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10 papers · 2 filters
NMR profiling of quantum electron solids in high magnetic fields
L. Tiemann, T. D. Rhone, N. Shibata +1
When the motion of electrons is restricted to a plane under a perpendicular magnetic field B, a variety of quantum phases emerge at low temperatures whose properties are dictated b…
Bilayer-induced asymmetric quantum Hall effect in epitaxial graphene
Andrea Iagallo, Shinichi Tanabe, Stefano Roddaro +8
The transport properties of epitaxial graphene on SiC(0001) at quantizing magnetic fields are investigated. Devices patterned perpendicularly to SiC terraces clearly exhibit bilaye…
Correlation between morphology and transport properties of quasi-free-standing monolayer graphene
Yuya Murata, Torge Mashoff, Makoto Takamura +4
We investigate the morphology of quasi-free-standing monolayer graphene (QFMLG) formed at several temperatures by hydrogen intercalation and discuss its relationship with transport…
Intrinsic and extrinsic decay of edge magnetoplasmons in graphene
N. Kumada, P. Roulleau, B. Roche +4
We investigate intrinsic and extrinsic decay of edge magnetoplasmons (EMPs) in graphene quantum Hall (QH) systems by high-frequency electronic measurements. From EMP resonances in…
Shot-noise evidence of fractional quasiparticle creation in a local fractional quantum Hall state
Masayuki Hashisaka, Tomoaki Ota, Koji Muraki +1
We have experimentally identified fractional quasiparticle creation in a tunneling process through a local fractional quantum Hall (FQH) state. The local FQH state is prepared in a…
Two-mode squeezing in an electromechanical resonator
I. Mahboob, H. Okamoto, K. Onomitsu +1
The widespread availability of quantum entanglement with photons, in the guise of two-mode squeezed states, can be attributed to the phenomenon of parametric down-conversion. A rei…