Scattering interference signature of a pair density wave state in the cuprate pseudogap phase
An unidentified quantum fluid designated the pseudogap (PG) phase is produced by electron-density depletion in the CuO2 antiferromagnetic insulator. Current theories suggest that the PG phase may be a pair density wave (PDW) state characterized by a spatially modulating density of electron pairs. Su...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Springer Nature
2021
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| _version_ | 1797095326739333120 |
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| author | Wang, S Choubey, P Chong, YX Chen, W Ren, W Eisaki, H Uchida, S Hirschfeld, PJ Davis, JCS |
| author_facet | Wang, S Choubey, P Chong, YX Chen, W Ren, W Eisaki, H Uchida, S Hirschfeld, PJ Davis, JCS |
| author_sort | Wang, S |
| collection | OXFORD |
| description | An unidentified quantum fluid designated the pseudogap (PG) phase is produced by electron-density depletion in the CuO2 antiferromagnetic insulator. Current theories suggest that the PG phase may be a pair density wave (PDW) state characterized by a spatially modulating density of electron pairs. Such a state should exhibit a periodically modulating energy gap ΔP(r) in real-space, and a characteristic quasiparticle scattering interference (QPI) signature ΛP(q) in wavevector space. By studying strongly underdoped Bi2Sr2CaDyCu2O8 at hole-density ~0.08 in the superconductive phase, we detect the 8a0-periodic ΔP(r) modulations signifying a PDW coexisting with superconductivity. Then, by visualizing the temperature dependence of this electronic structure from the superconducting into the pseudogap phase, we find the evolution of the scattering interference signature Λ(q) that is predicted specifically for the temperature dependence of an 8a0-periodic PDW. These observations are consistent with theory for the transition from a PDW state coexisting with d-wave superconductivity to a pure PDW state in the Bi2Sr2CaDyCu2O8 pseudogap phase. |
| first_indexed | 2024-03-07T04:26:18Z |
| format | Journal article |
| id | oxford-uuid:ccbf4014-d688-41e3-b639-e2a453e9010e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:26:18Z |
| publishDate | 2021 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:ccbf4014-d688-41e3-b639-e2a453e9010e2022-03-27T07:24:03ZScattering interference signature of a pair density wave state in the cuprate pseudogap phaseJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ccbf4014-d688-41e3-b639-e2a453e9010eEnglishSymplectic ElementsSpringer Nature2021Wang, SChoubey, PChong, YXChen, WRen, WEisaki, HUchida, SHirschfeld, PJDavis, JCSAn unidentified quantum fluid designated the pseudogap (PG) phase is produced by electron-density depletion in the CuO2 antiferromagnetic insulator. Current theories suggest that the PG phase may be a pair density wave (PDW) state characterized by a spatially modulating density of electron pairs. Such a state should exhibit a periodically modulating energy gap ΔP(r) in real-space, and a characteristic quasiparticle scattering interference (QPI) signature ΛP(q) in wavevector space. By studying strongly underdoped Bi2Sr2CaDyCu2O8 at hole-density ~0.08 in the superconductive phase, we detect the 8a0-periodic ΔP(r) modulations signifying a PDW coexisting with superconductivity. Then, by visualizing the temperature dependence of this electronic structure from the superconducting into the pseudogap phase, we find the evolution of the scattering interference signature Λ(q) that is predicted specifically for the temperature dependence of an 8a0-periodic PDW. These observations are consistent with theory for the transition from a PDW state coexisting with d-wave superconductivity to a pure PDW state in the Bi2Sr2CaDyCu2O8 pseudogap phase. |
| spellingShingle | Wang, S Choubey, P Chong, YX Chen, W Ren, W Eisaki, H Uchida, S Hirschfeld, PJ Davis, JCS Scattering interference signature of a pair density wave state in the cuprate pseudogap phase |
| title | Scattering interference signature of a pair density wave state in the cuprate pseudogap phase |
| title_full | Scattering interference signature of a pair density wave state in the cuprate pseudogap phase |
| title_fullStr | Scattering interference signature of a pair density wave state in the cuprate pseudogap phase |
| title_full_unstemmed | Scattering interference signature of a pair density wave state in the cuprate pseudogap phase |
| title_short | Scattering interference signature of a pair density wave state in the cuprate pseudogap phase |
| title_sort | scattering interference signature of a pair density wave state in the cuprate pseudogap phase |
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