Low-temperature STM/STS of high-Tc superconductors

M. Maki, T. Nishizaki, K. Shibata, Takahiko Sasaki, N. Kobayashi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We have carried out low-temperature scanning tunneling microscopy and spectroscopy studies on high-Tc superconductors, Bi2Sr2CaCu2O8+δ and YBa2Cu3O7-δ single crystals. We present an experimental method and STM/STS results of these materials. Samples were cleaved below 20 K in order to obtain clean surfaces. For YBa2Cu3O7-δ, we observe an atomic image of BaO and charge density waves image on the CuO chain layer. Differential tunneling conductance spectrum of YBa2Cu3O7-δ has a clear superconducting energy gap along 100 nm path.

Original languageEnglish
Pages (from-to)291-293
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume357-360
DOIs
Publication statusPublished - 2001 Jan 1

Keywords

  • BiSrCaCuO
  • Charge density wave
  • Scanning tunneling microscopy
  • Scanning tunneling spectroscopy
  • YBaCuO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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