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16 papers
Strain Engineering a Charge Density Wave Phase in Transition Metal Dichalcogenide 1T-VSe
Duming Zhang, Jeonghoon Ha, Hongwoo Baek +10
We report a rectangular charge density wave (CDW) phase in strained 1T-VSe thin films synthesized by molecular beam epitaxy on c-sapphire substrates. The observed CDW structure…
An On/Off Berry Phase Switch in Circular Graphene Resonators
Fereshte Ghahari, Daniel Walkup, Christopher Gutiérrez +10
The phase of a quantum state may not return to its original value after the system's parameters cycle around a closed path; instead, the wavefunction may acquire a measurable phase…
Scanning Tunneling Spectroscopy of Proximity Superconductivity in Epitaxial Multilayer Graphene
Fabian D. Natterer, Jeonghoon Ha, Hongwoo Baek +5
We report on spatial measurements of the superconducting proximity effect in epitaxial graphene induced by a graphene-superconductor interface. Superconducting aluminum films were…
Thickness and growth-condition dependence of \emph{in-situ} mobility and carrier density of epitaxial thin-film BiSe
Jack Hellerstedt, Mark Edmonds, J. H. Chen +3
Bismuth selenide BiSe was grown by molecular beam epitaxy while carrier density and mobility were measured directly \emph{in situ} as a function of film thickness. Carrier…
Princess and the Pea at the nanoscale: Wrinkling and delamination of graphene on nanoparticles
Mahito Yamamoto, Olivier Pierre-Louis, Jia Huang +3
Thin membranes exhibit complex responses to external forces or geometrical constraints. A familiar example is the wrinkling, exhibited by human skin, plant leaves, and fabrics, res…
Tunable Kondo Effect in Graphene with Defects
Jian-Hao Chen, W. G. Cullen, E. D. Williams +1
Graphene is a model system for the study of electrons confined to a strictly two-dimensional layer1 and a large number of electronic phenomena have been demonstrated in graphene, f…