Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr0.94Ir0.78O2.68 single crystals

Zheng, Hao; Terzic, Jasminka; Ye, Feng; Wan, Xiangang G.; Wang, D.; Wang, Jinchen; Wang, Xiaoping; Schlottmann, Pedro; Yuan, S. J.; Cao, Gang

doi:10.1103/physrevb.93.235157

Title: Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr_0.94Ir_0.78O_2.68 single crystals

Abstract

The orthorhombic perovskite SrIrO₃ is a semimetal, an intriguing exception in iridates where the strong spin-orbit interaction coupled with electron correlations tends to impose an insulating state. Here, we report results of our investigation of bulk single-crystal Sr_0.94Ir_0.78O_2.68 or Ir-deficient, orthorhombic perovskite SrIrO₃. It retains the same crystal structure as stoichiometric SrIrO₃ but exhibits a sharp, simultaneous antiferromagnetic (AFM) and metal-insulator (MI) transition occurring in the basal-plane resistivity at 185 K. Above it, the basal-plane resistivity features an extended regime of almost linear temperature dependence up to 800 K but the strong electronic anisotropy renders an insulating behavior in the out-of-plane resistivity. The Hall resistivity undergoes an abrupt sign change and grows below 40 K, which along with the Sommerfeld constant of 20 mJ/mol K² suggests a multiband effect. All results including our first-principles calculations underscore a delicacy of the paramagnetic, metallic state in SrIrO₃ that is in close proximity to an AFM insulating state. The contrasting ground states in isostructural Sr_0.94Ir_0.78O_2.68 and SrIrO₃ illustrate a critical role of lattice distortions and Ir deficiency in rebalancing the ground state in the iridates. Finally, the concurrent AFM and MI transitions reveal a direct correlation between the magnetic transition and formation ofmore »« less

Authors:

Zheng, Hao ^[1]; Terzic, Jasminka ^[1];

^[2]; Wan, Xiangang G. ^[3]; Wang, D. ^[3];

^[4];

^[5]; Schlottmann, Pedro ^[6]; Yuan, S. J. ^[1]; Cao, Gang ^[1]

Univ. of Kentucky, Lexington, KY (United States)
Univ. of Kentucky, Lexington, KY (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Nanjing Univ. (China)
Univ. of Kentucky, Lexington, KY (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Renmin Univ. of China, Beijing (China)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Florida State Univ., Tallahassee, FL (United States)

Publication Date:: Mon Jun 27 00:00:00 EDT 2016

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); National Natural Science Foundation of China (NSFC)

OSTI Identifier:: 1896974

Alternate Identifier(s):: OSTI ID: 1259581

Grant/Contract Number:: AC05-00OR22725; DMR-1265162; FG02-98ER45707

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review. B

Additional Journal Information:: Journal Volume: 93; Journal Issue: 23; 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

Citation Formats


                    Zheng, Hao, Terzic, Jasminka, Ye, Feng, Wan, Xiangang G., Wang, D., Wang, Jinchen, Wang, Xiaoping, Schlottmann, Pedro, Yuan, S. J., and Cao, Gang. Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr0.94Ir0.78O2.68 single crystals.  United States: N. p., 2016. 
Web.  doi:10.1103/physrevb.93.235157.

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                    Zheng, Hao, Terzic, Jasminka, Ye, Feng, Wan, Xiangang G., Wang, D., Wang, Jinchen, Wang, Xiaoping, Schlottmann, Pedro, Yuan, S. J., & Cao, Gang. Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr0.94Ir0.78O2.68 single crystals.  United States.  https://doi.org/10.1103/physrevb.93.235157

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                    Zheng, Hao, Terzic, Jasminka, Ye, Feng, Wan, Xiangang G., Wang, D., Wang, Jinchen, Wang, Xiaoping, Schlottmann, Pedro, Yuan, S. J., and Cao, Gang. Mon .  
"Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr0.94Ir0.78O2.68 single crystals".  United States.  https://doi.org/10.1103/physrevb.93.235157.  https://www.osti.gov/servlets/purl/1896974.

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@article{osti_1896974,

  title        = {Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr0.94Ir0.78O2.68 single crystals},

  author       = {Zheng, Hao and Terzic, Jasminka and Ye, Feng and Wan, Xiangang G. and Wang, D. and Wang, Jinchen and Wang, Xiaoping and Schlottmann, Pedro and Yuan, S. J. and Cao, Gang},

  abstractNote = {The orthorhombic perovskite SrIrO3 is a semimetal, an intriguing exception in iridates where the strong spin-orbit interaction coupled with electron correlations tends to impose an insulating state. Here, we report results of our investigation of bulk single-crystal Sr0.94Ir0.78O2.68 or Ir-deficient, orthorhombic perovskite SrIrO3. It retains the same crystal structure as stoichiometric SrIrO3 but exhibits a sharp, simultaneous antiferromagnetic (AFM) and metal-insulator (MI) transition occurring in the basal-plane resistivity at 185 K. Above it, the basal-plane resistivity features an extended regime of almost linear temperature dependence up to 800 K but the strong electronic anisotropy renders an insulating behavior in the out-of-plane resistivity. The Hall resistivity undergoes an abrupt sign change and grows below 40 K, which along with the Sommerfeld constant of 20 mJ/mol K2 suggests a multiband effect. All results including our first-principles calculations underscore a delicacy of the paramagnetic, metallic state in SrIrO3 that is in close proximity to an AFM insulating state. The contrasting ground states in isostructural Sr0.94Ir0.78O2.68 and SrIrO3 illustrate a critical role of lattice distortions and Ir deficiency in rebalancing the ground state in the iridates. Finally, the concurrent AFM and MI transitions reveal a direct correlation between the magnetic transition and formation of an activation gap in the iridate, which is conspicuously absent in Sr2IrO4.},

  doi          = {10.1103/physrevb.93.235157},

  journal      = {Physical Review. B},

  number       = 23,

  volume       = 93,

  place        = {United States},

  year         = {Mon Jun 27 00:00:00 EDT 2016},

  month        = {Mon Jun 27 00:00:00 EDT 2016}

}

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Title: Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr0.94Ir0.78O2.68 single crystals

Abstract

Citation Formats

Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic SrIrO 3 journal, January 2015

Non-Fermi-liquid behavior in nearly ferromagnetic SrIrO 3 single crystals journal, September 2007

Anomalous magnetic and transport behavior in the magnetic insulator Sr 3 Ir 2 O 7 journal, December 2002

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

High-pressure synthesis of orthorhombic SrIrO3 perovskite and its positive magnetoresistance journal, May 2008

Stabilising the orthorhombic perovskite structure in SrIrO3 through chemical doping. Synthesis, structure and magnetic properties of SrIr1−xMgxO3(0.20 ≤ x ≤ 0.33) journal, January 2013

Observation of a metal-to-insulator transition with both Mott-Hubbard and Slater characteristics in Sr 2 IrO 4 from time-resolved photocarrier dynamics journal, July 2012

Structural and magnetic studies of Sr 2 IrO 4 journal, April 1994

Interplay between spin-orbit coupling and Hubbard interaction in SrIrO 3 and related Pbnm perovskite oxides journal, August 2012

Decoupling of the antiferromagnetic and insulating states in Tb-doped S r 2 Ir O 4 journal, December 2015

A short history of SHELX journal, December 2007

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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Atomically resolved spectroscopic study of Sr2IrO4: Experiment and theory journal, October 2013

Anisotropic Resistivities of Precisely Oxygen Controlled Single-Crystal Bi 2 Sr 2 CaCu 2 O 8 + δ : Systematic Study on ``Spin Gap'' Effect journal, September 1997

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Recent advances in magnetic structure determination by neutron powder diffraction journal, October 1993

Engineering a Spin-Orbital Magnetic Insulator by Tailoring Superlattices journal, June 2015

Weak ferromagnetism, metal-to-nonmetal transition, and negative differential resistivity in single-crystal Sr 2 IrO 4 journal, May 1998

Competition of Superconductivity and Charge Density Waves in Cuprates: Recent Evidence and Interpretation journal, January 2010

Microscopic Study of a Spin-Orbit-Induced Mott Insulator in Ir Oxides journal, November 2010

Structure and properties of the high and low pressure forms of SrIrO3 journal, May 1971

Sr2RhO4 and Sr2IrO4: Structural and magnetic studies of 4d and 5d transition metal analogs of La2CuO4 journal, December 1994

High-temperature resistivity of Sr 2 RuO 4 : Bad metallic transport in a good metal journal, October 1998

Topological crystalline metal in orthorhombic perovskite iridates journal, March 2015

Charge density wave formation accompanying ferromagnetic ordering in quasi-one-dimensional BaIrO3 journal, February 2000

Breakdown of hybridisation at elevated temperatures in some intermetallic compounds journal, March 1985

Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4 journal, March 2009

Compressive strain-induced metal–insulator transition in orthorhombic SrIrO 3 thin films journal, October 2014

Dimensionality-Controlled Insulator-Metal Transition and Correlated Metallic State in 5 d Transition Metal Oxides Sr n + 1 Ir n O 3 n + 1 ( n = 1 , 2, and ∞ ) journal, November 2008

Dimensionality-controlled Mott transition and correlation effects in single-layer and bilayer perovskite iridates journal, June 2013

Anomalous thermal expansion in orthorhombic perovskite SrIrO 3 : Interplay between spin-orbit coupling and the crystal lattice journal, June 2014

Localized-to-itinerant electron transition in Sr 2 Ir 1 − x Ru x O 4 journal, May 1994

Influence of the spin gap on the normal state transport in YBa 2 Cu 4 O 8 journal, March 1993

Violation of the Mott–Ioffe–Regel limit: high-temperature resistivity of itinerant magnets Srn+1RunO3n+1 (n=2,3,∞) and CaRuO3 journal, August 2004

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Electric field tuning of the anomalous Hall effect at oxide interfaces preprint, January 2018

Electronic structure and anomalous Hall effect in the ferromagnetic 3 d − 5 d superlattice SrMnO 3 / SrIrO 3 journal, June 2019

Title: Simultaneous metal-insulator and antiferromagnetic transitions in orthorhombic perovskite iridate Sr_0.94Ir_0.78O_2.68 single crystals

Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic ${SrIrO}_{3}$
journal, January 2015

Non-Fermi-liquid behavior in nearly ferromagnetic ${SrIrO}_{3}$ single crystals
journal, September 2007

Anomalous magnetic and transport behavior in the magnetic insulator ${Sr}_{3} {Ir}_{2} O_{7}$
journal, December 2002

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

High-pressure synthesis of orthorhombic SrIrO3 perovskite and its positive magnetoresistance
journal, May 2008

Stabilising the orthorhombic perovskite structure in SrIrO3 through chemical doping. Synthesis, structure and magnetic properties of SrIr1−xMgxO3(0.20 ≤ x ≤ 0.33)
journal, January 2013

Observation of a metal-to-insulator transition with both Mott-Hubbard and Slater characteristics in Sr $_{2}$ IrO $_{4}$ from time-resolved photocarrier dynamics
journal, July 2012

Structural and magnetic studies of ${Sr}_{2}$ ${IrO}_{4}$
journal, April 1994

Interplay between spin-orbit coupling and Hubbard interaction in SrIrO $_{3}$ and related $Pbnm$ perovskite oxides
journal, August 2012

Decoupling of the antiferromagnetic and insulating states in Tb-doped $S r_{2} Ir O_{4}$
journal, December 2015

A short history of SHELX
journal, December 2007

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

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

Destabilization of the 6H-SrIrO3 polymorph through partial substitution of zinc and lithium
journal, January 2012

Atomically resolved spectroscopic study of Sr2IrO4: Experiment and theory
journal, October 2013

Anisotropic Resistivities of Precisely Oxygen Controlled Single-Crystal ${Bi}_{2} {Sr}_{2} {CaCu}_{2} O_{8 + δ}$ : Systematic Study on ``Spin Gap'' Effect
journal, September 1997

Superconductivity and charge-density waves
journal, December 1979

Recent advances in magnetic structure determination by neutron powder diffraction
journal, October 1993

Engineering a Spin-Orbital Magnetic Insulator by Tailoring Superlattices
journal, June 2015

Weak ferromagnetism, metal-to-nonmetal transition, and negative differential resistivity in single-crystal ${Sr}_{2} {IrO}_{4}$
journal, May 1998

Competition of Superconductivity and Charge Density Waves in Cuprates: Recent Evidence and Interpretation
journal, January 2010

Microscopic Study of a Spin-Orbit-Induced Mott Insulator in Ir Oxides
journal, November 2010

Structure and properties of the high and low pressure forms of SrIrO3
journal, May 1971

Sr2RhO4 and Sr2IrO4: Structural and magnetic studies of 4d and 5d transition metal analogs of La2CuO4
journal, December 1994

High-temperature resistivity of ${Sr}_{2} {RuO}_{4} :$ Bad metallic transport in a good metal
journal, October 1998

Topological crystalline metal in orthorhombic perovskite iridates
journal, March 2015

Charge density wave formation accompanying ferromagnetic ordering in quasi-one-dimensional BaIrO3
journal, February 2000

Breakdown of hybridisation at elevated temperatures in some intermetallic compounds
journal, March 1985

Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4
journal, March 2009

Compressive strain-induced metal–insulator transition in orthorhombic SrIrO ₃ thin films
journal, October 2014

Dimensionality-Controlled Insulator-Metal Transition and Correlated Metallic State in $5 d$ Transition Metal Oxides ${Sr}_{n + 1} {Ir}_{n} O_{3 n + 1}$ ( $n = 1$ , 2, and $\infty$ )
journal, November 2008

Dimensionality-controlled Mott transition and correlation effects in single-layer and bilayer perovskite iridates
journal, June 2013

Anomalous thermal expansion in orthorhombic perovskite ${SrIrO}_{3}$ : Interplay between spin-orbit coupling and the crystal lattice
journal, June 2014

Localized-to-itinerant electron transition in ${Sr}_{2}$ ${Ir}_{1 - x}$ ${Ru}_{x}$ $O_{4}$
journal, May 1994

Influence of the spin gap on the normal state transport in ${YBa}_{2}$ ${Cu}_{4}$ $O_{8}$
journal, March 1993

Violation of the Mott–Ioffe–Regel limit: high-temperature resistivity of itinerant magnets Srn+1RunO3n+1 (n=2,3,∞) and CaRuO3
journal, August 2004

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

Synthesis, structures and properties of transition metal doped SrIrO3
journal, January 2013

Electrical conduction in concentrated disordered transition metal alloys
journal, June 1973

The challenge of spin–orbit-tuned ground states in iridates: a key issues review
journal, February 2018

Electric field tuning of the anomalous Hall effect at oxide interfaces
preprint, January 2018

Electronic structure and anomalous Hall effect in the ferromagnetic $3 d − 5 d$ superlattice ${SrMnO}_{3} / {SrIrO}_{3}$
journal, June 2019