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5 papers · 2 filters
Characterization of graphene through anisotropy of constant-energy maps in angle-resolved photoemission
M. Mucha-Kruczynski, O. Tsyplyatyev, A. Grishin +4
We show theoretically how constant-energy maps of the angle-resolved photoemission intensity can be used to test wave function symmetry in graphene. For monolayer graphene, we demo…
Trapped Fermi Gases in Rotating Optical Lattices: Realization and Detection of the Topological Hofstadter Insulator
R. O. Umucalilar, Hui Zhai, M. O. Oktel
We consider a gas of non-interacting spinless fermions in a rotating optical lattice and calculate the density profile of the gas in an external confinement potential. The density…
Quantum non-demolition measurements of single donor spins in semiconductors
Mohan Sarovar, Kevin C. Young, Thomas Schenkel +1
We propose a technique for measuring the state of a single donor electron spin using a field-effect transistor induced two-dimensional electron gas and electrically detected magnet…
Excitonic Effects in the Optical Spectra of Graphene Nanoribbons
Li Yang, Marvin L. Cohen, Steven G. Louie
We present a first-principles calculation of the optical properties of armchair-edged graphene nanoribbons (AGNRs) with many-electron effects included. The reduced dimensionality o…
On the roughness of single- and bi-layer graphene membranes
J. C. Meyer, A. K. Geim, M. I. Katsnelson +5
We present a detailed transmission electron microscopy and electron diffraction study of the thinnest possible membrane, a single layer of carbon atoms suspended in vacuum and atta…