Nanoscale interplay of strain and doping in a high-temperature superconductor

Ilija Zeljkovic, Jouko Nieminen, Dennis Huang, Tay Rong Chang, Yang He, Horng Tay Jeng, Zhijun Xu, Jinsheng Wen, Genda Gu, Hsin Lin, Robert S. Markiewicz, Arun Bansil, Jennifer E. Hoffman

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


The highest-temperature superconductors are electronically inhomogeneous at the nanoscale, suggesting the existence of a local variable that could be harnessed to enhance the superconducting pairing. Here we report the relationship between local doping and local strain in the cuprate superconductor Bi2Sr2CaCu2O8+x. We use scanning tunneling microscopy to discover that the crucial oxygen dopants are periodically distributed in correlation with local strain. Our picoscale investigation of the intraunit-cell positions of all oxygen dopants provides essential structural input for a complete microscopic theory.

Original languageEnglish
Pages (from-to)6749-6753
Number of pages5
JournalNano letters
Issue number12
Publication statusPublished - 2014 Dec 10

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


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