Jeremy Levy
University of Pittsburgh, PA·Physics
Stacking two very thin crystal layers with a slight twist creates a moiré pattern. This is a repeating interference pattern, like the one seen when two window screens overlap.
- Fields
Physics
Materials Science
- Topics
moiré materials
twisted heterostructures
complex oxides
- Grants
- 1 known grant, through Sep 2029
What they work on
- Create twisted heterostructures from free-standing complex oxide membranes and use moiré periodicity and atomic alignment as design parameters for new electronic, magnetic and structural phases.
- Search for two-dimensional polarization-vortex crystals and topological spin textures at twisted oxide interfaces, guided by theoretical modeling and data analytics.
- Probe flat electronic bands at large twist angles, coupled quantum dot arrays and strain-tunable interfacial electron and hole gases using Quantum Twisting Microscopy for nanoscale momentum-resolved spectroscopy.
More about the research
At the interface, the twist changes how atoms line up and how electrons behave. The result can be electronic, magnetic or structural behavior that neither layer has alone. This collaborative U.S.–Israel project applies that idea to complex oxides, a family of materials with rich electronic and magnetic properties. The team makes these oxides as free-standing membranes that can be lifted off and stacked.
Why it matters
Twisting and stacking oxide layers offers a new way to engineer materials with tailored electronic and magnetic properties. The basic understanding gained here could eventually inform materials for quantum and electronic devices. It also gives materials scientists new design rules, using twist angle and atomic alignment, for creating functions not found in ordinary oxide films.
Known grants
From NIH and NSF research grants. Labs often have other funding we can't see.
Closest labs
Christian Binek
University of Nebraska-Lincoln, NE·Physics
Engineer interfaces in oxide and van der Waals layered stacks to control magnetic and electric order, defects and spin textures, aiming at memristive devices and neuromorphic, brain-inspired computing.
Derek Meyers
Oklahoma State University, OK·Physics·Early-career
Synthesize ruthenate heterostructures confined along atypical crystallographic orientations by pulsed laser deposition, adapting growth to stabilize the films despite polarity mismatch between stacked oxide layers.
Jedediah Pixley
Rutgers University-New Brunswick, NJ·Physics
Determine how twist-angle disorder, the place-to-place variation in twist, alters electronic response in twisted bilayer graphene and twisted transition-metal dichalcogenide bilayers, using kernel polynomial calculations on large disordered models.
The school
University of Pittsburgh: 83 labs on PI Pages, $1.5B a year on research, 403 research doctorates a year.
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