Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session T57: Superconductivity: Mostly Nickelates
11:30 AM–2:30 PM,
Thursday, March 17, 2022
Room: Hyatt Regency Hotel -Clark
Sponsoring
Unit:
DCMP
Chair: Jason Haraldsen, University of North Florida
Abstract: T57.00014 : Superconductivity in infinite-layer Pr0.8Sr0.2NiO2 films on different substrates*
2:06 PM–2:18 PM
Abstract 
Presenter:
Qiang Gao
(Institute of Physics)
Authors:
Qiang Gao
(Institute of Physics)
Zhihai Zhu
(Massachusetts Institute of Technology MIT)
Xingjiang Zhou
(Chinese Academy of Sciences)
Xiaolin Ren
(Institute of Physics, Chinese Academy of Sciences)
Hailan Luo
(Institute of Physics, Chinese Academy of Sciences)
*The recent discovery of superconductivity in infinite-layer nickelates has motivated tremendous efforts to study these materials that are analogous to cuprates. However, superconductivity in infinite-layer nickelates has been realized only in thin films grown on SrTiO3 substrates, thus raising the question of whether it is interface-induced and the query into the role of SrTiO3 substrate. Here, we report the observation of superconductivity in Pr0.8Sr0.2NiO2 films prepared at almost the same conditions except they are grown on different substrates (LaAlO3)0.3Sr2AlTaO6)0.7(LSAT) and SrTiO3 with the corresponding onset of superconductivity maximized at 15 K and 9K, respectively. Our results not only suggest that the superconductivity in infinite-layer nickelates is unlikely an interface-induced phenomenon and that the SrTiO3 substrate is n
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