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Title: Direct visualization of a static incommensurate antiferromagnetic order in Fe-doped Bi 2 Sr 2 CaCu 2 O 8+δ

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
ORCiD logo [1]; ORCiD logo [1];  [2];  [1]; ORCiD logo [1];  [1];  [2];  [3];  [1]
  1. National Laboratory of Solid State Microstructures and Department of Physics, Center for Superconducting Physics and Materials, Collaborative Innovation Center for Advanced Microstructures, Nanjing University, Nanjing 210093, China,
  2. Institut für Theoretische Physik III, Ruhr-Universität Bochum, D-44801 Bochum, Germany,
  3. Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973

In cuprate superconductors, due to strong electronic correlations, there are multiple intertwined orders which either coexist or compete with superconductivity. Among them, the antiferromagnetic (AF) order is the most prominent one. In the region where superconductivity sets in, the long-range AF order is destroyed. Yet the residual short-range AF spin fluctuations are present up to a much higher doping, and their role in the emergence of the superconducting phase is still highly debated. Here, by using a spin-polarized scanning tunneling microscope, we directly visualize an emergent incommensurate AF order in the nearby region of Fe impurities embedded in the optimally doped Bi2Sr2CaCu2O8+δ (Bi2212). Remarkably, the Fe impurities suppress the superconducting coherence peaks with the gapped feature intact, but pin down the ubiquitous short-range incommensurate AF order. Further, our work shows an intimate relation between antiferromagnetism and superconductivity.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
DOE-sc0012704; SC0012704
OSTI ID:
1836165
Alternate ID(s):
OSTI ID: 1842801
Report Number(s):
BNL-222667-2022-JAAM; e2115317118
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Vol. 118 Journal Issue: 51; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

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