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Title: Continuously Doping BiM2Sr2CaCu2O8+δ into Electron-Doped Superconductor by CaH2 Annealing Method

Abstract

As a typical hole-doped cuprate superconductor, Bi2Sr2CaCu2O8+δ(Bi2212) carrier doping is mostly determined by its oxygen content. Traditional doping methods can regulate its doping level within the range of hole doping. Here we report the first application of CaH2 annealing method in regulating the doping level of Bi2212. By continuously controlling the anneal time, a series of differently doped samples can be obtained. The combined experimental results of x-ray diffraction, scanning transmission electron microscopy, resistance and Hall measurements demonstrate that the CaH2 induced topochemical reaction can effectively change the oxygen content of Bi2212 within a very wide range, even switching from hole doping to electron doping. Further, we also found evidence of a low-Tc superconducting phase in the electron doping side.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [3];  [1];  [3];  [3];  [3];  [3];  [3];  [4];  [3];  [3]; ORCiD logo [5];  [6]
  1. Chinese Academy of Sciences (CAS), Beijing (China); University of Chinese Academy of Sciences, Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China); University of Chinese Academy of Sciences, Beijing (China); Univ. of Tokyo (Japan)
  3. Chinese Academy of Sciences (CAS), Beijing (China)
  4. Chinese Academy of Sciences (CAS), Beijing (China); Songshan Lake Materials Laboratory, Guangdong (China)
  5. Brookhaven National Lab. (BNL), Upton, NY (United States)
  6. Chinese Academy of Sciences (CAS), Beijing (China); University of Chinese Academy of Sciences, Beijing (China); Songshan Lake Materials Laboratory, Guangdong (China)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); Chinese Academy of Sciences (CAS); K. C. Wong Education Foundation; China Postdoctoral Science Foundation
OSTI Identifier:
1893760
Report Number(s):
BNL-223585-2022-JAAM
Journal ID: ISSN 0256-307X; TRN: US2310228
Grant/Contract Number:  
SC0012704; SC0010526; 11888101; U1832202; QYZDB-SSW-SLH043; XDB33000000; GJTD-2018-01; CAS-WX2021SF-0102; 2020M680726; YJ20200325
Resource Type:
Accepted Manuscript
Journal Name:
Chinese Physics Letters
Additional Journal Information:
Journal Volume: 39; Journal Issue: 7; Journal ID: ISSN 0256-307X
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhao, Jin, Gan, Yu-Lin, Yang, Guang, Zhong, Yi-Gui, Tang, Cen-Yao, Yang, Fa-Zhi, Phan, Giao Ngoc, Sui, Qiang-Tao, Liu, Zhong, Li, Gang, Qiu, Xiang-Gang, Zhang, Qing-Hua, Shen, Jie, Qian, Tian, Lu, Li, Yan, Lei, Gu, Gen-Da, and Ding, Hong. Continuously Doping BiM2Sr2CaCu2O8+δ into Electron-Doped Superconductor by CaH2 Annealing Method. United States: N. p., 2022. Web. doi:10.1088/0256-307x/39/7/077403.
Zhao, Jin, Gan, Yu-Lin, Yang, Guang, Zhong, Yi-Gui, Tang, Cen-Yao, Yang, Fa-Zhi, Phan, Giao Ngoc, Sui, Qiang-Tao, Liu, Zhong, Li, Gang, Qiu, Xiang-Gang, Zhang, Qing-Hua, Shen, Jie, Qian, Tian, Lu, Li, Yan, Lei, Gu, Gen-Da, & Ding, Hong. Continuously Doping BiM2Sr2CaCu2O8+δ into Electron-Doped Superconductor by CaH2 Annealing Method. United States. https://doi.org/10.1088/0256-307x/39/7/077403
Zhao, Jin, Gan, Yu-Lin, Yang, Guang, Zhong, Yi-Gui, Tang, Cen-Yao, Yang, Fa-Zhi, Phan, Giao Ngoc, Sui, Qiang-Tao, Liu, Zhong, Li, Gang, Qiu, Xiang-Gang, Zhang, Qing-Hua, Shen, Jie, Qian, Tian, Lu, Li, Yan, Lei, Gu, Gen-Da, and Ding, Hong. Fri . "Continuously Doping BiM2Sr2CaCu2O8+δ into Electron-Doped Superconductor by CaH2 Annealing Method". United States. https://doi.org/10.1088/0256-307x/39/7/077403. https://www.osti.gov/servlets/purl/1893760.
@article{osti_1893760,
title = {Continuously Doping BiM2Sr2CaCu2O8+δ into Electron-Doped Superconductor by CaH2 Annealing Method},
author = {Zhao, Jin and Gan, Yu-Lin and Yang, Guang and Zhong, Yi-Gui and Tang, Cen-Yao and Yang, Fa-Zhi and Phan, Giao Ngoc and Sui, Qiang-Tao and Liu, Zhong and Li, Gang and Qiu, Xiang-Gang and Zhang, Qing-Hua and Shen, Jie and Qian, Tian and Lu, Li and Yan, Lei and Gu, Gen-Da and Ding, Hong},
abstractNote = {As a typical hole-doped cuprate superconductor, Bi2Sr2CaCu2O8+δ(Bi2212) carrier doping is mostly determined by its oxygen content. Traditional doping methods can regulate its doping level within the range of hole doping. Here we report the first application of CaH2 annealing method in regulating the doping level of Bi2212. By continuously controlling the anneal time, a series of differently doped samples can be obtained. The combined experimental results of x-ray diffraction, scanning transmission electron microscopy, resistance and Hall measurements demonstrate that the CaH2 induced topochemical reaction can effectively change the oxygen content of Bi2212 within a very wide range, even switching from hole doping to electron doping. Further, we also found evidence of a low-Tc superconducting phase in the electron doping side.},
doi = {10.1088/0256-307x/39/7/077403},
journal = {Chinese Physics Letters},
number = 7,
volume = 39,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 2022},
month = {Fri Jul 01 00:00:00 EDT 2022}
}

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