@article{36c5a5a8c0bb4959818413d8f820eef1,
title = "Strongly correlated perovskite lithium ion shuttles",
abstract = "Solid-state ion shuttles are of broad interest in electrochemical devices, nonvolatile memory, neuromorphic computing, and bio-mimicry utilizing synthetic membranes. Traditional design approaches are primarily based on substitutional doping of dissimilar valent cations in a solid lattice, which has inherent limits on dopant concentration and thereby ionic conductivity. Here, we demonstrate perovskite nickelates as Li-ion shuttles with simultaneous suppression of electronic transport via Mott transition. Electrochemically lithiated SmNiO3 (Li-SNO) contains a large amount of mobile Li+ located in interstitial sites of the perovskite approaching one dopant ion per unit cell. A significant lattice expansion associated with interstitial doping allows for fast Li+ conduction with reduced activation energy. We further present a generalization of this approach with results on other rare-earth perovskite nickelates as well as dopants such as Na+. The results highlight the potential of quantum materials and emergent physics in design of ion conductors.",
keywords = "Emergent phenomena, Ionic conductivity, Mott transition, Neuromorphic, Perovskite nickelate",
author = "Yifei Sun and Michele Kotiuga and Dawgen Lim and Badri Narayanan and Mathew Cherukara and Zhen Zhang and Yongqi Dong and Ronghui Kou and Sun, {Cheng Jun} and Qiyang Lu and Iradwikanari Waluyo and Adrian Hunt and Hidekazu Tanaka and Hattori, {Azusa N.} and Sampath Gamage and Yohannes Abate and Pol, {Vilas G.} and Hua Zhou and Sankaranarayanan, {Subramanian K.R.S.} and Bilge Yildiz and Rabe, {Karin M.} and Shriram Ramanathan",
note = "Funding Information: Science User Facility operated for the US DOE Office of Science by Argonne National Laboratory, and was supported by the US DOE under Contract DE-AC02-06CH11357, and the Canadian Light Source and its funding partners. Q.L. and B.Y. acknowledge funding support from the Massachusetts Institute of Technology Materials Research Science and Engineering Center (MRSEC) through the MRSEC Program of the National Science Foundation under Award DMR-1419807. This research used resources 23-ID-2 beamline of the National Synchrotron Light Source II, a US DOE Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract DE-SC0012704. H.T. and A.H. acknowledge Japan Society for the Promotion of Science KAKENHI Grant 15KK0236. S.G. acknowledges support provided by National Science Foundation Grant 1553251. The work of Y.A. was supported by the Air Force Office of Scientific Research Grant FA9559-16-1-0172. Funding Information: ACKNOWLEDGMENTS. We acknowledge National Science Foundation Grant 1609898 and Air Force Office of Scientific Research Grant FA9550-16-1-0159 for support. M.K. and K.M.R. acknowledge support from Office of Naval Research Grant N00014-17-1-2770. D.L. and V.G.P. acknowledge support from Office of Naval Research Grant N00014-18-1-2397. This research used resources of the Argonne Leadership Computing Facility, which is a US Department of Energy (DOE) Office of Science User Facility supported under Contract DE-AC02-06CH11357. Use of the Center for Nanoscale Materials, an Office of Science User Facility, was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DE-AC02-06CH11357. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the US DOE under Contract DE-AC02-05CH11231. Z.Z. acknowledges support from Army Research Office Grant W911NF-16-1-0042. This research used resources of the APS, an Office of Funding Information: We acknowledge National Science Foundation Grant 1609898 and Air Force Office of Scientific Research Grant FA9550-16-1-0159 for support. M.K. and K.M.R. acknowledge support from Office of Naval Research Grant N00014-17-1-2770. D.L. and V.G.P. acknowledge support from Office of Naval Research Grant N00014-18-1-2397. This research used resources of the Argonne Leadership Computing Facility, which is a US Department of Energy (DOE) Office of Science User Facility supported under Contract DE-AC02-06CH11357. Use of the Center for Nanoscale Materials, an Office of Science User Facility, was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DE-AC02-06CH11357. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the US DOE under Contract DE-AC02-05CH11231. Z.Z. acknowledges support from Army Research Office Grant W911NF-16-1-0042. This research used resources of the APS, an Office of Science User Facility operated for the US DOE Office of Science by Argonne National Laboratory, and was supported by the US DOE under Contract DE-AC02-06CH11357, and the Canadian Light Source and its funding partners. Q.L. and B.Y. acknowledge funding support from the Massachusetts Institute of Technology Materials Research Science and Engineering Center (MRSEC) through the MRSEC Program of the National Science Foundation under Award DMR-1419807. This research used resources 23-ID-2 beamline of the National Synchrotron Light Source II, a US DOE Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract DE-SC0012704. H.T. and A.H. acknowledge Japan Society for the Promotion of Science KAKENHI Grant 15KK0236. S.G. acknowledges support provided by National Science Foundation Grant 1553251. The work of Y.A. was supported by the Air Force Office of Scientific Research Grant FA9559-16-1-0172. Publisher Copyright: {\textcopyright} 2018 National Academy of Sciences. All rights reserved.",
year = "2018",
month = sep,
day = "25",
doi = "10.1073/pnas.1805029115",
language = "English (US)",
volume = "115",
pages = "9672--9677",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
publisher = "National Academy of Sciences",
number = "39",
}