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Title: Superconductivity in an infinite-layer nickelate

Abstract

The discovery of unconventional superconductivity in (La,Ba) 2CuO 4 has motivated the study of compounds with similar crystal and electronic structure, with the aim of finding additional superconductors and understanding the origins of copper oxide superconductivity. Isostructural examples include bulk superconducting Sr 2RuO 4 and surface-electron-doped Sr 2IrO 4, which exhibits spectroscopic signatures consistent with a superconducting gap, although a zero-resistance state has not yet been observed. This method has additionally led to the theoretical investigation of nickelates, as well as thin-film heterostructures designed to host superconductivity. One such structure is the LaAlO 3/LaNiO 3 superlattice, which has been recently proposed for the creation of an artificially layered nickelate heterostructure with a singly occupied d$$_{x^{2}−y^{2}}$$ band. The absence of superconductivity observed in previous related experiments has been attributed, at least in part, to incomplete polarization of the e g orbitals. In this work we report the observation of superconductivity in an infinite-layer nickelate that is isostructural to infinite-layer copper oxides. Using soft-chemistry topotactic reduction, NdNiO 2 and Nd 0.8Sr 0.2NiO 2 single-crystal thin films are synthesized by reducing the perovskite precursor phase. Whereas NdNiO 2 exhibits a resistive upturn at low temperature, measurements of the resistivity, critical current density and magnetic-field response of Nd 0.8Sr 0.2NiO 2 indicate a superconducting transition temperature of about 9 to 15 kelvin. Because this compound is a member of a series of reduced layered nickelate crystal structures, these results suggest the possibility of a family of nickelate superconductors analogous to copper oxides and pnictides.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (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) (SC-22). Materials Sciences & Engineering Division; Swiss National Science Foundation (SNSF)
OSTI Identifier:
1562463
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Nature (London)
Additional Journal Information:
Journal Name: Nature (London); Journal Volume: 572; Journal Issue: 7771; Journal ID: ISSN 0028-0836
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English

Citation Formats

Li, Danfeng, Lee, Kyuho, Wang, Bai Yang, Osada, Motoki, Crossley, Samuel, Lee, Hye Ryoung, Cui, Yi, Hikita, Yasuyuki, and Hwang, Harold Y. Superconductivity in an infinite-layer nickelate. United States: N. p., 2019. Web. doi:10.1038/s41586-019-1496-5.
Li, Danfeng, Lee, Kyuho, Wang, Bai Yang, Osada, Motoki, Crossley, Samuel, Lee, Hye Ryoung, Cui, Yi, Hikita, Yasuyuki, & Hwang, Harold Y. Superconductivity in an infinite-layer nickelate. United States. doi:10.1038/s41586-019-1496-5.
Li, Danfeng, Lee, Kyuho, Wang, Bai Yang, Osada, Motoki, Crossley, Samuel, Lee, Hye Ryoung, Cui, Yi, Hikita, Yasuyuki, and Hwang, Harold Y. Wed . "Superconductivity in an infinite-layer nickelate". United States. doi:10.1038/s41586-019-1496-5.
@article{osti_1562463,
title = {Superconductivity in an infinite-layer nickelate},
author = {Li, Danfeng and Lee, Kyuho and Wang, Bai Yang and Osada, Motoki and Crossley, Samuel and Lee, Hye Ryoung and Cui, Yi and Hikita, Yasuyuki and Hwang, Harold Y.},
abstractNote = {The discovery of unconventional superconductivity in (La,Ba)2CuO4 has motivated the study of compounds with similar crystal and electronic structure, with the aim of finding additional superconductors and understanding the origins of copper oxide superconductivity. Isostructural examples include bulk superconducting Sr2RuO4 and surface-electron-doped Sr2IrO4, which exhibits spectroscopic signatures consistent with a superconducting gap, although a zero-resistance state has not yet been observed. This method has additionally led to the theoretical investigation of nickelates, as well as thin-film heterostructures designed to host superconductivity. One such structure is the LaAlO3/LaNiO3 superlattice, which has been recently proposed for the creation of an artificially layered nickelate heterostructure with a singly occupied d$_{x^{2}−y^{2}}$ band. The absence of superconductivity observed in previous related experiments has been attributed, at least in part, to incomplete polarization of the eg orbitals. In this work we report the observation of superconductivity in an infinite-layer nickelate that is isostructural to infinite-layer copper oxides. Using soft-chemistry topotactic reduction, NdNiO2 and Nd0.8Sr0.2NiO2 single-crystal thin films are synthesized by reducing the perovskite precursor phase. Whereas NdNiO2 exhibits a resistive upturn at low temperature, measurements of the resistivity, critical current density and magnetic-field response of Nd0.8Sr0.2NiO2 indicate a superconducting transition temperature of about 9 to 15 kelvin. Because this compound is a member of a series of reduced layered nickelate crystal structures, these results suggest the possibility of a family of nickelate superconductors analogous to copper oxides and pnictides.},
doi = {10.1038/s41586-019-1496-5},
journal = {Nature (London)},
number = 7771,
volume = 572,
place = {United States},
year = {2019},
month = {8}
}

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Works referenced in this record:

Electronic structure of possible nickelate analogs to the cuprates
journal, March 1999


Reversible changes of epitaxial thin films from perovskite LaNiO3 to infinite-layer structure LaNiO2
journal, February 2009

  • Kawai, Masanori; Inoue, Satoru; Mizumaki, Masaichiro
  • Applied Physics Letters, Vol. 94, Issue 8
  • DOI: 10.1063/1.3078276

Synthesis of infinite-layer LaNiO2 films by metal organic decomposition
journal, October 2009


Turning a Nickelate Fermi Surface into a Cupratelike One through Heterostructuring
journal, June 2009


Reduced forms of LaNiO 3 perovskite. Part 1.—Evidence for new phases: La 2 Ni 2 O 5 and LaNiO 2
journal, January 1983

  • Crespin, Michel; Levitz, Pierre; Gatineau, Lucien
  • J. Chem. Soc., Faraday Trans. 2, Vol. 79, Issue 8
  • DOI: 10.1039/F29837901181

Possible highT c superconductivity in the Ba?La?Cu?O system
journal, June 1986

  • Bednorz, J. G.; M�ller, K. A.
  • Zeitschrift f�r Physik B Condensed Matter, Vol. 64, Issue 2
  • DOI: 10.1007/BF01303701

Orbital Engineering in Symmetry-Breaking Polar Heterostructures
journal, January 2015


Orbital Order and Possible Superconductivity in LaNiO 3 / LaMO 3 Superlattices
journal, January 2008


From quantum matter to high-temperature superconductivity in copper oxides
journal, February 2015

  • Keimer, B.; Kivelson, S. A.; Norman, M. R.
  • Nature, Vol. 518, Issue 7538
  • DOI: 10.1038/nature14165

Electron-hole doping of the metal-insulator transition compound RENiO3
journal, February 1994


Influence of carrier injection on the metal-insulator transition in electron- and hole-doped R 1 x A x NiO 3 perovskites
journal, November 1995

  • García-Muñoz, J. L.; Suaaidi, M.; Martínez-Lope, M. J.
  • Physical Review B, Vol. 52, Issue 18
  • DOI: 10.1103/PhysRevB.52.13563

Large orbital polarization in a metallic square-planar nickelate
journal, June 2017

  • Zhang, Junjie; Botana, A. S.; Freeland, J. W.
  • Nature Physics, Vol. 13, Issue 9
  • DOI: 10.1038/nphys4149

Sodium Hydride as a Powerful Reducing Agent for Topotactic Oxide Deintercalation:  Synthesis and Characterization of the Nickel(I) Oxide LaNiO 2
journal, September 1999

  • Hayward, M. A.; Green, M. A.; Rosseinsky, M. J.
  • Journal of the American Chemical Society, Vol. 121, Issue 38
  • DOI: 10.1021/ja991573i

High-precision measurement of magnetic penetration depth in superconducting films
journal, November 2016

  • He, X.; Gozar, A.; Sundling, R.
  • Review of Scientific Instruments, Vol. 87, Issue 11
  • DOI: 10.1063/1.4967004

Iron-based superconductors: Current status of materials and pairing mechanism
journal, July 2015


Infinite-layer La Ni O 2 :  Ni 1 + is not Cu 2 +
journal, October 2004


Orientation Change of an Infinite-Layer Structure LaNiO 2 Epitaxial Thin Film by Annealing with CaH 2
journal, May 2010

  • Kawai, Masanori; Matsumoto, Kazuya; Ichikawa, Noriya
  • Crystal Growth & Design, Vol. 10, Issue 5
  • DOI: 10.1021/cg100178y

Systematic study of insulator-metal transitions in perovskites RNiO3 (R=Pr,Nd,Sm,Eu) due to closing of charge-transfer gap
journal, April 1992


Superconductivity in a layered perovskite without copper
journal, December 1994

  • Maeno, Y.; Hashimoto, H.; Yoshida, K.
  • Nature, Vol. 372, Issue 6506
  • DOI: 10.1038/372532a0

Dynamical Mean-Field Theory of Nickelate Superlattices
journal, November 2011


Passage from T-type to T′-type arrangement by reducing R4Ni3O10 to R4Ni3O8 (R = La, Pr, Nd)
journal, April 1992


Electron-doped superconductivity at 40 K in the infinite-layer compound Sr1–yNdyCu02
journal, June 1991

  • Smith, M. G.; Manthiram, A.; Zhou, J.
  • Nature, Vol. 351, Issue 6327
  • DOI: 10.1038/351549a0

Why some interfaces cannot be sharp
journal, January 2006

  • Nakagawa, Naoyuki; Hwang, Harold Y.; Muller, David A.
  • Nature Materials, Vol. 5, Issue 3, p. 204-209
  • DOI: 10.1038/nmat1569

Synthesis of the infinite layer Ni(I) phase NdNiO2+x by low temperature reduction of NdNiO3 with sodium hydride
journal, June 2003


Penetration depth of electron-doped infinite-layer Sr 0.88 La 0.12 CuO 2 + x thin films
journal, October 2010


Effective Hamiltonian for the superconducting Cu oxides
journal, March 1988


Observation of a d-wave gap in electron-doped Sr2IrO4
journal, October 2015

  • Kim, Y. K.; Sung, N. H.; Denlinger, J. D.
  • Nature Physics, Vol. 12, Issue 1
  • DOI: 10.1038/nphys3503

The parent structure of the layered high-temperature superconductors
journal, July 1988

  • Siegrist, T.; Zahurak, S. M.; Murphy, D. W.
  • Nature, Vol. 334, Issue 6179
  • DOI: 10.1038/334231a0

Formation of defect-fluorite structured NdNiO x H y epitaxial thin films via a soft chemical route from NdNiO 3 precursors
journal, January 2016

  • Onozuka, T.; Chikamatsu, A.; Katayama, T.
  • Dalton Transactions, Vol. 45, Issue 30
  • DOI: 10.1039/C6DT01737A

Direct observation of infinite NiO 2 planes in LaNiO 2 films
journal, May 2016

  • Ikeda, Ai; Krockenberger, Yoshiharu; Irie, Hiroshi
  • Applied Physics Express, Vol. 9, Issue 6
  • DOI: 10.7567/APEX.9.061101

Superconductivity at 110 K in the infinite-layer compound (Sr1-xCax)1-yCuO2
journal, April 1992

  • Azuma, M.; Hiroi, Z.; Takano, M.
  • Nature, Vol. 356, Issue 6372
  • DOI: 10.1038/356775a0

La 3 Ni 2 O 6 :  A New Double T‘-type Nickelate with Infinite Ni 1+/2+ O 2 Layers
journal, July 2006

  • Poltavets, Viktor V.; Lokshin, Konstantin A.; Dikmen, Sibel
  • Journal of the American Chemical Society, Vol. 128, Issue 28
  • DOI: 10.1021/ja063031o