3 papers
quant-ph2026
The Langevin-equation description of optomechanics with the dispersive and dissipative optomechanical coupling
Alexander K. Tagantsev
The description of the optomechanical systems is commonly based on the quantum Langevin equation formalism. This framework is introduced phenomenologically or based on a model Hami…
cond-mat.mtrl-sci2026
Photovoltaic creation of charged domain walls in barium titanate
P. S. Bednyakov, P. V. Yudin, A. K. Tagantsev +1
The optical control of domain structures in ferroelectrics is of great interest. In the present work, we demonstrate the reliable creation of charged domain walls - conductive chan…
cond-mat.mtrl-sci2024
Paradoxical creation of a polydomain pattern by electric field in BaTiO3 crystal
Petr S. Bednyakov, Petr V. Yudin, Alexander K. Tagantsev +1
It is known that ferroelectric single crystals can be turned from a polydomain to a monodomain state by the application of an electric field. Here we report an unexpected opposite…