Journal of Low Temperature Physics

, Volume 184, Issue 1, pp 11–16

Electrical Characteristics of Superconducting Ti Transition Edge Sensors

  • W. Zhang
  • J. Q. Zhong
  • W. Miao
  • Z. Wang
  • D. Liu
  • Q. J. Yao
  • S. C. Shi
  • T. J. Chen
  • M. J. Wang
Article

DOI: 10.1007/s10909-015-1352-4

Cite this article as:
Zhang, W., Zhong, J.Q., Miao, W. et al. J Low Temp Phys (2016) 184: 11. doi:10.1007/s10909-015-1352-4

Abstract

We have designed and fabricated superconducting Ti transition edge sensors (TES) with different microbridge lengths varying from 1 to 6 \(\upmu \)m. The current–voltage characteristics of the fabricated Ti TESs are measured at different bath temperatures using a commercial SQUID amplifier. The thermal conductance (G) is found to be about 300 pW/K for a 2.6-\(\upmu \)m-long device. In addition, the effective response time measured with a current pulse signal is about 3 \(\upmu \)s, and decreases with increasing the bias voltage because of negative electro-thermal feedback. The obtained electrical noise equivalent power from the measured current noise is about \(4 \times 10^{-17}\) W/Hz\(^{0.5}\), which is sufficiently low for TeSIA instrument.

Keywords

Transition edge sensor Thermal conductance Noise equivalent power 

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • W. Zhang
    • 1
    • 2
  • J. Q. Zhong
    • 1
    • 2
  • W. Miao
    • 1
    • 2
  • Z. Wang
    • 1
    • 2
  • D. Liu
    • 1
    • 2
  • Q. J. Yao
    • 1
    • 2
  • S. C. Shi
    • 1
    • 2
  • T. J. Chen
    • 3
  • M. J. Wang
    • 3
  1. 1.Purple Mountain ObservatoryCASNanjingChina
  2. 2.Key Lab of Radio AstronomyCASNanjingChina
  3. 3.Institute of Astronomy and AstrophysicsAcademia SinicaTaipeiTaiwan

Personalised recommendations