Niobium diselenide superconducting photodetectors

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Date
2019
Authors
Orchin, Gavin J.
De Fazio, Domenico
Hamer, Matthew
Yoon, Duhee
Cadore, Alisson R.
Goykhman, Ilya
Watanabe, Kenji
Taniguchi, Takashi
Robinson, Jason W. A.
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10.1063/1.5097389
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1903.02528
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Applied Physics Letters ; 114 (2019), 25. - 251103. - ISSN 0003-6951. - eISSN 1077-3118
Abstract
We report the photoresponse of niobium diselenide (NbSe2), a transition metal dichalcogenide (TMD) which exhibits superconducting properties down to a single layer. Devices are built by using micro-mechanically cleaved 2 to 10 layers and tested under current bias using nano-optical mapping in the 350mK-5K range, where they are found to be superconducting. The superconducting state can be broken by absorption of light, resulting in a voltage signal when the devices are current biased. The response found to be energy dependent making the devices useful for applications requiring energy resolution, such as bolometry, spectroscopy and infrared imaging.
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ISO 690ORCHIN, Gavin J., Domenico DE FAZIO, Angelo DI BERNARDO, Matthew HAMER, Duhee YOON, Alisson R. CADORE, Ilya GOYKHMAN, Kenji WATANABE, Takashi TANIGUCHI, Jason W. A. ROBINSON, 2019. Niobium diselenide superconducting photodetectors. In: Applied Physics Letters. 114(25), 251103. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.5097389
BibTex
@article{Orchin2019-03-06T18:07:08ZNiobi-47360,
  year={2019},
  doi={10.1063/1.5097389},
  title={Niobium diselenide superconducting photodetectors},
  number={25},
  volume={114},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Orchin, Gavin J. and De Fazio, Domenico and Di Bernardo, Angelo and Hamer, Matthew and Yoon, Duhee and Cadore, Alisson R. and Goykhman, Ilya and Watanabe, Kenji and Taniguchi, Takashi and Robinson, Jason W. A.},
  note={Article Number: 251103}
}
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