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Title: Continuous doping of a cuprate surface: Insights from in situ angle-resolved photoemission [Continuous doping of a cuprate surface: Insights from in situ ARPES]

Abstract

Here, we report a technique of a continuously doped surface of Bi2Sr2CaCu2O8+x through ozone/vacuum annealing and a systematic measurement over the nearly whole superconducting dome on the same sample surface by in situ angle-resolved photoemission spectroscopy. We find that the quasiparticle weight on the antinode is proportional to the doped carrier concentration x within the entire superconducting dome, while the nodal quasiparticle weight changes more mildly. More significantly, we discover that a d-wave pairing energy gap extracted from the nodal region scales well with the onset temperature of the Nernst signal. These findings suggest that the emergence of superconducting pairing is concomitant with the onset of free vortices.

Authors:
 [1];  [1];  [2];  [1];  [1];  [1];  [1];  [3];  [4]; ORCiD logo [5];  [6];  [7];  [8]
  1. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Univ. of Colorado and National Institute of Standards and Technology (NIST), Boulder, CO (United States)
  3. Tsinghua Univ., Bejing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
  4. Boston College, Chestnut Hill, MA (United States)
  5. Brookhaven National Lab. (BNL), Upton, NY (United States)
  6. Chinese Academy of Sciences (CAS), Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
  7. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Songshan Lake Materials Lab., Guangdong (China)
  8. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1482093
Alternate Identifier(s):
OSTI ID: 1478681
Report Number(s):
BNL-209444-2018-JAAM
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
SC0012704; FG02-99ER45747
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 98; Journal Issue: 14; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhong, Y. -G., Guan, J. -Y., Shi, X., Zhao, J., Rao, Z. -C., Tang, C. -Y., Liu, H. -J., Weng, Z. Y., Wang, Z. Q., Gu, G. D., Qian, T., Sun, Y. -J., and Ding, H. Continuous doping of a cuprate surface: Insights from in situ angle-resolved photoemission [Continuous doping of a cuprate surface: Insights from in situ ARPES]. United States: N. p., 2018. Web. doi:10.1103/PhysRevB.98.140507.
Zhong, Y. -G., Guan, J. -Y., Shi, X., Zhao, J., Rao, Z. -C., Tang, C. -Y., Liu, H. -J., Weng, Z. Y., Wang, Z. Q., Gu, G. D., Qian, T., Sun, Y. -J., & Ding, H. Continuous doping of a cuprate surface: Insights from in situ angle-resolved photoemission [Continuous doping of a cuprate surface: Insights from in situ ARPES]. United States. https://doi.org/10.1103/PhysRevB.98.140507
Zhong, Y. -G., Guan, J. -Y., Shi, X., Zhao, J., Rao, Z. -C., Tang, C. -Y., Liu, H. -J., Weng, Z. Y., Wang, Z. Q., Gu, G. D., Qian, T., Sun, Y. -J., and Ding, H. Wed . "Continuous doping of a cuprate surface: Insights from in situ angle-resolved photoemission [Continuous doping of a cuprate surface: Insights from in situ ARPES]". United States. https://doi.org/10.1103/PhysRevB.98.140507. https://www.osti.gov/servlets/purl/1482093.
@article{osti_1482093,
title = {Continuous doping of a cuprate surface: Insights from in situ angle-resolved photoemission [Continuous doping of a cuprate surface: Insights from in situ ARPES]},
author = {Zhong, Y. -G. and Guan, J. -Y. and Shi, X. and Zhao, J. and Rao, Z. -C. and Tang, C. -Y. and Liu, H. -J. and Weng, Z. Y. and Wang, Z. Q. and Gu, G. D. and Qian, T. and Sun, Y. -J. and Ding, H.},
abstractNote = {Here, we report a technique of a continuously doped surface of Bi2Sr2CaCu2O8+x through ozone/vacuum annealing and a systematic measurement over the nearly whole superconducting dome on the same sample surface by in situ angle-resolved photoemission spectroscopy. We find that the quasiparticle weight on the antinode is proportional to the doped carrier concentration x within the entire superconducting dome, while the nodal quasiparticle weight changes more mildly. More significantly, we discover that a d-wave pairing energy gap extracted from the nodal region scales well with the onset temperature of the Nernst signal. These findings suggest that the emergence of superconducting pairing is concomitant with the onset of free vortices.},
doi = {10.1103/PhysRevB.98.140507},
journal = {Physical Review B},
number = 14,
volume = 98,
place = {United States},
year = {Wed Oct 24 00:00:00 EDT 2018},
month = {Wed Oct 24 00:00:00 EDT 2018}
}

Journal Article:

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Cited by: 12 works
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Figures / Tables:

Figure 1 Figure 1: Example of tuning surface doping through PDS method. a. Crystal structure of Bi2212, and the schematic of ozone annealing (red arrows) and vacuum annealing (blue arrows) surface treatments. b. The schematic FS of Bi2212 after ozone (red) and vacuum annealing (blue). c. The FS of the OD onemore » with considerations of super-lattice FS (red dash line) and shadow FS (gray dash line). The bold black and red lines are the fitting results corresponding to the antibonding and bonding FS, respectively. Those FSs are acquired at 30K with integrating ± 10meV around EF. d. The FS evolution with surface treat sequences: after an ozone annealing (panel 1), a serials of vacuum annealing step by step (panels 2-7). e. Image plot of the integrated intensity in the vicinity of EF along the $Γ$-Y direction for each panel in d, showing two main bands (MB, MB’), two 1st super-lattice bands (SB1, SB1’), and two 2nd super-lattice bands (SB2, SB2’). f. The extracted doping level of each sequence. g. The phase diagram of Bi2212: the red line is 𝑇c calculated with an empirical formula, the blue line is 𝑇 extracted from the antinodal gap closed temperature, the gray bars are the doping level for each sequence obtained in f, and the insert picture is the one taken on the cleaved surface of this sample.« less

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Works referencing / citing this record:

Anomalous doping evolution of nodal dispersion revealed by in situ ARPES on continuously doped cuprates
journal, November 2019