Vortex images in thin films of YBa2Cu3O7-x and Bi2Sr2Ca1Cu2O8+x obtained by low-temperature magnetic force microscopy

C. W. Yuan, Z. Zheng, A. L. De Lozanne, M. Tortonese, D. A. Rudman, J. N. Eckstein

Research output: Contribution to journalArticle

Abstract

We have imaged vortices in superconducting thin films with a low-temperature magnetic force microscope that utilizes microfabricated piezoresistive cantilevers with built-in tips. The films of YBa2Cu3O7-x and Bi2Sr2Ca1Cu2O8+x, are made by laser ablation and molecular beam epitaxy, respectively. The vortices usually appear as round features in the noncontact image with a diameter of about 1 μm or slightly less. In some cases the position of the vortices is correlated to defects observed in the topographic image of the same area. The vortices move sometimes, especially after taking a topographic (contact mode) scan.

Original languageEnglish (US)
Pages (from-to)1210-1213
Number of pages4
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume14
Issue number2
StatePublished - Mar 1 1996
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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