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Title: Superconducting Dome in Nd1-xSrxNiO2 Infinite Layer Films

Abstract

We show the phase diagram of Nd1-xSrxNiO2 infinite layer thin films grown on SrTiO3. A superconducting dome spanning 0.125 < x < 0.25 is found, remarkably similar to cuprates, albeit over a narrower doping window. However, while cuprate superconductivity is bounded by an insulator for underdoping and a metal for overdoping, here we observe weakly insulating behavior on either side of the dome. Furthermore, the normal state Hall coefficient is always small and proximate to a continuous zero crossing in doping and in temperature, in contrast to the ~ 1/x dependence observed for cuprates. This suggests the presence of both electronlike and holelike bands, consistent with band structure calculations.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
  2. Cornell Univ., Ithaca, NY (United States); Kavli Inst. at Cornell for Nanoscale Science, Ithaca, NY (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1646809
Grant/Contract Number:  
AC02-76SF00515; GBMF4415; FA 9550-16-1-0305; DMR-1539918; MRI-1429155; DMR-1719875
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 125; Journal Issue: 2
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Electrical conductivity; Hall effect; Phase diagrams; Superconductivity; Superconductors

Citation Formats

Li, Danfeng, Wang, Bai Yang, Lee, Kyuho, Harvey, Shannon P., Osada, Motoki, Goodge, Berit H., Kourkoutis, Lena F., and Hwang, Harold Y.. Superconducting Dome in Nd1-xSrxNiO2 Infinite Layer Films. United States: N. p., 2020. Web. doi:10.1103/physrevlett.125.027001.
Li, Danfeng, Wang, Bai Yang, Lee, Kyuho, Harvey, Shannon P., Osada, Motoki, Goodge, Berit H., Kourkoutis, Lena F., & Hwang, Harold Y.. Superconducting Dome in Nd1-xSrxNiO2 Infinite Layer Films. United States. https://doi.org/10.1103/physrevlett.125.027001
Li, Danfeng, Wang, Bai Yang, Lee, Kyuho, Harvey, Shannon P., Osada, Motoki, Goodge, Berit H., Kourkoutis, Lena F., and Hwang, Harold Y.. Tue . "Superconducting Dome in Nd1-xSrxNiO2 Infinite Layer Films". United States. https://doi.org/10.1103/physrevlett.125.027001. https://www.osti.gov/servlets/purl/1646809.
@article{osti_1646809,
title = {Superconducting Dome in Nd1-xSrxNiO2 Infinite Layer Films},
author = {Li, Danfeng and Wang, Bai Yang and Lee, Kyuho and Harvey, Shannon P. and Osada, Motoki and Goodge, Berit H. and Kourkoutis, Lena F. and Hwang, Harold Y.},
abstractNote = {We show the phase diagram of Nd1-xSrxNiO2 infinite layer thin films grown on SrTiO3. A superconducting dome spanning 0.125 < x < 0.25 is found, remarkably similar to cuprates, albeit over a narrower doping window. However, while cuprate superconductivity is bounded by an insulator for underdoping and a metal for overdoping, here we observe weakly insulating behavior on either side of the dome. Furthermore, the normal state Hall coefficient is always small and proximate to a continuous zero crossing in doping and in temperature, in contrast to the ~ 1/x dependence observed for cuprates. This suggests the presence of both electronlike and holelike bands, consistent with band structure calculations.},
doi = {10.1103/physrevlett.125.027001},
journal = {Physical Review Letters},
number = 2,
volume = 125,
place = {United States},
year = {2020},
month = {7}
}

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