Probing the band alignment in rectifying SrIrO3/Nb:SrTiO3 heterostructures

Kim, B. S. Y.; Birkhölzer, Y. A.; Feng, X.; Hikita, Y.; Hwang, H. Y.

doi:10.1063/1.5087956

Title: Probing the band alignment in rectifying SrIrO₃/Nb:SrTiO₃ heterostructures

Abstract

Here, we have examined the band alignment in SrIrO₃/Nb:SrTiO₃ (001) heterojunctions at room temperature using three independent techniques: current–voltage and capacitance–voltage measurements and internal photoemission spectroscopy. We find near-ideal rectifying behavior across the junction, which provides the opportunity to establish the band alignment via Schottky barrier height extractions in the metal-semiconductor junction approximation. The Schottky barrier height deduced from these measurements agrees well with each other within ~14%, with an average value of 1.44 ± 0.11 eV. These results provide a foundation for designing oxide heterostructures to harness the strong spin-orbit coupling and electrochemical properties of strontium iridate.

Authors:

Kim, B. S. Y. ^[1]; Birkhölzer, Y. A. ^[2]; Feng, X. ^[1]; Hikita, Y. ^[3]; Hwang, H. Y. ^[4]

Stanford Univ., Stanford, CA (United States)
Stanford Univ., Stanford, CA (United States); Univ. of Twente (The Netherlands)
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)

Publication Date:: 2019-04-04

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1528890

Alternate Identifier(s):: OSTI ID: 1505009

Grant/Contract Number:: ECCS-1542152; AC02-76SF00515; GBMF4415

Resource Type:: Accepted Manuscript

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 114; Journal Issue: 13; Journal ID: ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats


                    Kim, B. S. Y., Birkhölzer, Y. A., Feng, X., Hikita, Y., and Hwang, H. Y. Probing the band alignment in rectifying SrIrO3/Nb:SrTiO3 heterostructures.  United States: N. p., 2019. 
Web.  doi:10.1063/1.5087956.

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                    Kim, B. S. Y., Birkhölzer, Y. A., Feng, X., Hikita, Y., & Hwang, H. Y. Probing the band alignment in rectifying SrIrO3/Nb:SrTiO3 heterostructures.  United States.  https://doi.org/10.1063/1.5087956

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                    Kim, B. S. Y., Birkhölzer, Y. A., Feng, X., Hikita, Y., and Hwang, H. Y. Thu .  
"Probing the band alignment in rectifying SrIrO3/Nb:SrTiO3 heterostructures".  United States.  https://doi.org/10.1063/1.5087956.  https://www.osti.gov/servlets/purl/1528890.

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@article{osti_1528890,

  title        = {Probing the band alignment in rectifying SrIrO3/Nb:SrTiO3 heterostructures},

  author       = {Kim, B. S. Y. and Birkhölzer, Y. A. and Feng, X. and Hikita, Y. and Hwang, H. Y.},

  abstractNote = {Here, we have examined the band alignment in SrIrO3/Nb:SrTiO3 (001) heterojunctions at room temperature using three independent techniques: current–voltage and capacitance–voltage measurements and internal photoemission spectroscopy. We find near-ideal rectifying behavior across the junction, which provides the opportunity to establish the band alignment via Schottky barrier height extractions in the metal-semiconductor junction approximation. The Schottky barrier height deduced from these measurements agrees well with each other within ~14%, with an average value of 1.44 ± 0.11 eV. These results provide a foundation for designing oxide heterostructures to harness the strong spin-orbit coupling and electrochemical properties of strontium iridate.},

  doi          = {10.1063/1.5087956},

  journal      = {Applied Physics Letters},

  number       = 13,

  volume       = 114,

  place        = {United States},

  year         = {2019},

  month        = {4}

}

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Title: Probing the band alignment in rectifying SrIrO3/Nb:SrTiO3 heterostructures

Abstract

Citation Formats

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

Electron Tunneling and Band Structure of SrTi O 3 and KTa O 3 journal, October 1970

Characterization of the Schottky barrier in SrRuO3∕Nb:SrTiO3 junctions journal, April 2007

Preparation of thermally stable TiO2-terminated SrTiO3(100) substrate surfaces journal, July 2004

Electronic transport in doped SrTiO 3 : Conduction mechanisms and potential applications journal, April 2010

Band Alignment and Charge Transfer in Complex Oxide Interfaces journal, March 2017

Ferroelectrically tunable magnetic skyrmions in ultrathin oxide heterostructures journal, November 2018

Thermodynamic guiding principles in selective synthesis of strontium iridate Ruddlesden-Popper epitaxial films journal, March 2016

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

Balanced electron-hole transport in spin-orbit semimetal SrIrO 3 heterostructures journal, February 2018

Spin injection and detection in lanthanum- and niobium-doped SrTiO3 using the Hanle technique journal, July 2013

Atomically engineered epitaxial anatase TiO 2 metal-semiconductor field-effect transistors journal, March 2018

Schottky barrier heights of tantalum oxide, barium strontium titanate, lead titanate, and strontium bismuth tantalate journal, February 1999

Metal insulator transitions in perovskite SrIrO 3 thin films journal, December 2014

A highly active and stable IrO x /SrIrO 3 catalyst for the oxygen evolution reaction journal, September 2016

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Electron doping of cuprates via interfaces with manganites journal, August 2007

The Analysis of Photoelectric Sensitivity Curves for Clean Metals at Various Temperatures journal, July 1931

Recent advances in Schottky barrier concepts journal, November 2001

SrTi O 3 : An intrinsic quantum paraelectric below 4 K journal, April 1979

Charge Transfer in Iridate-Manganite Superlattices journal, March 2017

Emerging magnetism and anomalous Hall effect in iridate–manganite heterostructures journal, September 2016

Understanding and Controlling the Work Function of Perovskite Oxides Using Density Functional Theory journal, May 2016

Relativistic G W +BSE study of the optical properties of Ruddlesden-Popper iridates journal, July 2018

Dimensionality-Driven Metal-Insulator Transition in Spin-Orbit-Coupled SrIrO 3 journal, December 2017

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Fundamental Transition in the Electronic Nature of Solids journal, June 1969

Interface band profiles of Mott-insulator / Nb : SrTiO 3 heterojunctions as investigated by optical spectroscopy journal, November 2010

Title: Probing the band alignment in rectifying SrIrO₃/Nb:SrTiO₃ heterostructures

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

Electron Tunneling and Band Structure of SrTi $O_{3}$ and KTa $O_{3}$
journal, October 1970

Characterization of the Schottky barrier in SrRuO3∕Nb:SrTiO3 junctions
journal, April 2007

Preparation of thermally stable TiO2-terminated SrTiO3(100) substrate surfaces
journal, July 2004

Electronic transport in doped ${SrTiO}_{3}$ : Conduction mechanisms and potential applications
journal, April 2010

Band Alignment and Charge Transfer in Complex Oxide Interfaces
journal, March 2017

Ferroelectrically tunable magnetic skyrmions in ultrathin oxide heterostructures
journal, November 2018

Thermodynamic guiding principles in selective synthesis of strontium iridate Ruddlesden-Popper epitaxial films
journal, March 2016

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

Balanced electron-hole transport in spin-orbit semimetal ${SrIrO}_{3}$ heterostructures
journal, February 2018

Spin injection and detection in lanthanum- and niobium-doped SrTiO3 using the Hanle technique
journal, July 2013

Atomically engineered epitaxial anatase TiO ₂ metal-semiconductor field-effect transistors
journal, March 2018

Schottky barrier heights of tantalum oxide, barium strontium titanate, lead titanate, and strontium bismuth tantalate
journal, February 1999

Metal insulator transitions in perovskite SrIrO ₃ thin films
journal, December 2014

A highly active and stable IrO _x /SrIrO ₃ catalyst for the oxygen evolution reaction
journal, September 2016

The capacitance of degenerate‐semiconductor Schottky barriers at low temperatures
journal, March 1980

Why some interfaces cannot be sharp
journal, January 2006

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

Electron doping of cuprates via interfaces with manganites
journal, August 2007

The Analysis of Photoelectric Sensitivity Curves for Clean Metals at Various Temperatures
journal, July 1931

Recent advances in Schottky barrier concepts
journal, November 2001

SrTi $O_{3}$ : An intrinsic quantum paraelectric below 4 K
journal, April 1979

Charge Transfer in Iridate-Manganite Superlattices
journal, March 2017

Emerging magnetism and anomalous Hall effect in iridate–manganite heterostructures
journal, September 2016

Understanding and Controlling the Work Function of Perovskite Oxides Using Density Functional Theory
journal, May 2016

Relativistic $G W$ +BSE study of the optical properties of Ruddlesden-Popper iridates
journal, July 2018

Dimensionality-Driven Metal-Insulator Transition in Spin-Orbit-Coupled ${SrIrO}_{3}$
journal, December 2017

Resistive switching and its suppression in Pt/Nb:SrTiO3 junctions
journal, June 2014

Spin-Orbit Semimetal ${SrIrO}_{3}$ in the Two-Dimensional Limit
journal, December 2017

Activation of ultrathin SrTiO ₃ with subsurface SrRuO ₃ for the oxygen evolution reaction
journal, January 2018

Bulk electronic structure of SrTiO3: Experiment and theory
journal, December 2001

Interface-driven topological Hall effect in SrRuO ₃ -SrIrO ₃ bilayer
journal, July 2016

Epitaxial growth and thermodynamic stability of SrIrO ₃ /SrTiO ₃ heterostructures
journal, July 2016

Electrical transport across Au/Nb:SrTiO ₃ Schottky interface with different Nb doping
journal, May 2012

Fundamental Transition in the Electronic Nature of Solids
journal, June 1969

Interface band profiles of $Mott-insulator / Nb : {SrTiO}_{3}$ heterojunctions as investigated by optical spectroscopy
journal, November 2010