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4 papers · 2 filters
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…
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…
Josephson coupling through one-dimensional ballistic channel in semiconductor-superconductor hybrid quantum point contacts
Hiroshi Irie, Yuichi Harada, Hiroki Sugiyama +1
We study a superconducting quantum point contact made of a narrow InGaAs channel with Nb proximity electrodes. The narrow channel is formed in a gate-fitted con…
Phononic crystal waveguides for electromechanical circuits
Daiki Hatanaka, Imran Mahboob, Koji Onomitsu +1
Nanoelectromechanical systems (NEMS), utilising localised mechanical vibrations, were pioneered for sensors, signal processors and to study macroscopic quantum mechanics. Increasin…