Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.125.147003
Title: Phase Diagram and Superconducting Dome of Infinite-Layer Nd1-xSrxNiO2 Thin Films
Authors: Shengwei Zeng 
Chi Sin Tang 
Xinmao Yin 
Changjian Li 
Mengsha Li 
Zhen Huang 
Junxiong Hu
Wei Liu
Ganesh Ji Omar 
Hariom Jani 
Zhi Shiuh Lim
Kun Han
Dongyang Wan
Ping Yang
Stephen John Pennycook
Andrew T. S. Wee
Ariando Ariando
Keywords: Electronic structure
Fermi surface
Hall effect
Impurities in superconductors
Phase diagrams
Superconducting phase transition
Issue Date: 2-Oct-2020
Publisher: American Physical Society
Citation: Shengwei Zeng, Chi Sin Tang, Xinmao Yin, Changjian Li, Mengsha Li, Zhen Huang, Junxiong Hu, Wei Liu, Ganesh Ji Omar, Hariom Jani, Zhi Shiuh Lim, Kun Han, Dongyang Wan, Ping Yang, Stephen John Pennycook, Andrew T. S. Wee, Ariando Ariando (2020-10-02). Phase Diagram and Superconducting Dome of Infinite-Layer Nd1-xSrxNiO2 Thin Films. Physical Review Letters 125 (14). ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.125.147003
Abstract: Infinite-layer Nd1-xSrxNiO2 thin films with Sr doping level x from 0.08 to 0.3 are synthesized and investigated. We find a superconducting dome x between 0.12 and 0.235 accompanied by a weakly insulating behavior in both under- and overdoped regimes. The dome is akin to that in the electron-doped 214-type and infinite-layer cuprate superconductors. For x?0.18, the normal state Hall coefficient (RH) changes the sign from negative to positive as the temperature decreases. The temperature of the sign changes decreases monotonically with decreasing x from the overdoped side and approaches the superconducting dome at the midpoint, suggesting a reconstruction of the Fermi surface with the dopant concentration across the dome.
Source Title: Physical Review Letters
URI: https://scholarbank.nus.edu.sg/handle/10635/189006
ISSN: 10797114
DOI: 10.1103/PhysRevLett.125.147003
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