Eric Spanton
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View article: Fractional Chern insulator edges and layer-resolved lattice contacts
Fractional Chern insulator edges and layer-resolved lattice contacts Open
Fractional Chern insulators (FCIs) realized in fractional quantum Hall\nsystems subject to a periodic potential are topological phases of matter for\nwhich space group symmetries play an important role. In particular, lattice\ndislocations…
View article: Quantitative Transport Measurements of Fractional Quantum Hall Energy Gaps in Edgeless Graphene Devices
Quantitative Transport Measurements of Fractional Quantum Hall Energy Gaps in Edgeless Graphene Devices Open
Owing to their wide tunability, multiple internal degrees of freedom, and low disorder, graphene heterostructures are emerging as a promising experimental platform for fractional quantum Hall (FQH) studies. Here, we report FQH thermal acti…
View article: Emergent Dirac Gullies and Gully-Symmetry-Breaking Quantum Hall States in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>A</mml:mi><mml:mi>B</mml:mi><mml:mi>A</mml:mi></mml:math> Trilayer Graphene
Emergent Dirac Gullies and Gully-Symmetry-Breaking Quantum Hall States in Trilayer Graphene Open
We report on quantum capacitance measurements of high quality, graphite and hexagonal boron nitride encapsulated Bernal stacked trilayer graphene devices. At zero applied magnetic field, we observe a number of electron density- and electri…
View article: Fractional Chern insulator edges and layer-resolved lattice contacts
Fractional Chern insulator edges and layer-resolved lattice contacts Open
Fractional Chern insulators (FCIs) realized in fractional quantum Hall systems subject to a periodic potential are topological phases of matter for which space group symmetries play an important role. In particular, lattice dislocations in…
View article: Observation of fractional Chern insulators in a van der Waals heterostructure
Observation of fractional Chern insulators in a van der Waals heterostructure Open
Beyond fractional quantum Hall Unlike most electronic topological phenomena, the fractional quantum Hall effect requires correlations among electrons. Spanton et al. describe a class of related but even more unusual states, the fractional …
View article: Observation of fractional Chern insulators in a van der Waals heterostructure
Observation of fractional Chern insulators in a van der Waals heterostructure Open
Topologically ordered phases are characterized by long-range quantum entanglement and fractional statistics rather than by symmetry breaking. First observed in a fractionally filled continuum Landau level, topological order has since been …
View article: Edge transport in the trivial phase of InAs/GaSb
Edge transport in the trivial phase of InAs/GaSb Open
We present transport and scanning SQUID measurements on InAs/GaSb double\nquantum wells, a system predicted to be a two-dimensional topological\ninsulator. Top and back gates allow independent control of density and band\noffset, allowing …