Abstract Bismuth ferrite (BiFeO 3, BFO) as one of the few single-phase room-temperature
multiferroics, has aroused ever-increasing enthusiasm in research communities during the …

In this review we address the microscopic mechanisms that are involved in the
photogeneration processes of GHz–THz coherent acoustic phonons (CAP) induced by an …

Generation of strain using light is a key issue for future development of ultrasonic devices.
Up to now, photo-induced GHz–THz acoustic phonons have been mainly explored in metals …

Light-matter interactions that lead to nonthermal changes in size of the sample constitute a
photostrictive effect in many compounds. The photostriction phenomenon was observed in …

Photostrictive effect exhibits a fascinating ability to directly convert light into mechanical
strain, which enables a facile and straightforward approach to realize the wireless and …

Ultrashort light pulses induce rapid deformations of crystalline lattices. In ferroelectrics,
lattice deformations couple directly to the polarization, which opens the perspective to …

We apply ultrafast x-ray diffraction with femtosecond temporal resolution to monitor the
lattice dynamics in a thin film of multiferroic BiFeO 3 after above-band-gap photoexcitation …

Ferroelectric materials have been a key research topic owing to their wide variety of modern
electronic and photonic applications. For the quick exploration of higher operating speed …

Exploring the dynamic responses of a material is of importance to both understanding its
fundamental physics at high frequencies and potential device applications. Here we develop …

BiFeO 3, a single-phase multiferroic material, possesses several polymorphs and exhibits a
strong sensitivity to strain. Recently, emergent strain engineering in BiFeO 3 thin films has …