3 papers
cond-mat.mtrl-sci2025
An underdog story: Re-emergence of a polar instability at high pressure in KNbO3
Mohamad Baker Shoker, Sitaram Ramakrishnan, Boris Croes +12
Ferroelectricity in perovskites is known to be suppressed by a moderate hydrostatic pressure. The notion that a polar instability should reappear in a higher pressure regime is wel…
cond-mat.mes-hall2025
Carrier Thermalization and Biexciton Formation in a Polar ZnO/ZnMgO Quantum Well Probed by Ultrafast Broadband Spectroscopy
Daniel O. Siebadji Tchuimeni, Marc Ziegler, Olivier Crégut +4
We investigate the ultrafast dynamics of excitons in a 2.6 nm-thick quantum well grown on a c-axis sapphire substrate, using non-degenerate time-…
cond-mat.mtrl-sci2022
Impact of 3D curvature on the polarization orientation in non-Ising domain walls
Ulises Acevedo-Salas, Boris Croes, Yide Zhang +11
Ferroelectric domain boundaries are quasi-two-dimensional functional interfaces with high prospects for nanoelectronic applications. Despite their reduced dimensionality, they can…