Switchable orbital polarization and magnetization in strained LaCoO3 films

Guo, Er-Jia; Desautels, Ryan D.; Keavney, David; Herklotz, Andreas; Ward, T. Zac; Fitzsimmons, Michael R.; Lee, Ho Nyung

doi:10.1103/PhysRevMaterials.3.014407

Title: Switchable orbital polarization and magnetization in strained $LaCo O_{3}$ films

Abstract

Strain engineering of epitaxial heterostructures offers opportunities to control the orbital degree of freedom by lifting the degeneracy of e_g states. In this work, we show that the orbital occupation in LaCoO₃ (LCO) films can be switched between two degenerate e_g bands with epitaxial strain. The orbital polarization of nearly -100% (or 100%) is controlled by depleting occupation of the d_x2-y2 (or d(_3z2-r2) orbital entirely in LCO for large compressive (or moderate tensile) strain. The change of electronic configuration associated with the spin-state transition modulates the magnetization of strained LCO films. Under compressive strain, LCO films exhibit a small magnetization without long-range ferromagnetic ordering. With tensile-strain increases, the magnetization of LCO films increases and reaches the maximum value when the bonding angle (Co-O-Co) is close to 180° and the in-plane bond length (Co-O) is unstretched. Our results highlight the role of octahedral distortion and spin-state crossover in tailoring the magnetic properties of cobaltite thin films, indicating an attractive route to deliberately control the orbital polarization that can be tuned to maximize the functionality of oxide heterostructures.

Authors:

Guo, Er-Jia ^[1]; Desautels, Ryan D. ^[2]; Keavney, David ^[3]; Herklotz, Andreas ^[4]; Ward, T. Zac ^[2]; Fitzsimmons, Michael R. ^[5]; Lee, Ho Nyung ^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Argonne National Lab. (ANL), Lemont, IL (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Martin Luther Univ. of Halle-Wittenberg (MLU), Halle (Germany)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

Publication Date:: Tue Jan 15 00:00:00 EST 2019

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

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

OSTI Identifier:: 1505601

Alternate Identifier(s):: OSTI ID: 1490921; OSTI ID: 1607130

Grant/Contract Number:: AC02-06CH11357; AC02-06CH1135; AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review Materials

Additional Journal Information:: Journal Volume: 3; Journal Issue: 1; Journal ID: ISSN 2475-9953

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; X-ray scattering; Orbital polarization; ferroelastic materials; ferromagnetism; strain engineering

Citation Formats


                    Guo, Er-Jia, Desautels, Ryan D., Keavney, David, Herklotz, Andreas, Ward, T. Zac, Fitzsimmons, Michael R., and Lee, Ho Nyung. Switchable orbital polarization and magnetization in strained LaCoO3 films.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevMaterials.3.014407.

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                    Guo, Er-Jia, Desautels, Ryan D., Keavney, David, Herklotz, Andreas, Ward, T. Zac, Fitzsimmons, Michael R., & Lee, Ho Nyung. Switchable orbital polarization and magnetization in strained LaCoO3 films.  United States.  https://doi.org/10.1103/PhysRevMaterials.3.014407

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                    Guo, Er-Jia, Desautels, Ryan D., Keavney, David, Herklotz, Andreas, Ward, T. Zac, Fitzsimmons, Michael R., and Lee, Ho Nyung. Tue .  
"Switchable orbital polarization and magnetization in strained LaCoO3 films".  United States.  https://doi.org/10.1103/PhysRevMaterials.3.014407.  https://www.osti.gov/servlets/purl/1505601.

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@article{osti_1505601,

  title        = {Switchable orbital polarization and magnetization in strained LaCoO3 films},

  author       = {Guo, Er-Jia and Desautels, Ryan D. and Keavney, David and Herklotz, Andreas and Ward, T. Zac and Fitzsimmons, Michael R. and Lee, Ho Nyung},

  abstractNote = {Strain engineering of epitaxial heterostructures offers opportunities to control the orbital degree of freedom by lifting the degeneracy of eg states. In this work, we show that the orbital occupation in LaCoO3 (LCO) films can be switched between two degenerate eg bands with epitaxial strain. The orbital polarization of nearly -100% (or 100%) is controlled by depleting occupation of the dx2-y2 (or d(3z2-r2) orbital entirely in LCO for large compressive (or moderate tensile) strain. The change of electronic configuration associated with the spin-state transition modulates the magnetization of strained LCO films. Under compressive strain, LCO films exhibit a small magnetization without long-range ferromagnetic ordering. With tensile-strain increases, the magnetization of LCO films increases and reaches the maximum value when the bonding angle (Co-O-Co) is close to 180° and the in-plane bond length (Co-O) is unstretched. Our results highlight the role of octahedral distortion and spin-state crossover in tailoring the magnetic properties of cobaltite thin films, indicating an attractive route to deliberately control the orbital polarization that can be tuned to maximize the functionality of oxide heterostructures.},

  doi          = {10.1103/PhysRevMaterials.3.014407},

  journal      = {Physical Review Materials},

  number       = 1,

  volume       = 3,

  place        = {United States},

  year         = {Tue Jan 15 00:00:00 EST 2019},

  month        = {Tue Jan 15 00:00:00 EST 2019}

}

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Works referencing / citing this record:

Structural, electronic, transport and magnetic studies of LaCo _1 − x Ni _x O ₃ (x = 0, 0.3) thin films
journal, December 2019

Kumar, Ashok; Kumar, Vinod; Shukla, Dinesh
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Maximization of ferromagnetism in $LaCo O_{3}$ films by competing symmetry
journal, November 2019

Li, Sisi; Wang, Jiesu; Zhang, Qinghua
Physical Review Materials, Vol. 3, Issue 11
DOI: 10.1103/physrevmaterials.3.114409

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Similar Records

Title: Switchable orbital polarization and magnetization in strained LaCo O 3 films

Abstract

Citation Formats

Strain-driven magnetism in LaCoO 3 thin films journal, January 2009

Effect of Interfacial Octahedral Behavior in Ultrathin Manganite Films journal, April 2014

Spin State Transition in LaCoO 3 Studied Using Soft X-ray Absorption Spectroscopy and Magnetic Circular Dichroism journal, October 2006

Structure and Properties of Functional Oxide Thin Films: Insights From Electronic-Structure Calculations journal, July 2011

First-Order Localized-Electron ⇆ Collective-Electron Transition in LaCo O 3 journal, March 1967

Different Look at the Spin State of Co 3 + Ions in a CoO 5 Pyramidal Coordination journal, May 2004

Nanoscale Spin-State Ordering in LaCoO 3 Epitaxial Thin Films journal, April 2014

Interfacial Symmetry Control of Emergent Ferromagnetism at the Nanoscale journal, August 2016

Critical thickness and orbital ordering in ultrathin La 0.7 Sr 0.3 MnO 3 films journal, September 2008

Sum Rules and Fundamental Spectra of Magnetic X-Ray Dichroism in Crystal Field Symmetry journal, June 1994

Ferroelasticity and related properties of crystals journal, January 1982

Mechanical properties of LaCoO3 based ceramics journal, January 2000

Monoclinic Ferroelastic Domains in LaCoO3-Based Perovskites journal, December 2007

Controlled lateral anisotropy in correlated manganite heterostructures by interface-engineered oxygen octahedral coupling journal, March 2016

Reversible strain effect on the magnetization of LaCoO 3 films journal, March 2009

Tuning the magnetic properties of La Co O 3 thin films by epitaxial strain journal, January 2008

Ferromagnetism and Charge Order from a Frozen Electron Configuration in Strained Epitaxial LaCoO 3 journal, May 2018

Bulk modulus anomaly in R Co O 3 ( R = La , Pr, and Nd) journal, June 2005

In-situ neutron diffraction of LaCoO 3 perovskite under uniaxial compression. II. Elastic properties journal, July 2014

In Situ Observation of Oxygen Vacancy Dynamics and Ordering in the Epitaxial LaCoO 3 System journal, June 2017

Spin-Orbital Superstructure in Strained Ferrimagnetic Perovskite Cobalt Oxide journal, July 2013

Pressure-induced intermediate-to-low spin state transition in LaCoO 3 journal, April 2003

Long-range ferromagnetic order in LaCoO 3 − δ epitaxial films due to the interplay of epitaxial strain and oxygen vacancy ordering journal, April 2015

Ferromagnetism in La Co O 3 journal, July 2004

Ferromagnetic order in epitaxially strained La Co O 3 thin films journal, April 2007

Tensile-Strain-Dependent Spin States in Epitaxial LaCoO 3 Thin Films journal, May 2018

Electric-field control of tri-state phase transformation with a selective dual-ion switch journal, May 2017

Structural phenomena associated with the spin-state transition in LaCoO 3 journal, September 2002

Strain-Induced Spin States in Atomically Ordered Cobaltites journal, January 2012

Influence of rare-earth ion radii on the low-spin to intermediate-spin state transition in lanthanide cobaltite perovskites: LaCoO 3 versus HoCoO 3 journal, December 2003

Correlating interfacial octahedral rotations with magnetism in (LaMnO3+δ)N/(SrTiO3)N superlattices journal, July 2014

Absorption of circularly polarized x rays in iron text, January 1987

Structural, electronic, transport and magnetic studies of LaCo 1 − x Ni x O 3 (x = 0, 0.3) thin films journal, December 2019

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Title: Switchable orbital polarization and magnetization in strained $LaCo O_{3}$ films

Strain-driven magnetism in ${LaCoO}_{3}$ thin films
journal, January 2009

Effect of Interfacial Octahedral Behavior in Ultrathin Manganite Films
journal, April 2014

Spin State Transition in ${LaCoO}_{3}$ Studied Using Soft X-ray Absorption Spectroscopy and Magnetic Circular Dichroism
journal, October 2006

Structure and Properties of Functional Oxide Thin Films: Insights From Electronic-Structure Calculations
journal, July 2011

First-Order Localized-Electron $⇆$ Collective-Electron Transition in LaCo $O_{3}$
journal, March 1967

Different Look at the Spin State of ${Co}^{3 +}$ Ions in a ${CoO}_{5}$ Pyramidal Coordination
journal, May 2004

Nanoscale Spin-State Ordering in LaCoO ₃ Epitaxial Thin Films
journal, April 2014

Interfacial Symmetry Control of Emergent Ferromagnetism at the Nanoscale
journal, August 2016

Critical thickness and orbital ordering in ultrathin ${La}_{0.7} {Sr}_{0.3} {MnO}_{3}$ films
journal, September 2008

Sum Rules and Fundamental Spectra of Magnetic X-Ray Dichroism in Crystal Field Symmetry
journal, June 1994

Ferroelasticity and related properties of crystals
journal, January 1982

Mechanical properties of LaCoO3 based ceramics
journal, January 2000

Monoclinic Ferroelastic Domains in LaCoO3-Based Perovskites
journal, December 2007

Controlled lateral anisotropy in correlated manganite heterostructures by interface-engineered oxygen octahedral coupling
journal, March 2016

Reversible strain effect on the magnetization of ${LaCoO}_{3}$ films
journal, March 2009

Tuning the magnetic properties of $La Co O_{3}$ thin films by epitaxial strain
journal, January 2008

Ferromagnetism and Charge Order from a Frozen Electron Configuration in Strained Epitaxial ${LaCoO}_{3}$
journal, May 2018

Bulk modulus anomaly in $R Co O_{3}$ ( $R = La$ , Pr, and Nd)
journal, June 2005

In-situ neutron diffraction of LaCoO ₃ perovskite under uniaxial compression. II. Elastic properties
journal, July 2014

In Situ Observation of Oxygen Vacancy Dynamics and Ordering in the Epitaxial LaCoO ₃ System
journal, June 2017

Spin-Orbital Superstructure in Strained Ferrimagnetic Perovskite Cobalt Oxide
journal, July 2013

Pressure-induced intermediate-to-low spin state transition in ${LaCoO}_{3}$
journal, April 2003

Long-range ferromagnetic order in ${LaCoO}_{3 - δ}$ epitaxial films due to the interplay of epitaxial strain and oxygen vacancy ordering
journal, April 2015

Ferromagnetism in $La Co O_{3}$
journal, July 2004

Ferromagnetic order in epitaxially strained $La Co O_{3}$ thin films
journal, April 2007

Tensile-Strain-Dependent Spin States in Epitaxial ${LaCoO}_{3}$ Thin Films
journal, May 2018

Electric-field control of tri-state phase transformation with a selective dual-ion switch
journal, May 2017

Structural phenomena associated with the spin-state transition in ${LaCoO}_{3}$
journal, September 2002

Strain-Induced Spin States in Atomically Ordered Cobaltites
journal, January 2012

Influence of rare-earth ion radii on the low-spin to intermediate-spin state transition in lanthanide cobaltite perovskites: ${LaCoO}_{3}$ versus ${HoCoO}_{3}$
journal, December 2003

Correlating interfacial octahedral rotations with magnetism in (LaMnO3+δ)N/(SrTiO3)N superlattices
journal, July 2014

Absorption of circularly polarized x rays in iron
text, January 1987

Structural, electronic, transport and magnetic studies of LaCo _1 − x Ni _x O ₃ (x = 0, 0.3) thin films
journal, December 2019

Maximization of ferromagnetism in $LaCo O_{3}$ films by competing symmetry
journal, November 2019