Saptam Ganguly, David Pesquera, Daniel Moreno Garcia, Umair Saeed, Nona Mirzamohammadi, José Santiso, Jessica Padilla, José Manuel Caicedo Roque, Claire Laulhé, Felisa Berenguer, Luis Guillermo Villanueva, Gustau Catalan
Complex oxides offer a wide range of functional properties, and recent advances in fabrication of freestanding membranes of these oxides are adding new mechanical degrees of freedom to this already rich functional ecosystem. Here, we demonstrate photoactuation in freestanding thin film resonators of ferroelectric Barium Titanate (BaTiO3 ) and paraelectric Strontium Titanate (SrTiO3 ). The free-standing films, transferred onto perforated supports, act as nano-drums, oscillating at their natural resonance frequency when illuminated by a frequency-modulated laser...
March 28, 2024: Advanced Materials