Spin-wave gap collapse in Rh-doped Sr 2 IrO 4

Bertinshaw, J.; Kim, J. K.; Porras, J.; Ueda, K.; Sung, N. H.; Efimenko, A.; Bombardi, A.; Kim, Jungho; Keimer, B.; Kim, B. J.

doi:10.1103/PhysRevB.101.094428

Title: Spin-wave gap collapse in Rh-doped ${Sr}_{2} {IrO}_{4}$

Abstract

We use resonant inelastic x-ray scattering (RIXS) at the Ir L₃ edge to study the effect of hole doping upon the J_eff = $\frac{1}{2}$ Mott-insulating state in Sr₂IrO₄, via Rh replacement of the Ir site. The spin-wave gap, associated with XY-type spin-exchange anisotropy, collapses with increasing Rh content, prior to the suppression of the Mott-insulating state and in contrast to electron doping via La substitution of the Sr site. At the same time, despite heavy damping, the d-d excitation spectra retain their overall amplitude and dispersion character. A careful study of the spin-wave spectrum reveals that deviations from the J₁-J₂-J₃ Heisenberg used to model the pristine system disappear at intermediate doping levels. These findings are interpreted in terms of a modulation of Ir-Ir correlations due to the influence of Rh impurities upon nearby Ir wave functions, even as the single-band J_eff = $\frac{1}{2}$ model remains valid up to full carrier delocalization. They underline the importance of the transition metal site symmetry when doping pseudospin systems such as Sr₂IrO₄.

Authors:

Bertinshaw, J.;

; Porras, J.;

; Sung, N. H.; Efimenko, A.;

;

; Keimer, B.; Kim, B. J.

Publication Date:: Mon Mar 23 00:00:00 EDT 2020

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: European Research Council (ERC); Institute for Basic Science; Alexander von Humboldt Foundation; National Research Foundation of Korea (NRF); USDOE Office of Science (SC)

OSTI Identifier:: 1605964

Alternate Identifier(s):: OSTI ID: 1607867

Grant/Contract Number:: AC02-06CH11357; 669550; 2018H1A2A1059958

Resource Type:: Published Article

Journal Name:: Physical Review. B

Additional Journal Information:: Journal Name: Physical Review. B Journal Volume: 101 Journal Issue: 9; 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; Magnetic interactions; spin-orbit coupling; iridates; resonant inelastic x-ray scattering

Citation Formats


                    Bertinshaw, J., Kim, J. K., Porras, J., Ueda, K., Sung, N. H., Efimenko, A., Bombardi, A., Kim, Jungho, Keimer, B., and Kim, B. J. Spin-wave gap collapse in Rh-doped Sr 2 IrO 4.  United States: N. p., 2020. 
Web.  doi:10.1103/PhysRevB.101.094428.

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                    Bertinshaw, J., Kim, J. K., Porras, J., Ueda, K., Sung, N. H., Efimenko, A., Bombardi, A., Kim, Jungho, Keimer, B., & Kim, B. J. Spin-wave gap collapse in Rh-doped Sr 2 IrO 4.  United States.  https://doi.org/10.1103/PhysRevB.101.094428

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                    Bertinshaw, J., Kim, J. K., Porras, J., Ueda, K., Sung, N. H., Efimenko, A., Bombardi, A., Kim, Jungho, Keimer, B., and Kim, B. J. Mon .  
"Spin-wave gap collapse in Rh-doped Sr 2 IrO 4".  United States.  https://doi.org/10.1103/PhysRevB.101.094428.

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@article{osti_1605964,

  title        = {Spin-wave gap collapse in Rh-doped Sr 2 IrO 4},

  author       = {Bertinshaw, J. and Kim, J. K. and Porras, J. and Ueda, K. and Sung, N. H. and Efimenko, A. and Bombardi, A. and Kim, Jungho and Keimer, B. and Kim, B. J.},

  abstractNote = {We use resonant inelastic x-ray scattering (RIXS) at the Ir L3 edge to study the effect of hole doping upon the Jeff = 12 Mott-insulating state in Sr2IrO4, via Rh replacement of the Ir site. The spin-wave gap, associated with XY-type spin-exchange anisotropy, collapses with increasing Rh content, prior to the suppression of the Mott-insulating state and in contrast to electron doping via La substitution of the Sr site. At the same time, despite heavy damping, the d-d excitation spectra retain their overall amplitude and dispersion character. A careful study of the spin-wave spectrum reveals that deviations from the J1-J2-J3 Heisenberg used to model the pristine system disappear at intermediate doping levels. These findings are interpreted in terms of a modulation of Ir-Ir correlations due to the influence of Rh impurities upon nearby Ir wave functions, even as the single-band Jeff = 12 model remains valid up to full carrier delocalization. They underline the importance of the transition metal site symmetry when doping pseudospin systems such as Sr2IrO4.},

  doi          = {10.1103/PhysRevB.101.094428},

  journal      = {Physical Review. B},

  number       = 9,

  volume       = 101,

  place        = {United States},

  year         = {Mon Mar 23 00:00:00 EDT 2020},

  month        = {Mon Mar 23 00:00:00 EDT 2020}

}

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Works referenced in this record:

Spin-orbit-controlled metal–insulator transition in Sr2IrO4
journal, January 2020

Zwartsenberg, B.; Day, R. P.; Razzoli, E.
Nature Physics, Vol. 16, Issue 3
DOI: 10.1038/s41567-019-0750-y

Spin-Orbit Physics Giving Rise to Novel Phases in Correlated Systems: Iridates and Related Materials
journal, March 2016

Rau, Jeffrey G.; Lee, Eric Kin-Ho; Kee, Hae-Young
Annual Review of Condensed Matter Physics, Vol. 7, Issue 1
DOI: 10.1146/annurev-conmatphys-031115-011319

Square Lattice Iridates
journal, March 2019

Bertinshaw, Joel; Kim, Y. K.; Khaliullin, Giniyat
Annual Review of Condensed Matter Physics, Vol. 10, Issue 1
DOI: 10.1146/annurev-conmatphys-031218-013113

Pseudospin-lattice coupling in the spin-orbit Mott insulator ${Sr}_{2} {IrO}_{4}$
journal, February 2019

Porras, J.; Bertinshaw, J.; Liu, H.
Physical Review B, Vol. 99, Issue 8
DOI: 10.1103/PhysRevB.99.085125

A high-energy-resolution resonant inelastic X-ray scattering spectrometer at ID20 of the European Synchrotron Radiation Facility
journal, February 2018

Moretti Sala, M.; Martel, K.; Henriquet, C.
Journal of Synchrotron Radiation, Vol. 25, Issue 2
DOI: 10.1107/S1600577518001200

Novel $J_{eff} = 1 / 2$ Mott State Induced by Relativistic Spin-Orbit Coupling in ${Sr}_{2} {IrO}_{4}$
journal, August 2008

Kim, B. J.; Jin, Hosub; Moon, S. J.
Physical Review Letters, Vol. 101, Issue 7
DOI: 10.1103/PhysRevLett.101.076402

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

Witczak-Krempa, William; Chen, Gang; Kim, Yong Baek
Annual Review of Condensed Matter Physics, Vol. 5, Issue 1
DOI: 10.1146/annurev-conmatphys-020911-125138

Mott physics and band topology in materials with strong spin–orbit interaction
journal, March 2010

Pesin, Dmytro; Balents, Leon
Nature Physics, Vol. 6, Issue 5
DOI: 10.1038/nphys1606

MERIX—Next generation medium energy resolution inelastic X-ray scattering instrument at the APS
journal, June 2013

Shvyd’ko, Yu. V.; Hill, J. P.; Burns, C. A.
Journal of Electron Spectroscopy and Related Phenomena, Vol. 188
DOI: 10.1016/j.elspec.2012.09.003

Formation of an incoherent metallic state in Rh-doped ${Sr}_{2} {IrO}_{4}$
journal, April 2018

Louat, A.; Bert, F.; Serrier-Garcia, L.
Physical Review B, Vol. 97, Issue 16
DOI: 10.1103/PhysRevB.97.161109

Magnetic Excitation Spectra of ${Sr}_{2} {IrO}_{4}$ Probed by Resonant Inelastic X-Ray Scattering: Establishing Links to Cuprate Superconductors
journal, April 2012

Kim, Jungho; Casa, D.; Upton, M. H.
Physical Review Letters, Vol. 108, Issue 17
DOI: 10.1103/PhysRevLett.108.177003

Excitonic quasiparticles in a spin–orbit Mott insulator
journal, July 2014

Kim, Jungho; Daghofer, M.; Said, A. H.
Nature Communications, Vol. 5, Issue 1
DOI: 10.1038/ncomms5453

Importance of $X Y$ anisotropy in ${Sr}_{2} {IrO}_{4}$ revealed by magnetic critical scattering experiments
journal, July 2015

Vale, J. G.; Boseggia, S.; Walker, H. C.
Physical Review B, Vol. 92, Issue 2
DOI: 10.1103/PhysRevB.92.020406

Magnetic excitations in hole-doped ${Sr}_{2} {IrO}_{4}$ : Comparison with electron-doped cuprates
journal, September 2019

Clancy, J. P.; Gretarsson, H.; Upton, M. H.
Physical Review B, Vol. 100, Issue 10
DOI: 10.1103/PhysRevB.100.104414

Crystal growth and intrinsic magnetic behaviour of Sr ₂ IrO ₄
journal, January 2016

Sung, N. H.; Gretarsson, H.; Proepper, D.
Philosophical Magazine, Vol. 96, Issue 4
DOI: 10.1080/14786435.2015.1134835

Electron-Doped ${Sr}_{2} {IrO}_{4}$ : An Analogue of Hole-Doped Cuprate Superconductors Demonstrated by Scanning Tunneling Microscopy
journal, November 2015

Yan, Y. J.; Ren, M. Q.; Xu, H. C.
Physical Review X, Vol. 5, Issue 4
DOI: 10.1103/PhysRevX.5.041018

Twisted Hubbard Model for ${Sr}_{2} {IrO}_{4}$ : Magnetism and Possible High Temperature Superconductivity
journal, March 2011

Wang, Fa; Senthil, T.
Physical Review Letters, Vol. 106, Issue 13
DOI: 10.1103/PhysRevLett.106.136402

Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet
journal, June 2014

Kim, Y. K.; Krupin, O.; Denlinger, J. D.
Science, Vol. 345, Issue 6193
DOI: 10.1126/science.1251151

High-energy spin and charge excitations in electron-doped copper oxide superconductors
journal, April 2014

Ishii, K.; Fujita, M.; Sasaki, T.
Nature Communications, Vol. 5, Issue 1
DOI: 10.1038/ncomms4714

Observation of a d-wave gap in electron-doped Sr2IrO4
journal, October 2015

Kim, Y. K.; Sung, N. H.; Denlinger, J. D.
Nature Physics, Vol. 12, Issue 1
DOI: 10.1038/nphys3503

Dilute magnetism and spin-orbital percolation effects in ${Sr}_{2}$ ${Ir}_{1 - x}$ ${Rh}_{x}$ $O_{4}$
journal, February 2014

Clancy, J. P.; Lupascu, A.; Gretarsson, H.
Physical Review B, Vol. 89, Issue 5
DOI: 10.1103/PhysRevB.89.054409

${Sr}_{2} {Ir}_{1 - x} {Rh}_{x} O_{4} (x < 0.5)$ : An inhomogeneous $j_{eff} = \frac{1}{2}$ Hubbard system
journal, August 2015

Chikara, Shalinee; Haskel, Daniel; Sim, Jae-Hoon
Physical Review B, Vol. 92, Issue 8
DOI: 10.1103/PhysRevB.92.081114

Spin Waves and Electronic Interactions in ${La}_{2} {CuO}_{4}$
journal, June 2001

Coldea, R.; Hayden, S. M.; Aeppli, G.
Physical Review Letters, Vol. 86, Issue 23
DOI: 10.1103/PhysRevLett.86.5377

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

Jackeli, G.; Khaliullin, G.
Physical Review Letters, Vol. 102, Issue 1
DOI: 10.1103/PhysRevLett.102.017205

Anisotropic softening of magnetic excitations in lightly electron-doped ${Sr}_{2} {IrO}_{4}$
journal, June 2016

Liu, X.; Dean, M. P. M.; Meng, Z. Y.
Physical Review B, Vol. 93, Issue 24
DOI: 10.1103/PhysRevB.93.241102

Persistent Paramagnons Deep in the Metallic Phase of ${Sr}_{2 - x} {La}_{x} {IrO}_{4}$
journal, September 2016

Gretarsson, H.; Sung, N. H.; Porras, J.
Physical Review Letters, Vol. 117, Issue 10
DOI: 10.1103/PhysRevLett.117.107001

Anisotropic exchange and spin-wave damping in pure and electron-doped ${Sr}_{2} {IrO}_{4}$
journal, August 2017

Pincini, D.; Vale, J. G.; Donnerer, C.
Physical Review B, Vol. 96, Issue 7
DOI: 10.1103/PhysRevB.96.075162

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Title: Spin-wave gap collapse in Rh-doped Sr 2 IrO 4

Abstract

Citation Formats

Spin-orbit-controlled metal–insulator transition in Sr2IrO4 journal, January 2020

Spin-Orbit Physics Giving Rise to Novel Phases in Correlated Systems: Iridates and Related Materials journal, March 2016

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Pseudospin-lattice coupling in the spin-orbit Mott insulator Sr 2 IrO 4 journal, February 2019

A high-energy-resolution resonant inelastic X-ray scattering spectrometer at ID20 of the European Synchrotron Radiation Facility journal, February 2018

Novel J eff = 1 / 2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr 2 IrO 4 journal, August 2008

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

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MERIX—Next generation medium energy resolution inelastic X-ray scattering instrument at the APS journal, June 2013

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Importance of X Y anisotropy in Sr 2 IrO 4 revealed by magnetic critical scattering experiments journal, July 2015

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Title: Spin-wave gap collapse in Rh-doped ${Sr}_{2} {IrO}_{4}$

Spin-orbit-controlled metal–insulator transition in Sr2IrO4
journal, January 2020

Spin-Orbit Physics Giving Rise to Novel Phases in Correlated Systems: Iridates and Related Materials
journal, March 2016

Square Lattice Iridates
journal, March 2019

Pseudospin-lattice coupling in the spin-orbit Mott insulator ${Sr}_{2} {IrO}_{4}$
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A high-energy-resolution resonant inelastic X-ray scattering spectrometer at ID20 of the European Synchrotron Radiation Facility
journal, February 2018

Novel $J_{eff} = 1 / 2$ Mott State Induced by Relativistic Spin-Orbit Coupling in ${Sr}_{2} {IrO}_{4}$
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