A non-perturbative study of bulk photovoltaic effect enhanced by an optically induced phase transition

Abstract

Solid systems with strong correlations and interactions under light illumination have the potential for exhibiting interesting bulk photovoltaic behavior in the non-perturbative regime, which has remained largely unexplored in the past theoretical studies. We investigate the bulk photovoltaic response of a perovskite manganite with strongly coupled electron-spin-lattice dynamics, using real-time simulations performed with a tight-binding model. The transient changes in the band structure and the photoinduced phase transitions, emerging from spin and phonon dynamics, result in a nonlinear current versus intensity behavior beyond the perturbative limit. The current rises sharply across a photoinduced magnetic phase transition, which later saturates at higher light intensities due to excited phonon and spin modes. The predicted peak photoresponsivity is orders of magnitude higher than other known ferroelectric oxides such as BiFeO${}_3$. We disentangle phonon-and spin-assisted components to the ballistic photocurrent, showing that they are comparable in magnitude. Our results illustrate a promising alternative way for controlling and optimizing the bulk photovoltaic response through the photoinduced phase transitions in strongly-correlated systems.

arXiv comment6 pages, 4 figures

References in corpus (20)

• Quantum nonlinear Hall effect induced by Berry curvature dipole in time-reversal invariant materials
• First principles calculations of the Shift Current Bulk Photovoltaic Effect in Ferroelectrics
• Topological nature of nonlinear optical effects in solids
• Design principles for shift current photovoltaics
• Confinement-induced Berry phase and helicity-dependent photocurrents
• Origin of the crossover from polarons to Fermi liquids in transition metal oxides
• Exchange coupling in transition metal monoxides: Electronic structure calculations
• Photogalvanic Effect in Weyl Semimetals from First Principles
• Quantitative relationship between polarization differences and the zone-averaged shift photocurrent
• Ballistic and shift currents in the bulk photovoltaic effect theory
• Phonon-Assisted Ballistic Current From First Principles Calculations
• Electronic structure of Pr${}_{1-x}$Ca${}_x$MnO${}_3$
• Current-induced forces: a simple derivation
• Jerk current: A novel bulk photovoltaic effect
• Bulk Photovoltaic Effect Driven by Collective Excitations in a Correlated Insulator
• Rabi Regime of Current Rectification in Solids
• All-optically induced ultrafast photocurrents: Beyond the instantaneous coherent response
• Non-equilibrium nature of non-linear optical response: Application to the bulk photo voltaic effect
• Evolution of the magnetic and polaronic order of $\mathrm{P}{\mathrm{r}}_{1/2}\mathrm{C}{\mathrm{a}}_{1/2}\mathrm{Mn}{\mathrm{O}}_3$ following an ultrashort light pulse
• Ultrafast spin-nematic and ferroelectric phase transitions induced by femto-second light pulses

Cited by in corpus (4)

• Nonlinear Optics: a look from the interaction time viewpoint and what it portends
• Choosing Tight-Binding Models for Accurate Optoelectronic Responses
• Unambiguous Simulation of Diffusive Charge Transport in Disordered Nanoribbons
• INQ, a modern GPU-accelerated computational framework for (time-dependent) density functional theory