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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 |
| Appears in Collections: | Staff Publications Elements |
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