Dynamics of vortices in superconductors observed by electron waves

A. Tonomura, P. W. Hawkes, John Spence

Research output: Contribution to journalArticle

Abstract

Although, in electron microscopy, an object is usually observed by using the intensity of an electron beam transmitted through it, the phase distribution of the electron beam also provides different information about the object. It has been difficult, however, to obtain the phase information because of the low coherence of an electron beam. Recent development of a 'coherent' field emission electron beam and related techniques, such as electron holography, has provided a way to observe microscopic objects and fields by precisely measuring the phase information of an electron beam. It has, for example, become possible to observe the dynamics of individual vortices in superconducting thin films.

Original languageEnglish (US)
Pages (from-to)311-320
Number of pages10
JournalScanning Microscopy
Volume9
Issue number2
StatePublished - 1995
Externally publishedYes

Fingerprint

Superconducting materials
Electron beams
Vortex flow
electron beams
vortices
Electrons
electrons
Electron holography
Superconducting films
Field emission
holography
Electron microscopy
field emission
electron microscopy
thin films

Keywords

  • Aharonov-Bohm effect
  • electron holography
  • field- emission
  • Lorentz microscopy
  • magnetic domain structure
  • superconductor
  • Vortex

ASJC Scopus subject areas

  • Instrumentation

Cite this

Dynamics of vortices in superconductors observed by electron waves. / Tonomura, A.; Hawkes, P. W.; Spence, John.

In: Scanning Microscopy, Vol. 9, No. 2, 1995, p. 311-320.

Research output: Contribution to journalArticle

Tonomura, A. ; Hawkes, P. W. ; Spence, John. / Dynamics of vortices in superconductors observed by electron waves. In: Scanning Microscopy. 1995 ; Vol. 9, No. 2. pp. 311-320.
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