees of freedom is shown to depend in strong and characteristic ways on whether the insulating behavi…
Graphene/-RuCl: An Emergent 2D Plasmonic Interface
Daniel J. Rizzo, Bjarke S. Jessen, Zhiyuan Sun +16
Work function-mediated charge transfer in graphene/-RuCl heterostructures has been proposed as a strategy for generating highly-doped 2D interfaces. In this geometry, graphe…
Bardasis-Schrieffer polaritons in excitonic insulators
Zhiyuan Sun, Andrew J. Millis
Bardasis-Schrieffer modes in superconductors are fluctuations in subdominant pairing channels, e.g., d-wave fluctuations in an s-wave superconductor. This Rapid Communication shows…
Pump induced motion of an interface between competing orders
Zhiyuan Sun, Andrew J. Millis
We study the motion of an interface separating two regions with different electronic orders following a short duration pump that drives the system out of equilibrium. Using a gener…