6 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…
Probing the quantum metric of 3D topological insulators
Giacomo Sala, Emanuele Longo, Maria Teresa Mercaldo +5
The surface states of 3D topological insulators possess geometric structures that imprint distinctive signatures on electronic transport. A prime example is the Berry curvature, wh…
The quantum metric of electrons with spin-momentum locking
Giacomo Sala, Maria Teresa Mercaldo, Klevis Domi +4
Quantum materials are characterized by electromagnetic responses intrinsically linked to the geometry and topology of electronic wavefunctions, encoded in the quantum metric and Be…
Electric field control of superconducting fluctuations and quasiparticle interference at oxide interfaces
Graham Kimbell, Ulderico Filippozzi, Stefano Gariglio +4
We investigate tunable superconducting transitions in (111) field-effect devices. Large increases in conductivity, associated with superconducting…
Curvature-Controlled Polarization in Adaptive Ferroelectric Membranes
Greta Segantini, Ludovica Tovaglieri, Chang Jae Roh +12
In this study, we explore the ferroelectric domain structure and mechanical properties of PbTiO-based membranes, which develops a well-ordered and crystallographic-oriented rip…
Engineering Symmetry Breaking Interfaces by Nanoscale Structural-Energetics in Orthorhombic Perovskite Thin Films
Duncan T. L. Alexander, Hugo Meley, Michael Marcus Schmitt +4
The atomic configuration of phases and their interfaces is fundamental to materials design and engineering. Here, we unveil a transition metal oxide interface, whose formation is d…