Ultra low noise YBCO nanoSQUIDs implementing nanowires

Riccardo Arpaia; Marco Arzeo; Shahid Nawaz; Sophie Charpentier; Floriana Lombardi; Thilo Bauch

doi:10.1063/1.4866277

Ultra low noise YBCO nanoSQUIDs implementing nanowires

Superconductivity 2014-03-07 v1

Authors: Riccardo Arpaia , Marco Arzeo , Shahid Nawaz , Sophie Charpentier , Floriana Lombardi , Thilo Bauch

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Abstract

We present results on ultra low noise YBa $_2$ Cu $_3$ O $_{7-\delta}$ nano Superconducting QUantum Interference Devices (nanoSQUIDs). To realize such devices, we implemented high quality YBCO nanowires, working as weak links between two electrodes. We observe critical current modulation as a function of an externally applied magnetic field in the full temperature range below the transition temperature $T_C$ . The white flux noise below 1 $\mu \Phi_0/\sqrt{\mathrm{Hz}}$ at T = 8 K makes our nanoSQUIDs very attractive for the detection of small spin systems.

Keywords

superconducting quantum interference devices nanowire physics superconducting radio frequency cavities

Cite

@article{arxiv.1401.6990,
  title  = {Ultra low noise YBCO nanoSQUIDs implementing nanowires},
  author = {Riccardo Arpaia and Marco Arzeo and Shahid Nawaz and Sophie Charpentier and Floriana Lombardi and Thilo Bauch},
  journal= {arXiv preprint arXiv:1401.6990},
  year   = {2014}
}

Comments

11 pages, 4 figures, submitted to Appl. Phys. Lett. 25/01/2014

Ultra low noise YBCO nanoSQUIDs implementing nanowires

Abstract

Keywords

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