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EnglishIn this paper, Superconducting QUantum Interference Devices (SQUIDs) based on single layer Nb nanobridge Josephson junctions are described. Devices, with loop area ranging from 4 to 0.5 mu m(2), have been patterned by Electron Beam Lithography (EBL) in a 20 nm thick Nb layer, achieving a responsivity of about 30 mu A/Phi(0). Magnetization measurements have been performed via switching current measurements at a temperature T = 4.2 K. Preliminary detection of Silica-magnetite (Fe3O4-SiO2) core/shell nanoparticle cluster has been proven.
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| Titolo: | Nano Superconducting QUantum Interference Device Sensors for Magnetic Nanoparticle Detection |
| Autori: | |
| Data di pubblicazione: | 2012 |
| Rivista: | |
| Abstract: | In this paper, Superconducting QUantum Interference Devices (SQUIDs) based on single layer Nb nanobridge Josephson junctions are described. Devices, with loop area ranging from 4 to 0.5 mu m(2), have been patterned by Electron Beam Lithography (EBL) in a 20 nm thick Nb layer, achieving a responsivity of about 30 mu A/Phi(0). Magnetization measurements have been performed via switching current measurements at a temperature T = 4.2 K. Preliminary detection of Silica-magnetite (Fe3O4-SiO2) core/shell nanoparticle cluster has been proven. |
| Handle: | http://hdl.handle.net/11584/90909 |
| Tipologia: | 1.1 Articolo in rivista |
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