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Title: Disentangled Cooperative Orderings in Artificial Rare-Earth Nickelates

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [3];  [3];  [4];  [5];  [5];  [5];  [3]
  1. Indian Inst. of Science, Bangalore (India). Dept. of Physics
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Condensed Matter Physics and Materials Science
  3. Rutgers Univ., Piscataway, NJ (United States). Dept. of Physics and Astronomy
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  5. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Coupled transitions between distinct ordered phases are important aspects behind the rich phase complexity of correlated oxides that hinder our understanding of the underlying phenomena. For this reason, fundamental control over complex transitions has become a leading motivation of the designer approach to materials. We have devised a series of new superlattices by combining a Mott insulator and a correlated metal to form ultrashort period superlattices, which allow one to disentangle the simultaneous orderings in RENiO3. Tailoring an incommensurate heterostructure period relative to the bulk charge ordering pattern suppresses the charge order transition while preserving metal-insulator and antiferromagnetic transitions. Such selective decoupling of the entangled phases resolves the long-standing puzzle about the driving force behind the metal-insulator transition and points to the site-selective Mott transition as the operative mechanism. This designer approach emphasizes the potential of heterointerfaces for selective control of simultaneous transitions in complex materials with entwined broken symmetries.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Gordon and Betty Moore Foundation; Indian Institute of Science, India
Grant/Contract Number:
SC0012704; GBMF4534; SC0012375; AC02-05CH11231; AC02-06CH11357
OSTI ID:
1457349
Alternate ID(s):
OSTI ID: 1432422; OSTI ID: 1461268
Report Number(s):
BNL-205798-2018-JAAM; PRLTAO; TRN: US1901362
Journal Information:
Physical Review Letters, Vol. 120, Issue 15; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

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Cited By (6)

Phase engineering of rare earth nickelates by digital synthesis journal August 2018
Disentangling lattice and electronic contributions to the metal–insulator transition from bulk vs. layer confined RNiO 3 journal July 2019
Distortion mode anomalies in bulk PrNiO 3 : Illustrating the potential of symmetry-adapted distortion mode analysis for the study of phase transitions journal November 2019
Confinement- and strain-induced enhancement of thermoelectric properties in LaNiO 3 / LaAlO 3 ( 001 ) superlattices journal May 2018
Epitaxial strain modulated electronic properties of interface controlled nickelate superlattice text January 2018
Conductivity noise across temperature driven transitions of rare-earth nickelate heterostructures text January 2019

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