Tip-induced excitation of a single vortex in nano-size superconductors using scanning tunneling microscopy

Takahiro Nishio, Shizeng Lin, Toshu An, Toyoaki Eguchi, Yukio Hasegawa

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A single vortex is excited into nano-size Pb superconducting island structures by a local current injection from a probe tip of a scanning tunneling microscope. For the excitation, a sufficient amount and duration of the pulsed current are required. Injecting the current at peripheral sites is more effective than the center for the vortex excitation. Time-dependent Ginzburg-Landau calculations suggest that a current-induced normal-state area, which can be nucleated by the tunneling current exceeding the critical current and expanded by the Joule heating, reduces the required magnetic field for the vortex penetration and excites a vortex into the islands.

Original languageEnglish
Article number465704
JournalNanotechnology
Volume21
Issue number46
DOIs
Publication statusPublished - 2010 Nov 19
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Fingerprint

Dive into the research topics of 'Tip-induced excitation of a single vortex in nano-size superconductors using scanning tunneling microscopy'. Together they form a unique fingerprint.

Cite this