• Editors' Suggestion
  • Rapid Communication

Quantum confinement of Mott electrons in ultrathin LaNiO3/LaAlO3 superlattices

Jian Liu, S. Okamoto, M. van Veenendaal, M. Kareev, B. Gray, P. Ryan, J. W. Freeland, and J. Chakhalian
Phys. Rev. B 83, 161102(R) – Published 13 April 2011; Erratum Phys. Rev. B 86, 079904 (2012)

Abstract

We investigate the electronic reconstruction in (LaNiO3)n/(LaAlO3)3 (n=3, 5, and 10) superlattices due to the quantum confinement (QC) by dc transport and resonant soft x-ray absorption spectroscopy. In proximity to the QC limit, a Mott-type transition from an itinerant electron behavior to a localized state is observed. The system exhibits tendency toward charge-order during the transition. Ab initio cluster calculations are in good agreement with the absorption spectra, indicating that the apical ligand hole density is highly suppressed, resulting in a strong modification of the electronic structure. At the dimensional crossover cellular dynamical-mean-field calculations support the emergence of a Mott insulator ground state in the heterostructured ultrathin slab of LaNiO3.

  • Figure
  • Figure
  • Figure
  • Received 26 January 2011

DOI:https://doi.org/10.1103/PhysRevB.83.161102

©2011 American Physical Society

Erratum

Erratum: Quantum confinement of Mott electrons in ultrathin LaNiO3/LaAlO3 superlattices [Phys. Rev. B 83, 161102(R) (2011)]

Jian Liu, S. Okamoto, M. van Veenendaal, M. Kareev, B. Gray, P. Ryan, J. W. Freeland, and J. Chakhalian
Phys. Rev. B 86, 079904 (2012)

Authors & Affiliations

Jian Liu1,2,*, S. Okamoto3, M. van Veenendaal4,5, M. Kareev1, B. Gray1, P. Ryan4, J. W. Freeland4, and J. Chakhalian1

  • 1Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA
  • 2Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 3Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
  • 4Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 5Department of Physics, Northern Illinois University, DeKalb, Illinois 60115, USA

  • *jxl026@uark.edu

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 83, Iss. 16 — 15 April 2011

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×