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Imaging resonant dissipation from individual atomic defects in graphene
Dorri Halbertal, Moshe Ben Shalom, Aviram Uri +8
Conversion of electric current into heat involves microscopic processes that operate on nanometer length-scales and release minute amounts of power. While central to our understand…
Indirect excitons in van der Waals heterostructures at room temperature
E. V. Calman, M. M. Fogler, L. V. Butov +3
Indirect excitons (IXs) in van der Waals transition-metal dichalcogenide (TMD) heterostructures are characterized by a high binding energy making them stable at room temperature an…
Ultrathin graphene-based membrane with precise molecular sieving and ultrafast solvent permeation
Q. Yang, Y. Su, C. Chi +10
Graphene oxide (GO) membranes continue to attract intense interest due to their unique molecular sieving properties combined with fast permeation rates. However, the membranes' use…
Size effect in ion transport through angstrom-scale slits
A. Esfandiar, B. Radha, F. C. Wang +6
It has been an ultimate but seemingly distant goal of nanofluidics to controllably fabricate capillaries with dimensions approaching the size of small ions and water molecules. We…
Large tunable valley splitting in edge-free graphene quantum dots on boron nitride
Nils M. Freitag, Tobias Reisch, Larisa A. Chizhova +10
Coherent manipulation of binary degrees of freedom is at the heart of modern quantum technologies. Graphene offers two binary degrees: the electron spin and the valley. Efficient s…
High-temperature quantum oscillations caused by recurring Bloch states in graphene superlattices
R. Krishna Kumar, X. Chen, G. H. Auton +13
Cyclotron motion of charge carriers in metals and semiconductors leads to Landau quantization and magneto-oscillatory behavior in their properties. Cryogenic temperatures are usual…