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Title: Resonant x-ray scattering reveals possible disappearance of magnetic order under hydrostatic pressure in the Kitaev candidate γ - Li 2 IrO 3

Abstract

Honeycomb iridates such as γ-Li2IrO3 are argued to realize Kitaev spin-anisotropic magnetic exchange, along with Heisenberg and possibly other couplings. While systems with pure Kitaev interactions are candidates to realize a quantum spin-liquid ground state, in γ-Li2IrO3 it has been shown that the presence of competing magnetic interactions leads to an incommensurate spiral spin order at ambient pressure below 38 K. We study the pressure sensitivity of this magnetically ordered state in single crystals of γ-Li2IrO3 using resonant x-ray scattering (RXS) under applied hydrostatic pressures of up to 3 GPa. RXS is a direct probe of electronic order, and we observe the abrupt disappearance of the qsp=(0.57,0,0) spiral order at a critical pressure Pc=1.4 GPa with no accompanying change in the symmetry of the lattice.

Authors:
 [1];  [1];  [2];  [3];  [4];  [5];  [1]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Science Division
  2. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source; Univ. of Illinois, Urbana, IL (United States). Dept. of Geology
  4. Univ. of California, Berkeley, CA (United States). Dept. of Physics
  5. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source
Publication Date:
Research Org.:
Univ. of California, Berkeley, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Gordon and Betty Moore Foundation (United States); National Science Foundation (NSF)
Contributing Org.:
Univ. of Illinois, Urbana, IL (United States)
OSTI Identifier:
1372316
Alternate Identifier(s):
OSTI ID: 1368419; OSTI ID: 1466704
Grant/Contract Number:  
SC0014039; AC02-06CH11357; GBMF4374; EAR-1606856; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 2; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; frustrated magnetism; magnetic phase transitions; magnetic insulators; x-ray resonant magnetic scattering; condensed matter and materials physics

Citation Formats

Breznay, Nicholas P., Ruiz, Alejandro, Frano, Alex, Bi, Wenli, Birgeneau, Robert J., Haskel, Daniel, and Analytis, James G.. Resonant x-ray scattering reveals possible disappearance of magnetic order under hydrostatic pressure in the Kitaev candidate γ-Li2IrO3. United States: N. p., 2017. Web. https://doi.org/10.1103/PhysRevB.96.020402.
Breznay, Nicholas P., Ruiz, Alejandro, Frano, Alex, Bi, Wenli, Birgeneau, Robert J., Haskel, Daniel, & Analytis, James G.. Resonant x-ray scattering reveals possible disappearance of magnetic order under hydrostatic pressure in the Kitaev candidate γ-Li2IrO3. United States. https://doi.org/10.1103/PhysRevB.96.020402
Breznay, Nicholas P., Ruiz, Alejandro, Frano, Alex, Bi, Wenli, Birgeneau, Robert J., Haskel, Daniel, and Analytis, James G.. Wed . "Resonant x-ray scattering reveals possible disappearance of magnetic order under hydrostatic pressure in the Kitaev candidate γ-Li2IrO3". United States. https://doi.org/10.1103/PhysRevB.96.020402. https://www.osti.gov/servlets/purl/1372316.
@article{osti_1372316,
title = {Resonant x-ray scattering reveals possible disappearance of magnetic order under hydrostatic pressure in the Kitaev candidate γ-Li2IrO3},
author = {Breznay, Nicholas P. and Ruiz, Alejandro and Frano, Alex and Bi, Wenli and Birgeneau, Robert J. and Haskel, Daniel and Analytis, James G.},
abstractNote = {Honeycomb iridates such as γ-Li2IrO3 are argued to realize Kitaev spin-anisotropic magnetic exchange, along with Heisenberg and possibly other couplings. While systems with pure Kitaev interactions are candidates to realize a quantum spin-liquid ground state, in γ-Li2IrO3 it has been shown that the presence of competing magnetic interactions leads to an incommensurate spiral spin order at ambient pressure below 38 K. We study the pressure sensitivity of this magnetically ordered state in single crystals of γ-Li2IrO3 using resonant x-ray scattering (RXS) under applied hydrostatic pressures of up to 3 GPa. RXS is a direct probe of electronic order, and we observe the abrupt disappearance of the qsp=(0.57,0,0) spiral order at a critical pressure Pc=1.4 GPa with no accompanying change in the symmetry of the lattice.},
doi = {10.1103/PhysRevB.96.020402},
journal = {Physical Review B},
number = 2,
volume = 96,
place = {United States},
year = {2017},
month = {7}
}

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Cited by: 6 works
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Works referenced in this record:

Zigzag Magnetic Order in the Iridium Oxide Na 2 IrO 3
journal, February 2013


Anyons in an exactly solved model and beyond
journal, January 2006


Monoclinic crystal structure of α RuCl 3 and the zigzag antiferromagnetic ground state
journal, December 2015


Challenges in design of Kitaev materials: Magnetic interactions from competing energy scales
journal, June 2016


Magnetic order in α RuCl 3 : A honeycomb-lattice quantum magnet with strong spin-orbit coupling
journal, April 2015


Spin-orbit coupling in iridium-based 5 d compounds probed by x-ray absorption spectroscopy
journal, November 2012


Correlated Quantum Phenomena in the Strong Spin-Orbit Regime
journal, March 2014


Hyperhoneycomb Iridate β Li 2 IrO 3 as a Platform for Kitaev Magnetism
journal, February 2015


Relevance of the Heisenberg-Kitaev Model for the Honeycomb Lattice Iridates A 2 IrO 3
journal, March 2012


Theory of magnetic phase diagrams in hyperhoneycomb and harmonic-honeycomb iridates
journal, February 2015


Unified theory of spiral magnetism in the harmonic-honeycomb iridates α , β , and γ Li 2 IrO 3
journal, June 2015


The vicinity of hyper-honeycomb β-Li2IrO3 to a three-dimensional Kitaev spin liquid state
journal, July 2016

  • Katukuri, Vamshi M.; Yadav, Ravi; Hozoi, Liviu
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep29585

Noncoplanar and Counterrotating Incommensurate Magnetic Order Stabilized by Kitaev Interactions in γ Li 2 IrO 3
journal, November 2014


Orbital Magnetism and Spin-Orbit Effects in the Electronic Structure of BaIrO 3
journal, November 2010


X-Ray Resonance Exchange Scattering
journal, September 1988


Invited Article: High-pressure techniques for condensed matter physics at low temperature
journal, April 2010

  • Feng, Yejun; Jaramillo, R.; Wang, Jiyang
  • Review of Scientific Instruments, Vol. 81, Issue 4
  • DOI: 10.1063/1.3400212

Pressure induced second-order structural transition in Sr 3 Ir 2 O 7
journal, May 2014


Revealing frustrated local moment model for pressurized hyperhoneycomb iridate: Paving the way toward a quantum spin liquid
journal, December 2016


Kitaev-Heisenberg Model on a Honeycomb Lattice: Possible Exotic Phases in Iridium Oxides A 2 IrO 3
journal, July 2010


Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate
journal, June 2014

  • Modic, K. A.; Smidt, Tess E.; Kimchi, Itamar
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms5203

Equations of State for Cu, Ag, and Au for Wide Ranges in Temperature and Pressure up to 500 GPa and Above
journal, March 2001

  • Holzapfel, W. B.; Hartwig, M.; Sievers, W.
  • Journal of Physical and Chemical Reference Data, Vol. 30, Issue 2
  • DOI: 10.1063/1.1370170

Pressure Tuning of the Spin-Orbit Coupled Ground State in Sr 2 IrO 4
journal, July 2012


Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models
journal, January 2009


Long-range magnetic ordering in Na 2 IrO 3
journal, June 2011


X-Ray Resonance Exchange Scattering
journal, May 1989


The vicinity of hyper-honeycomb β-Li2IrO3 to a three-dimensional Kitaev spin liquid state
null, January 2016

  • Katukuri, Vamshi M.; Yadav, Ravi; Hozoi, Liviu
  • London : Nature Publishing Group
  • DOI: 10.34657/5025

    Works referencing / citing this record:

    Correlated states in β-Li2IrO3 driven by applied magnetic fields
    journal, October 2017


    Models and materials for generalized Kitaev magnetism
    journal, November 2017

    • Winter, Stephen M.; Tsirlin, Alexander A.; Daghofer, Maria
    • Journal of Physics: Condensed Matter, Vol. 29, Issue 49
    • DOI: 10.1088/1361-648x/aa8cf5

    Pressure-induced structural dimerization in the hyperhoneycomb iridate β Li 2 IrO 3 at low temperatures
    journal, August 2019


    Lattice dynamics and structural transition of the hyperhoneycomb iridate β Li 2 IrO 3 investigated by high-pressure Raman scattering
    journal, February 2020


    Temperature evolution of spin dynamics in two- and three-dimensional Kitaev models: Influence of fluctuating Z 2 flux
    journal, August 2017


    Pressure tuning of bond-directional exchange interactions and magnetic frustration in the hyperhoneycomb iridate β Li 2 IrO 3
    journal, October 2017


    Competition between spin-orbit coupling, magnetism, and dimerization in the honeycomb iridates: α Li 2 IrO 3 under pressure
    journal, January 2018


    Magnetic structure and excitation spectrum of the hyperhoneycomb Kitaev magnet β Li 2 IrO 3
    journal, March 2018

    • Ducatman, Samuel; Rousochatzakis, Ioannis; Perkins, Natalia B.
    • Physical Review B, Vol. 97, Issue 12
    • DOI: 10.1103/physrevb.97.125125

    Magnetic field induced evolution of intertwined orders in the Kitaev magnet β Li 2 IrO 3
    journal, May 2018


    Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet α Li 2 IrO 3
    journal, February 2019


    Pressure-induced collapse of the spin-orbital Mott state in the hyperhoneycomb iridate β Li 2 IrO 3
    journal, March 2019


    Possible Quantum Paramagnetism in Compressed Sr 2 IrO 4
    journal, February 2020


    Collective spin dynamics of Z 2 vortex crystals in triangular Kitaev-Heisenberg antiferromagnets
    journal, August 2019


    Unconventional magnetic field response of the hyperhoneycomb Kitaev magnet β Li 2 IrO 3
    journal, January 2020


    X-ray magnetic diffraction under high pressure
    journal, June 2019


    Pressure-Tuned Interactions in Frustrated Magnets: Pathway to Quantum Spin Liquids?
    journal, December 2019