Nanoscale interplay of strain and doping in a high-temperature superconductor
- Harvard Univ., Cambridge, MA (United States); Boston College, Chestnut Hills, MA (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Tampere Univ. of Technology (Finland); Northeastern Univ., Boston, MA (United States)
- Harvard Univ., Cambridge, MA (United States)
- National Tsing Hua Univ., Hsinchu (Taiwan)
- National Tsing Hua Univ., Hsinchu (Taiwan); Academia Sinica, Taipei (Taiwan)
- Academia Sinica, Taipei (Taiwan); Northeastern Univ., Boston, MA (United States)
- Northeastern Univ., Boston, MA (United States)
The highest temperature superconductors are electronically inhomogeneous at the nanoscale, suggesting the existence of a local variable which 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 intra-unit-cell positions of all oxygen dopants provides essential structural input for a complete microscopic theory.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC00112704
- OSTI ID:
- 1182521
- Report Number(s):
- BNL-107519-2015-JA; R&D Project: PO010; KC0201060
- Journal Information:
- Nano Letters, Vol. 14, Issue 12; ISSN 1530-6984
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 19 works
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