3 papers
cond-mat.mtrl-sci2025
Band gap tuning by structural phase transition in Sm-substituted BiFeO3 powders
Christina Hill, Michele Melchiorre, Cosme Milesi-Brault +6
The substitution of bismuth by samarium in BiFeO3 is known to induce a structural phase transition from the polar phase to a non-polar phase, with a possible antiferroelectric inte…
cond-mat.mtrl-sci2024
Coexisting polarization mechanisms in ferroelectric uniaxial tetragonal tungsten bronze Ca_0.3Ba_0.7Nb_2O_6
E. Buixaderas, Š. Svirskas, C. Kadlec +6
Using a broad band dielectric spectroscopy approach (1 to 10^14 Hz) we prove that the tungsten bronze Ca0.3Ba0.7Nb2O6 (CBN-30) displays a ferroelectric phase transition of mixed di…
cond-mat.mtrl-sci2022
Birefringence induced by antiferroelectric switching in transparent polycrystalline film
Pranab Parimal Biswas, Cosme Milesi-Brault, Alfredo Blázquez Martínez +7
The most characteristic functional property of antiferroelectric materials is the possibility to induce a phase transition from a non-polar to a polar phase by an electric field. H…