Magnetic flux quantum as a sub-pico-Newton weight

Jae Hyuk Choi, Mahn Soo Choi, Min Seok Kim, Yon Kyu Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We suggest flux quantum-based force realization in the sub-pico-Newton range. By controlling the number of flux quantum in a superconducting ring, a force can be created as an integer multiple of a constant force step. For a 70 nmthick Nb ring with the inner and outer radii of 5 μm and 10 μm, respectively, the force step is estimated to be 186 fN, assuming the magnetic field gradient of 10 T/m. We also estimated a maximum force limit and addressed the stability of force realization against thermal fluctuation.

Original languageEnglish
Title of host publicationKorea Research Institute of Standards and Science (KRISS) - Asia-Pacific Symposium on Measurement of Mass, Force and Torque, APMF 2005
Pages99-104
Number of pages6
Publication statusPublished - 2005
EventAsia-Pacific Symposium on Measurement of Mass, Force and Torque, APMF 2005 - Jeju, Korea, Republic of
Duration: 2005 Aug 302005 Sep 3

Publication series

NameKorea Research Institute of Standards and Science (KRISS) - Asia-Pacific Symposium on Measurement of Mass, Force and Torque, APMF 2005

Other

OtherAsia-Pacific Symposium on Measurement of Mass, Force and Torque, APMF 2005
CountryKorea, Republic of
CityJeju
Period05/8/3005/9/3

Keywords

  • Force realization
  • Magnetic flux quantum
  • Sub-pico-Newton
  • Superconducting ring
  • Ultra-soft cantilever

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanical Engineering

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  • Cite this

    Choi, J. H., Choi, M. S., Kim, M. S., & Park, Y. K. (2005). Magnetic flux quantum as a sub-pico-Newton weight. In Korea Research Institute of Standards and Science (KRISS) - Asia-Pacific Symposium on Measurement of Mass, Force and Torque, APMF 2005 (pp. 99-104). (Korea Research Institute of Standards and Science (KRISS) - Asia-Pacific Symposium on Measurement of Mass, Force and Torque, APMF 2005).