Imaging and identification of atomic planes of cleaved Bi2Sr2CaCu2O8+δ by high resolution scanning tunneling microscopy

S. H. Pan, E. W. Hudson, J. Ma, J. C. Davis

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Imaging of the surface of a cleaved Bi2Sr2CaCu2O8+δ (BSCCO) single crystal with a scanning tunneling microscope reveals a series of repeating terraces, whose separations are then used to identify the atomic planes which are exposed. On each of the exposed planes, the incommensurate modulation is also clearly resolved with atomic resolution. The measured separations between the terraces lead to the deduction that any atomic layer can be exposed by mechanical cleavage of BSCCO. We, therefore, suggest that the identity of atomic planes, and the direction of tunneling, should always be taken into consideration when interpreting tunneling spectra obtained on such cleaved BSCCO crystals.

Original languageEnglish (US)
Pages (from-to)58-60
Number of pages3
JournalApplied Physics Letters
Volume73
Issue number1
DOIs
StatePublished - Dec 1 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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