236 citations · 895 across the 26 of their papers we have counts for
26 papers
Disentangling pre-transitional fluctuations in metallic VO2
Javier del Valle, Carl Willem Rischau, Artem Korshunov +8
VO2 features concomitant structural and metal-insulator transitions. This poses a challenge for understanding the underlying mechanism: is the transition triggered by a structural…
Electron-Beam Writing of Atomic-Scale Reconstructions at Oxide Interfaces
Greta Segantini, Chih-Ying Hsu, Carl Willem Rischau +6
The epitaxial growth of complex oxides enables the production of high-quality films, yet substrate choice is restricted to certain symmetry and lattice parameters, thereby limiting…
Highly confined epsilon-near-zero- and surface-phonon polaritons in SrTiO3 membranes
Ruijuan Xu, Iris Crassee, Hans A. Bechtel +13
Recent theoretical studies have suggested that transition metal perovskite oxide membranes can enable surface phonon polaritons in the infrared range with low loss and much stronge…
Thermal and electrostatic tuning of surface phonon-polaritons in LaAlO3/SrTiO3 heterostructures
Yixi Zhou, Adrien Waelchli, Margherita Boselli +12
Phonon polaritons are promising for infrared applications due to a strong light-matter coupling and subwavelength energy confinement they offer. Yet, the spectral narrowness of the…
Anomalous T-dependence of phonon lifetimes in metallic VO2
Carl Willem Rischau, Artem Korshunov, Volodymyr Multian +9
We investigate phonon lifetimes in VO2 single crystals. We do so in the metallic state above the metal-insulator transition (MIT), where strong structural fluctuations are known to…
Structural Phase Transition and Superconductivity in 2H-BaGaGe with Buckled Honeycomb Layers
Dorota I. Walicka, Robin Lefevre, Olivier Blacque +5
We report on the structural and superconducting properties of the intermetallic compound BaGaGe. We find that this material undergoes a structural second-order phase transition fro…