Vortex interaction enhanced saturation number and caging effect in a superconducting film with a honeycomb array of nanoscale holes

M. L. Latimer, G. R. Berdiyorov, Z. L. Xiao, W. K. Kwok, F. M. Peeters

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The electrical transport properties of a MoGe thin film with a honeycomb array of nanoscale holes are investigated. The critical current of the system shows nonmatching anomalies as a function of applied magnetic field, enabling us to distinguish between multiquanta vortices trapped in the holes and interstitial vortices located between the holes. The number of vortices trapped in each hole is found to be larger than the saturation number predicted for an isolated hole and shows a nonlinear field dependence, leading to the caging effect as predicted from the Ginzburg-Landau (GL) theory. Our experimental results are supplemented by numerical simulations based on the GL theory.

Original languageEnglish
Article number012505
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number1
DOIs
Publication statusPublished - 26 Jan 2012
Externally publishedYes

Fingerprint

Superconducting films
superconducting films
Vortex flow
vortices
saturation
trapped vortices
Critical currents
interactions
Transport properties
Magnetic fields
Thin films
Computer simulation
critical current
interstitials
transport properties
anomalies
thin films
magnetic fields
simulation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Vortex interaction enhanced saturation number and caging effect in a superconducting film with a honeycomb array of nanoscale holes. / Latimer, M. L.; Berdiyorov, G. R.; Xiao, Z. L.; Kwok, W. K.; Peeters, F. M.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 1, 012505, 26.01.2012.

Research output: Contribution to journalArticle

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