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Family of graphene-based superconducting devices

Mikhail Tarasov (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik) ; Niclas Lindvall (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik) ; Leonid Kuzmin (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik) ; Avgust Yurgens (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik)
JETP Letters (0021-3640). Vol. 94 (2011), 4, p. 329-332.
[Artikel, refereegranskad vetenskaplig]

A family of highly sensitive devices based on a graphene nanobridge and superconducting electrodes has been developed, manufactured, and examined. These devices can be used to create a graphene-based integral receiver. A cold-electron bolometer prototype with superconductor-insulator-normal metal tunnel junctions has been studied. Its response to a change in the temperature and external microwave radiation has been measured. A superconducting quantum interferometer with a graphene strip as a weak coupling between superconducting electrodes has been examined. The corresponding modulation of the voltage by a magnetic field at a given current has been measured. The effect of the gate voltage on the resistance of graphene has been analyzed for these samples. To confirm that graphene is single-layer, measurements with the reference samples were performed in high magnetic fields, displaying the half-integer quantum Hall effect.



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Denna post skapades 2011-11-02. Senast ändrad 2015-12-17.
CPL Pubid: 148040

 

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