Hysteresis and intermittency in a nano-bridge based suspended DC-SQUID

Eran Segev; Oren Suchoi; Oleg Shtempluck; Fei Xue; Eyal Buks

Hysteresis and intermittency in a nano-bridge based suspended DC-SQUID

Superconductivity 2010-10-22 v1 Quantum Physics

Authors: Eran Segev , Oren Suchoi , Oleg Shtempluck , Fei Xue , Eyal Buks

Abstract

We study voltage response of nano-bridge based DC-SQUID fabricated on a Si\_{3}N\_{4} membrane. Such a configuration may help in reducing 1/f noise, which originates from substrate fluctuating defects. We find that the poor thermal coupling between the DC-SQUID and the substrate leads to strong hysteretic response of the SQUID, even though it is biased by an alternating current. In addition, when the DC-SQUID is biased near a threshold of spontaneous oscillations, the measured voltage has an intermittent pattern, which depends on the applied magnetic flux through the SQUID.

Cite

@article{arxiv.1010.4391,
  title  = {Hysteresis and intermittency in a nano-bridge based suspended DC-SQUID},
  author = {Eran Segev and Oren Suchoi and Oleg Shtempluck and Fei Xue and Eyal Buks},
  journal= {arXiv preprint arXiv:1010.4391},
  year   = {2010}
}

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