skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Engineered Mott ground state in a LaTiO3+δ/LaNiO3 heterostructure

Abstract

In pursuit of creating cuprate-like electronic and orbital structures, artificial heterostructures based on LaNiO3 have inspired a wealth of exciting experimental and theoretical results. However, to date there is a very limited experimental understanding of the electronic and orbital states emerging from interfacial charge transfer and their connections to the modified band structure at the interface. Towards this goal, we have synthesized a prototypical superlattice composed of a correlated metal LaNiO3 and a doped Mott insulator LaTiO3+δ, and investigated its electronic structure by resonant X-ray absorption spectroscopy combined with X-ray photoemission spectroscopy, electrical transport and theory calculations. The heterostructure exhibits interfacial charge transfer from Ti to Ni sites, giving rise to an insulating ground state with orbital polarization and eg orbital band splitting. Here, our findings demonstrate how the control over charge at the interface can be effectively used to create exotic electronic, orbital and spin states.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [3];  [3];  [3];  [1]
  1. Univ. of Arkansas, Fayetteville, AR (United States)
  2. Univ. of Arkansas, Fayetteville, AR (United States); Indian Institute of Technology Kharagpur, Kharagpur (India)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1241364
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; physical sciences; condensed matter

Citation Formats

Cao, Yanwei, Liu, Xiaoran, Kareev, M., Choudhury, D., Middey, S., Meyers, D., Kim, J. -W., Ryan, P. J., Freeland, J. W., and Chakhalian, J. Engineered Mott ground state in a LaTiO3+δ/LaNiO3 heterostructure. United States: N. p., 2016. Web. doi:10.1038/ncomms10418.
Cao, Yanwei, Liu, Xiaoran, Kareev, M., Choudhury, D., Middey, S., Meyers, D., Kim, J. -W., Ryan, P. J., Freeland, J. W., & Chakhalian, J. Engineered Mott ground state in a LaTiO3+δ/LaNiO3 heterostructure. United States. doi:10.1038/ncomms10418.
Cao, Yanwei, Liu, Xiaoran, Kareev, M., Choudhury, D., Middey, S., Meyers, D., Kim, J. -W., Ryan, P. J., Freeland, J. W., and Chakhalian, J. Thu . "Engineered Mott ground state in a LaTiO3+δ/LaNiO3 heterostructure". United States. doi:10.1038/ncomms10418. https://www.osti.gov/servlets/purl/1241364.
@article{osti_1241364,
title = {Engineered Mott ground state in a LaTiO3+δ/LaNiO3 heterostructure},
author = {Cao, Yanwei and Liu, Xiaoran and Kareev, M. and Choudhury, D. and Middey, S. and Meyers, D. and Kim, J. -W. and Ryan, P. J. and Freeland, J. W. and Chakhalian, J.},
abstractNote = {In pursuit of creating cuprate-like electronic and orbital structures, artificial heterostructures based on LaNiO3 have inspired a wealth of exciting experimental and theoretical results. However, to date there is a very limited experimental understanding of the electronic and orbital states emerging from interfacial charge transfer and their connections to the modified band structure at the interface. Towards this goal, we have synthesized a prototypical superlattice composed of a correlated metal LaNiO3 and a doped Mott insulator LaTiO3+δ, and investigated its electronic structure by resonant X-ray absorption spectroscopy combined with X-ray photoemission spectroscopy, electrical transport and theory calculations. The heterostructure exhibits interfacial charge transfer from Ti to Ni sites, giving rise to an insulating ground state with orbital polarization and eg orbital band splitting. Here, our findings demonstrate how the control over charge at the interface can be effectively used to create exotic electronic, orbital and spin states.},
doi = {10.1038/ncomms10418},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {2016},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Metal-insulator transitions
journal, October 1998

  • Imada, Masatoshi; Fujimori, Atsushi; Tokura, Yoshinori
  • Reviews of Modern Physics, Vol. 70, Issue 4, p. 1039-1263
  • DOI: 10.1103/RevModPhys.70.1039

Orbital Physics in Transition-Metal Oxides
journal, April 2000


Electrostatic modification of novel materials
journal, November 2006

  • Ahn, C. H.; Bhattacharya, A.; Di Ventra, M.
  • Reviews of Modern Physics, Vol. 78, Issue 4, p. 1185-1212
  • DOI: 10.1103/RevModPhys.78.1185

Emergent phenomena at oxide interfaces
journal, January 2012

  • Hwang, H. Y.; Iwasa, Y.; Kawasaki, M.
  • Nature Materials, Vol. 11, Issue 2
  • DOI: 10.1038/nmat3223

Colloquium : Emergent properties in plane view: Strong correlations at oxide interfaces
journal, October 2014

  • Chakhalian, Jak; Freeland, John W.; Millis, Andrew J.
  • Reviews of Modern Physics, Vol. 86, Issue 4
  • DOI: 10.1103/RevModPhys.86.1189

Whither the oxide interface
journal, January 2012

  • Chakhalian, J.; Millis, A. J.; Rondinelli, J.
  • Nature Materials, Vol. 11, Issue 2
  • DOI: 10.1038/nmat3225

Oxide Interfaces--An Opportunity for Electronics
journal, March 2010


Magnetism at the edge: New phenomena at oxide interfaces
journal, December 2013


Strain Tuning of Ferroelectric Thin Films
journal, August 2007


Two-Dimensional Electron Gases at Complex Oxide Interfaces
journal, July 2014


Magnetic Oxide Heterostructures
journal, July 2014


Interface Physics in Complex Oxide Heterostructures
journal, March 2011


Correlated Oxide Physics and Electronics
journal, July 2014


Orbital Reconstruction and Covalent Bonding at an Oxide Interface
journal, November 2007


Orbital reflectometry of oxide heterostructures
journal, February 2011

  • Benckiser, Eva; Haverkort, Maurits W.; Brück, Sebastian
  • Nature Materials, Vol. 10, Issue 3
  • DOI: 10.1038/nmat2958

Quantum confinement of Mott electrons in ultrathin LaNiO 3 /LaAlO 3 superlattices
journal, April 2011


Asymmetric Orbital-Lattice Interactions in Ultrathin Correlated Oxide Films
journal, September 2011


Orbital control in strained ultra-thin LaNiO 3 /LaAlO 3 superlattices
journal, November 2011


Engineering Correlation Effects via Artificially Designed Oxide Superlattices
journal, September 2013


Modifying the Electronic Orbitals of Nickelate Heterostructures via Structural Distortions
journal, May 2013


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


The fractional quantum Hall effect
journal, March 1999

  • Stormer, Horst L.; Tsui, Daniel C.; Gossard, Arthur C.
  • Reviews of Modern Physics, Vol. 71, Issue 2
  • DOI: 10.1103/RevModPhys.71.S298

Delta doping of III–V compound semiconductors: Fundamentals and device applications
journal, May 1990

  • Schubert, E. F.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 8, Issue 3
  • DOI: 10.1116/1.576617

Band gaps and electronic structure of transition-metal compounds
journal, July 1985


Modulation doping near Mott-insulator heterojunctions
journal, August 2006


Mott p - n junctions in layered materials
journal, January 2013


Interfaces of Correlated Electron Systems: Proposed Mechanism for Colossal Electroresistance
journal, December 2005


Suppression of rectification at metal–Mott insulator interfaces
journal, December 2007


Spin Andreev-like Reflection in Metal-Mott Insulator Heterostructures
journal, February 2015


Interplay between spin, charge and orbital degrees of freedom in magnetic oxides
journal, April 1997


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


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


Charge transfer and interfacial magnetism in (LaNiO 3 ) n /(LaMnO 3 ) 2 superlattices
journal, October 2013


Suppression of Near-Fermi Level Electronic States at the Interface in a LaNiO 3 / SrTiO 3 Superlattice
journal, September 2011


Conductivity enhancement of ultrathin LaNiO3 films in superlattices
journal, November 2010

  • Son, Junwoo; LeBeau, James M.; Allen, S. James
  • Applied Physics Letters, Vol. 97, Issue 20
  • DOI: 10.1063/1.3511738

Onset of metallic behavior in strained ( LaNiO 3 ) n / ( SrMnO 3 ) 2 superlattices
journal, March 2009


Exchange-bias effect at La 0.75 Sr 0.25 MnO 3 /LaNiO 3 interfaces
journal, March 2012


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


Metal-Insulator Transition in Ultrathin LaNiO 3 Films
journal, June 2011


Orbital physics in the perovskite Ti oxides
journal, January 2004


Optical spectra in (La,Y) TiO 3 : Variation of Mott-Hubbard gap features with change of electron correlation and band filling
journal, April 1995


Transition Metal Oxide Work Functions: The Influence of Cation Oxidation State and Oxygen Vacancies
journal, June 2012

  • Greiner, Mark T.; Chai, Lily; Helander, Michael G.
  • Advanced Functional Materials, Vol. 22, Issue 21
  • DOI: 10.1002/adfm.201200615

Electronic Reconstruction at the Isopolar LaTiO 3 / LaFeO 3 Interface: An X-Ray Photoemission and Density-Functional Theory Study
journal, December 2014


Ti and O K edges for titanium oxides by multiple scattering calculations: Comparison to XAS and EELS spectra
journal, April 1997


Effects of Ni vacancies and crystallite size on the O 1s and Ni 2p x-ray absorption spectra of nanocrystalline NiO
journal, November 2013

  • Mossanek, R. J. O.; Domínguez-Cañizares, G.; Gutiérrez, A.
  • Journal of Physics: Condensed Matter, Vol. 25, Issue 49
  • DOI: 10.1088/0953-8984/25/49/495506

Spectroscopic investigation of the hole states in Ni-deficient NiO films
journal, January 2013

  • Cho, Deok-Yong; Song, Seul Ji; Kim, Un Ki
  • Journal of Materials Chemistry C, Vol. 1, Issue 28
  • DOI: 10.1039/c3tc30687a

Oxygen 1 s x-ray-absorption edges of transition-metal oxides
journal, September 1989


Strain-dependent transport properties of the ultra-thin correlated metal, LaNiO 3
journal, July 2011


Atomic-scale control of competing electronic phases in ultrathin LaNiO3
journal, April 2014

  • King, P. D. C.; Wei, H. I.; Nie, Y. F.
  • Nature Nanotechnology, Vol. 9, Issue 6
  • DOI: 10.1038/nnano.2014.59

Strain and composition dependence of orbital polarization in nickel oxide superlattices
journal, September 2013


Neutron-diffraction study of R NiO 3 ( R =La,Pr,Nd,Sm): Electronically induced structural changes across the metal-insulator transition
journal, August 1992

  • García-Muñoz, J. L.; Rodríguez-Carvajal, J.; Lacorre, P.
  • Physical Review B, Vol. 46, Issue 8
  • DOI: 10.1103/PhysRevB.46.4414

Self-consistent aspects of x-ray absorption calculations
journal, August 2009


Metallic conductance at the interface of tri-color titanate superlattices
journal, December 2013

  • Kareev, M.; Cao, Yanwei; Liu, Xiaoran
  • Applied Physics Letters, Vol. 103, Issue 23
  • DOI: 10.1063/1.4841955

Phase evolution for conversion reaction electrodes in lithium-ion batteries
journal, February 2014

  • Lin, Feng; Nordlund, Dennis; Weng, Tsu-Chien
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms4358

Epitaxial growth of (111)-oriented LaAlO3/LaNiO3 ultra-thin superlattices
journal, December 2012

  • Middey, S.; Meyers, D.; Kareev, M.
  • Applied Physics Letters, Vol. 101, Issue 26
  • DOI: 10.1063/1.4773375

    Works referencing / citing this record:

    Pure electronic metal-insulator transition at the interface of complex oxides
    journal, June 2016

    • Meyers, D.; Liu, Jian; Freeland, J. W.
    • Scientific Reports, Vol. 6, Issue 1
    • DOI: 10.1038/srep27934

    Pure electronic metal-insulator transition at the interface of complex oxides
    journal, June 2016

    • Meyers, D.; Liu, Jian; Freeland, J. W.
    • Scientific Reports, Vol. 6, Issue 1
    • DOI: 10.1038/srep27934