Sr2Ir1-xRhxO4(x<0.5) : An inhomogeneous jeff=12 Hubbard system

Chikara, Shalinee; Haskel, Daniel; Sim, Jae-Hoon; Kim, Heung-Sik; Chen, Cheng-Chien; Fabbris, G.; Veiga, L. S.  I.; Souza-Neto, N. M.; Terzic, J.; Butrouna, K.; Cao, G.; Han, Myung Joon; van Veenendaal, Michel

doi:10.1103/PhysRevB.92.081114

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

Journal Article · Mon Aug 24 00:00:00 EDT 2015 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.92.081114· OSTI ID:1339133

Chikara, Shalinee; Haskel, Daniel; Sim, Jae-Hoon; Kim, Heung-Sik; Chen, Cheng-Chien; Fabbris, G.; Veiga, L. S. I.; Souza-Neto, N. M.; Terzic, J.; Butrouna, K.; Cao, G.; Han, Myung Joon; van Veenendaal, Michel

In a combined experimental and theoretical study, we investigate the properties of Sr ₂ Ir _{1 - x} Rh_x O ₄ . From the branching ratios of the L -edge isotropic x-ray absorption spectra, we determine that the spin-orbit coupling is remarkably independent of x for both iridium and rhodium sites. DFT + U calculations show that the doping is close to isoelectronic and introduces impurity bands of predominantly rhodium character close to the lower Hubbard band. Overlap of these two bands leads to metallic behavior. Since the low-energy states for x < 0.5 have predominantly j _eff = 1 /2 character, we suggest that the electronic properties of this material can be described by an inhomogeneous Hubbard model, where the on-site energies change due to local variations in the spin-orbit interaction strength combined with additional changes in binding energy.

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

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

DOE Contract Number:: AC02-06CH11357

OSTI ID:: 1339133

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 8; ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

References (20)

Dilute magnetism and spin-orbital percolation effects in ${Sr}_{2}$ ${Ir}_{1 - x}$ ${Rh}_{x}$ $O_{4}$ Clancy, J. P.; Lupascu, A.; Gretarsson, H. Physical Review B, Vol. 89, Issue 5 https://doi.org/10.1103/physrevb.89.054409	journal	February 2014
Transport Properties and Cationic Substitutions in Sr2IrO4 Klein, Y.; Terasaki, I. Journal of Electronic Materials, Vol. 38, Issue 7 https://doi.org/10.1007/s11664-008-0642-x	journal	January 2009
Insight on the electronic state of Sr ₂ IrO ₄ revealed by cationic substitutions Klein, Y.; Terasaki, I. Journal of Physics: Condensed Matter, Vol. 20, Issue 29 https://doi.org/10.1088/0953-8984/20/29/295201	journal	June 2008
Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4 Kim, B. J.; Ohsumi, H.; Komesu, T. Science, Vol. 323, Issue 5919 https://doi.org/10.1126/science.1167106	journal	March 2009
Electron correlations in narrow energy bands III. An improved solution Hubbard, J. Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, Vol. 281, Issue 1386, p. 401-419 https://doi.org/10.1098/rspa.1964.0190	journal	September 1964
Spin-orbit tuned metal-insulator transitions in single-crystal Sr $_{2}$ Ir $_{1 - x}$ Rh $_{x}$ O $_{4}$ ( $0 \leq x \leq 1$ ) Qi, T. F.; Korneta, O. B.; Li, L. Physical Review B, Vol. 86, Issue 12 https://doi.org/10.1103/physrevb.86.125105	journal	September 2012
Novel $J_{eff} = 1 / 2$ Mott State Induced by Relativistic Spin-Orbit Coupling in ${Sr}_{2} {IrO}_{4}$ Kim, B. J.; Jin, Hosub; Moon, S. J. Physical Review Letters, Vol. 101, Issue 7 https://doi.org/10.1103/PhysRevLett.101.076402	journal	August 2008
Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models Jackeli, G.; Khaliullin, G. Physical Review Letters, Vol. 102, Issue 1 https://doi.org/10.1103/PhysRevLett.102.017205	journal	January 2009
Magnetic Excitation Spectra of ${Sr}_{2} {IrO}_{4}$ Probed by Resonant Inelastic X-Ray Scattering: Establishing Links to Cuprate Superconductors Kim, Jungho; Casa, D.; Upton, M. H. Physical Review Letters, Vol. 108, Issue 17 https://doi.org/10.1103/PhysRevLett.108.177003	journal	April 2012
Pressure Tuning of the Spin-Orbit Coupled Ground State in ${Sr}_{2} {IrO}_{4}$ Haskel, D.; Fabbris, G.; Zhernenkov, Mikhail Physical Review Letters, Vol. 109, Issue 2 https://doi.org/10.1103/PhysRevLett.109.027204	journal	July 2012
Insulator-metal transition driven by change of doping and spin-orbit interaction in Sr $_{2}$ IrO $_{4}$ Lee, J. S.; Krockenberger, Y.; Takahashi, K. S. Physical Review B, Vol. 85, Issue 3 https://doi.org/10.1103/PhysRevB.85.035101	journal	January 2012
Orbital Magnetism and Spin-Orbit Effects in the Electronic Structure of ${BaIrO}_{3}$ Laguna-Marco, M. A.; Haskel, D.; Souza-Neto, N. Physical Review Letters, Vol. 105, Issue 21 https://doi.org/10.1103/PhysRevLett.105.216407	journal	November 2010
Local Probe for Spin-Orbit Interaction van der Laan, G.; Thole, B. T. Physical Review Letters, Vol. 60, Issue 19 https://doi.org/10.1103/PhysRevLett.60.1977	journal	May 1988
Reduced Effective Spin-Orbital Degeneracy and Spin-Orbital Ordering in Paramagnetic Transition-Metal Oxides: ${Sr}_{2} {IrO}_{4}$ versus ${Sr}_{2} {RhO}_{4}$ Martins, Cyril; Aichhorn, Markus; Vaugier, Loïg Physical Review Letters, Vol. 107, Issue 26 https://doi.org/10.1103/PhysRevLett.107.266404	journal	December 2011
Strong Spin-Orbit Coupling Effects on the Fermi Surface of ${Sr}_{2} {RuO}_{4}$ and ${Sr}_{2} {RhO}_{4}$ Haverkort, M. W.; Elfimov, I. S.; Tjeng, L. H. Physical Review Letters, Vol. 101, Issue 2 https://doi.org/10.1103/PhysRevLett.101.026406	journal	July 2008
Optical Conductivity in Mott-Hubbard Systems Rozenberg, M. J.; Kotliar, G.; Kajueter, H. Physical Review Letters, Vol. 75, Issue 1 https://doi.org/10.1103/PhysRevLett.75.105	journal	July 1995
Ordered states in the disordered Hubbard model Denteneer, P. J. H.; Ulmke, M.; Scalettar, R. T. Physica A: Statistical Mechanics and its Applications, Vol. 251, Issue 1-2 https://doi.org/10.1016/S0378-4371(97)00602-X	journal	March 1998
Inhomogeneous Metallic Phase in a Disordered Mott Insulator in Two Dimensions Heidarian, Dariush; Trivedi, Nandini Physical Review Letters, Vol. 93, Issue 12 https://doi.org/10.1103/PhysRevLett.93.126401	journal	September 2004
Optical Conductivity in Mott-Hubbard Systems Rozenberg, M. J.; Kotliar, G.; Kajueter, H. arXiv https://doi.org/10.48550/arxiv.cond-mat/9507002	text	January 1995
Ordered states in the disordered Hubbard model Denteneer, P. J. H.; Ulmke, M.; Scalettar, R. T. arXiv https://doi.org/10.48550/arxiv.cond-mat/9805100	text	January 1998

Cited By (4)

Preferential quenching of 5 d antiferromagnetic order in Sr ₃ (Ir _{1− x} Mn _x ) ₂ O ₇ Schmehr, Julian L.; Zoghlin, Eli; Porter, Zach Journal of Physics: Condensed Matter, Vol. 31, Issue 24 https://doi.org/10.1088/1361-648x/ab0ef9	journal	April 2019
Competition between disorder and Coulomb interaction in a two-dimensional plaquette Hubbard model Lee, Hunpyo; Jeschke, Harald O.; Valentí, Roser Physical Review B, Vol. 93, Issue 22 https://doi.org/10.1103/physrevb.93.224203	journal	June 2016
Charge partitioning and anomalous hole doping in Rh-doped ${Sr}_{2} {IrO}_{4}$ Chikara, S.; Fabbris, G.; Terzic, J. Physical Review B, Vol. 95, Issue 6 https://doi.org/10.1103/physrevb.95.060407	journal	February 2017
Competition between disorder and Coulomb interaction in a two-dimensional plaquette Hubbard model Lee, Hunpyo; Jeschke, Harald O.; Valenti, Roser arXiv https://doi.org/10.48550/arxiv.1605.08514	text	January 2016

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