Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference

The superconducting gap structure contains important information to understand the pairing mechanism of unconventional superconductivity. Here, by using a newly established phase-referenced quasiparticle interference technique, the authors visualize the sign change of the d-wave superconducting gap...

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Main Authors:	Qiangqiang Gu, Siyuan Wan, Qingkun Tang, Zengyi Du, Huan Yang, Qiang-Hua Wang, Ruidan Zhong, Jinsheng Wen, G. D. Gu, Hai-Hu Wen
Format:	Article
Language:	English
Published:	Nature Publishing Group 2019-04-01
Series:	Nature Communications
Online Access:	https://doi.org/10.1038/s41467-019-09340-5

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spelling	doaj-9d7faa0f31dc439a9f99627ba864c44a2021-05-11T11:43:35ZengNature Publishing GroupNature Communications2041-17232019-04-0110111010.1038/s41467-019-09340-5Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interferenceQiangqiang Gu0Siyuan Wan1Qingkun Tang2Zengyi Du3Huan Yang4Qiang-Hua Wang5Ruidan Zhong6Jinsheng Wen7G. D. Gu8Hai-Hu Wen9National Laboratory of Solid State Microstructures and Department of Physics, Center for Superconducting Physics and Materials, Collaborative Innovation Center for Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures and Department of Physics, Center for Superconducting Physics and Materials, Collaborative Innovation Center for Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures and Department of Physics, Center for Superconducting Physics and Materials, Collaborative Innovation Center for Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures and Department of Physics, Center for Superconducting Physics and Materials, Collaborative Innovation Center for Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures and Department of Physics, Center for Superconducting Physics and Materials, Collaborative Innovation Center for Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures and Department of Physics, Center for Superconducting Physics and Materials, Collaborative Innovation Center for Advanced Microstructures, Nanjing UniversityCondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, UptonCondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, UptonCondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, UptonNational Laboratory of Solid State Microstructures and Department of Physics, Center for Superconducting Physics and Materials, Collaborative Innovation Center for Advanced Microstructures, Nanjing UniversityThe superconducting gap structure contains important information to understand the pairing mechanism of unconventional superconductivity. Here, by using a newly established phase-referenced quasiparticle interference technique, the authors visualize the sign change of the d-wave superconducting gap directly in Bi2Sr2CaCu2O8+δ.https://doi.org/10.1038/s41467-019-09340-5
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Qiangqiang Gu Siyuan Wan Qingkun Tang Zengyi Du Huan Yang Qiang-Hua Wang Ruidan Zhong Jinsheng Wen G. D. Gu Hai-Hu Wen
spellingShingle	Qiangqiang Gu Siyuan Wan Qingkun Tang Zengyi Du Huan Yang Qiang-Hua Wang Ruidan Zhong Jinsheng Wen G. D. Gu Hai-Hu Wen Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference Nature Communications
author_facet	Qiangqiang Gu Siyuan Wan Qingkun Tang Zengyi Du Huan Yang Qiang-Hua Wang Ruidan Zhong Jinsheng Wen G. D. Gu Hai-Hu Wen
author_sort	Qiangqiang Gu
title	Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference
title_short	Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference
title_full	Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference
title_fullStr	Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference
title_full_unstemmed	Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference
title_sort	directly visualizing the sign change of d-wave superconducting gap in bi2sr2cacu2o8+δ by phase-referenced quasiparticle interference
publisher	Nature Publishing Group
series	Nature Communications
issn	2041-1723
publishDate	2019-04-01
description	The superconducting gap structure contains important information to understand the pairing mechanism of unconventional superconductivity. Here, by using a newly established phase-referenced quasiparticle interference technique, the authors visualize the sign change of the d-wave superconducting gap directly in Bi2Sr2CaCu2O8+δ.
url	https://doi.org/10.1038/s41467-019-09340-5
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Directly visualizing the sign change of d-wave superconducting gap in Bi2Sr2CaCu2O8+δ by phase-referenced quasiparticle interference

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