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Title: Novel spin-orbit coupling driven emergent states in iridate-based heterostructures

Abstract

Recent years have seen many examples of how the strong spin-orbit coupling present in iridates can stabilize new emergent states that are difficult or impossible to realize in more conventional materials. In this review we outline a representative set of studies detailing how heterostructures based on Ruddlesden-Popper (RP) iridates can be used to access yet more novel physics. Beginning with a short synopsis of iridate thin film growth, the effects of the heterostructure morphology on the RP iridates including Sr 2IrO 4 and SrIrO 3 are discussed. Example studies explore the effects of epitaxial strain, laser-excitation to access transient states, topological semimetallicity in SrIrO 3, 2D magnetism in artificial RP iridates, and interfacial magnetic coupling between iridate and neighboring layers. Taken together, these works show the fantastic potential for controlled engineering of novel quantum phenomena in iridate heterostructures.

Authors:
 [1];  [2]; ORCiD logo [2];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1543408
Report Number(s):
BNL-211892-2019-JAAM
Journal ID: ISSN 0022-3697
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physics and Chemistry of Solids
Additional Journal Information:
Journal Volume: 128; Journal Issue: C; Journal ID: ISSN 0022-3697
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Hao, Lin, Meyers, D., Dean, M. P. M., and Liu, Jian. Novel spin-orbit coupling driven emergent states in iridate-based heterostructures. United States: N. p., 2017. Web. doi:10.1016/j.jpcs.2017.11.018.
Hao, Lin, Meyers, D., Dean, M. P. M., & Liu, Jian. Novel spin-orbit coupling driven emergent states in iridate-based heterostructures. United States. doi:10.1016/j.jpcs.2017.11.018.
Hao, Lin, Meyers, D., Dean, M. P. M., and Liu, Jian. Fri . "Novel spin-orbit coupling driven emergent states in iridate-based heterostructures". United States. doi:10.1016/j.jpcs.2017.11.018. https://www.osti.gov/servlets/purl/1543408.
@article{osti_1543408,
title = {Novel spin-orbit coupling driven emergent states in iridate-based heterostructures},
author = {Hao, Lin and Meyers, D. and Dean, M. P. M. and Liu, Jian},
abstractNote = {Recent years have seen many examples of how the strong spin-orbit coupling present in iridates can stabilize new emergent states that are difficult or impossible to realize in more conventional materials. In this review we outline a representative set of studies detailing how heterostructures based on Ruddlesden-Popper (RP) iridates can be used to access yet more novel physics. Beginning with a short synopsis of iridate thin film growth, the effects of the heterostructure morphology on the RP iridates including Sr2IrO4 and SrIrO3 are discussed. Example studies explore the effects of epitaxial strain, laser-excitation to access transient states, topological semimetallicity in SrIrO3, 2D magnetism in artificial RP iridates, and interfacial magnetic coupling between iridate and neighboring layers. Taken together, these works show the fantastic potential for controlled engineering of novel quantum phenomena in iridate heterostructures.},
doi = {10.1016/j.jpcs.2017.11.018},
journal = {Journal of Physics and Chemistry of Solids},
number = C,
volume = 128,
place = {United States},
year = {2017},
month = {11}
}

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Figures / Tables:

Figure 1 Figure 1: (a) Cooperative effects of both crystal field splitting and SOC on Ir4+ (5d5) ion in $O$h symmetry oxygen octahedra. (b) The final, singly occupied $J$eff = 1/2 state is then split by electron-electron interactions to form an insulating state [15]. (c) $J$eff = 1/2 orbital density profile formore » isospin up state [13].« less

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Works referencing / citing this record:

Ultrafast dynamics of spin and orbital correlations in quantum materials: an energy- and momentum-resolved perspective
journal, April 2019

  • Cao, Y.; Mazzone, D. G.; Meyers, D.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2145
  • DOI: 10.1098/rsta.2017.0480