292 citations · 701 across the 11 of their papers we have counts for
7 papers · 1 filter
Stabilization of competing ferroelectric phases of HfO under epitaxial strain
Yubo Qi, Sobhit Singh, Claudia Lau +6
Hafnia (HfO)-based thin films have promising applications in nanoscale electronic devices due to their robust ferroelectricity and integration with silicon. However, HfO ha…
Suppression of the Spectral Weight of Topological Surface States on the Nanoscale via Local Symmetry Breaking
Omur E. Dagdeviren, Subhasish Mandal, Ke Zou +7
In topological crystalline insulators the topological conducting surface states are protected by crystal symmetry, in principle making it possible to pattern nanoscale insulating a…
Reversible modulation of orbital occupations via an interface-induced state in metallic manganites
Hanghui Chen, Qiao Qiao, Matthew S. J. Marshall +7
The breaking of orbital degeneracy on a transition metal cation and the resulting unequal electronic occupations of these orbitals provide a powerful lever over electron density an…
Active silicon integrated nanophotonics: ferroelectric BaTiO3 devices
Chi Xiong, Wolfram H. P. Pernice, Joseph H. Ngai +5
The integration of complex oxides on silicon presents opportunities to extend and enhance silicon technology with novel electronic, magnetic, and photonic properties. Among these m…
Hysteretic electrical transport in BaTiO/BaSrTiO/Ge heterostructures
J. H. Ngai, D. P. Kumah, C. H. Ahn +1
We present electrical transport measurements of heterostructures comprised of BaTiO and BaSrTiO epitaxially grown on Ge. The Sr-alloying imparts compressive str…
Modifying the Electronic Orbitals of Nickelate Heterostructures Via Structural Distortions
Hanghui Chen, Divine P. Kumah, Ankit S. Disa +3
We describe a general materials design approach that produces large orbital energy splittings (orbital polarization) in nickelate heterostructures, creating a two-dimensional singl…
Electric Field Tuned Dimensional Crossover in Ar-Irradiated SrTiO3
J. H. Ngai, Y. Segal, F. J. Walker +3
We present low temperature magnetoresistance measurements of Ar-irradiated SrTiO3 under an applied electrostatic field. The electric field, applied through a back gate bias, modula…