0000000000246522

AUTHOR

Yu. A. Pashkin

showing 2 related works from this author

Fabrication and characterization of chromium based single-electron transistors with evaporated chromium oxide barrier tunnel junctions

1999

We fabricated chromium based single-electron transistors comprising small-area Cr/CrOx/Cr tunnel junctions with an evaporated chromium oxide barrier. The transistors are fabricated using e-beam lithography with a bilayer resist and two-angle shadow evaporation. We describe the fabrication process and discuss the device characteristics.

Materials scienceFabricationChromium Compoundsbusiness.industryBilayerGeneral Engineeringchemistry.chemical_elementNanotechnologyEvaporation (deposition)ChromiumResistchemistryOptoelectronicsbusinessLithographyElectron-beam lithographyJournal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures
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Coherent quantum phase slip

2012

A hundred years after discovery of superconductivity, one fundamental prediction of the theory, the coherent quantum phase slip (CQPS), has not been observed. CQPS is a phenomenon exactly dual to the Josephson effect: whilst the latter is a coherent transfer of charges between superconducting contacts, the former is a coherent transfer of vortices or fluxes across a superconducting wire. In contrast to previously reported observations of incoherent phase slip, the CQPS has been only a subject of theoretical study. Its experimental demonstration is made difficult by quasiparticle dissipation due to gapless excitations in nanowires or in vortex cores. This difficulty might be overcome by usin…

SuperconductivityJosephson effectPhysicsMultidisciplinaryta114Condensed matter physicsSuperconducting wireCondensed Matter - SuperconductivityNanowireFOS: Physical sciencesengineering.materialSuperconductivity (cond-mat.supr-con)Quantum stateQuantum mechanicsCondensed Matter::SuperconductivityQuasiparticleengineeringQuantum metrologyQuantum tunnelling
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