Lattice relaxations around individual dopant atoms in SrTiO3

Salmani-Rezaie, Salva; Kim, Honggyu; Ahadi, Kaveh; Stemmer, Susanne

doi:10.1103/PhysRevMaterials.3.114404

Title: Lattice relaxations around individual dopant atoms in $SrTi O_{3}$

Abstract

The local atomic structure around individual dopant atoms can directly influence the electronic properties of a doped material. Here, we use quantitative scanning transmission electron microscopy to study the local lattice relaxations around Sm dopant atoms in SrTiO₃ thin films. These films have recently been shown to undergo successive ferroelectric and superconducting transitions when strained. We show that neighboring Ti-O columns move away from the columns that contain Sm dopants. The observed displacements are, however, more complex than a simple outward expansion of all four surrounding Ti-O columns. We discuss potential implications, especially for the ferroelectric transition observed in strained films.

Authors:

Salmani-Rezaie, Salva ^[1]; Kim, Honggyu ^[1]; Ahadi, Kaveh ^[1]; Stemmer, Susanne ^[1]

Univ. of California, Santa Barbara, CA (United States)

Publication Date:: Fri Nov 08 00:00:00 EST 2019

Research Org.:: Univ. of California, Santa Barbara, CA (United States); Susanne Stemmer (University of California, Santa Barbara)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF)

OSTI Identifier:: 1594782

Alternate Identifier(s):: OSTI ID: 1593373

Grant/Contract Number:: FG02-02ER45994; 1729489; DMR 1720256

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review Materials

Additional Journal Information:: Journal Volume: 3; Journal Issue: 11; Journal ID: ISSN 2475-9953

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Salmani-Rezaie, Salva, Kim, Honggyu, Ahadi, Kaveh, and Stemmer, Susanne. Lattice relaxations around individual dopant atoms in SrTiO3.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevMaterials.3.114404.

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                    Salmani-Rezaie, Salva, Kim, Honggyu, Ahadi, Kaveh, & Stemmer, Susanne. Lattice relaxations around individual dopant atoms in SrTiO3.  United States.  https://doi.org/10.1103/PhysRevMaterials.3.114404

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                    Salmani-Rezaie, Salva, Kim, Honggyu, Ahadi, Kaveh, and Stemmer, Susanne. Fri .  
"Lattice relaxations around individual dopant atoms in SrTiO3".  United States.  https://doi.org/10.1103/PhysRevMaterials.3.114404.  https://www.osti.gov/servlets/purl/1594782.

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@article{osti_1594782,

  title        = {Lattice relaxations around individual dopant atoms in SrTiO3},

  author       = {Salmani-Rezaie, Salva and Kim, Honggyu and Ahadi, Kaveh and Stemmer, Susanne},

  abstractNote = {The local atomic structure around individual dopant atoms can directly influence the electronic properties of a doped material. Here, we use quantitative scanning transmission electron microscopy to study the local lattice relaxations around Sm dopant atoms in SrTiO3 thin films. These films have recently been shown to undergo successive ferroelectric and superconducting transitions when strained. We show that neighboring Ti-O columns move away from the columns that contain Sm dopants. The observed displacements are, however, more complex than a simple outward expansion of all four surrounding Ti-O columns. We discuss potential implications, especially for the ferroelectric transition observed in strained films.},

  doi          = {10.1103/PhysRevMaterials.3.114404},

  journal      = {Physical Review Materials},

  number       = 11,

  volume       = 3,

  place        = {United States},

  year         = {Fri Nov 08 00:00:00 EST 2019},

  month        = {Fri Nov 08 00:00:00 EST 2019}

}

Copy to clipboard

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Title: Lattice relaxations around individual dopant atoms in SrTi O 3

Abstract

Citation Formats

Three-Dimensional Location of a Single Dopant with Atomic Precision by Aberration-Corrected Scanning Transmission Electron Microscopy journal, March 2014

Carrier density independent scattering rate in SrTiO3-based electron liquids journal, February 2016

Dependence of the Superconducting Transition Temperature on Carrier Concentration in Semiconducting SrTi O 3 journal, March 1965

Ferroelectric enhancement of superconductivity in compressively strained SrTiO 3 films journal, September 2019

Cr5+ in SrTiO3: An example of a static Jahn-Teller effect in A d1 system journal, September 1976

Non-Fermi liquids in oxide heterostructures journal, May 2018

Effects of doping on the lattice parameter of SrTiO 3 journal, June 2012

Tunability of the dielectric response of epitaxially strained SrTi O 3 from first principles journal, January 2005

Advanced Computing in Electron Microscopy book, January 2010

Electric field effects in EPR of the SrTiO 3 :V 4+ Jahn-Teller system journal, December 1991

Enhancing superconductivity in SrTiO 3 films with strain journal, April 2019

Fermi Surface of the Most Dilute Superconductor journal, April 2013

Room-temperature electro-optic properties of strained SrTiO3 films grown on DyScO3 journal, January 2009

Experimental quantification of annular dark-field images in scanning transmission electron microscopy journal, November 2008

Lattice Distorsion around Charged Impurity in Semiconductors journal, August 1964

Response of the Lattice across the Filling-Controlled Mott Metal-Insulator Transition of a Rare Earth Titanate journal, November 2017

Molecular beam epitaxy of SrTiO3 with a growth window journal, July 2009

Enhanced superconductivity close to a non-magnetic quantum critical point in electron-doped strontium titanate journal, February 2019

Probe integrated scattering cross sections in the analysis of atomic resolution HAADF STEM images journal, October 2013

Variable-angle high-angle annular dark-field imaging: application to three-dimensional dopant atom profiling journal, July 2015

A ferroelectric quantum phase transition inside the superconducting dome of Sr1−xCaxTiO3−δ journal, April 2017

Growth of high-quality SrTiO3 films using a hybrid molecular beam epitaxy approach journal, May 2009

Direct observation of charge mediated lattice distortions in complex oxide solid solutions journal, February 2015

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Quantitative Atomic Resolution Scanning Transmission Electron Microscopy journal, May 2008

Three-Dimensional Imaging of Individual Dopant Atoms in SrTiO 3 journal, December 2013

Three-dimensional imaging of individual point defects using selective detection angles in annular dark field scanning transmission electron microscopy journal, January 2017

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Picometer-scale atom position analysis in annular bright-field STEM imaging journal, January 2018

High-angle scattering of fast electrons from crystals containing heavy elements: Simulation and experiment journal, June 2009

Scalable T2 resistivity in a small single-component Fermi surface journal, August 2015

Limitations to the room temperature mobility of two- and three-dimensional electron liquids in SrTiO 3 journal, February 2015

First-principles study of the linear electro-optical response in strained SrTi O 3 journal, November 2018

Direct Observation of Sr Vacancies in SrTiO 3 by Quantitative Scanning Transmission Electron Microscopy journal, December 2016

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Title: Lattice relaxations around individual dopant atoms in $SrTi O_{3}$

Three-Dimensional Location of a Single Dopant with Atomic Precision by Aberration-Corrected Scanning Transmission Electron Microscopy
journal, March 2014

Carrier density independent scattering rate in SrTiO3-based electron liquids
journal, February 2016

Dependence of the Superconducting Transition Temperature on Carrier Concentration in Semiconducting SrTi $O_{3}$
journal, March 1965

Ferroelectric enhancement of superconductivity in compressively strained SrTiO 3 films
journal, September 2019

Cr5+ in SrTiO3: An example of a static Jahn-Teller effect in A d1 system
journal, September 1976

Non-Fermi liquids in oxide heterostructures
journal, May 2018

Effects of doping on the lattice parameter of SrTiO ₃
journal, June 2012

Tunability of the dielectric response of epitaxially strained $SrTi O_{3}$ from first principles
journal, January 2005

Advanced Computing in Electron Microscopy
book, January 2010

Electric field effects in EPR of the SrTiO 3 :V 4+ Jahn-Teller system
journal, December 1991

Enhancing superconductivity in SrTiO 3 films with strain
journal, April 2019

Fermi Surface of the Most Dilute Superconductor
journal, April 2013

Room-temperature electro-optic properties of strained SrTiO3 films grown on DyScO3
journal, January 2009

Experimental quantification of annular dark-field images in scanning transmission electron microscopy
journal, November 2008

Lattice Distorsion around Charged Impurity in Semiconductors
journal, August 1964

Response of the Lattice across the Filling-Controlled Mott Metal-Insulator Transition of a Rare Earth Titanate
journal, November 2017

Molecular beam epitaxy of SrTiO3 with a growth window
journal, July 2009

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Probe integrated scattering cross sections in the analysis of atomic resolution HAADF STEM images
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Variable-angle high-angle annular dark-field imaging: application to three-dimensional dopant atom profiling
journal, July 2015

A ferroelectric quantum phase transition inside the superconducting dome of Sr1−xCaxTiO3−δ
journal, April 2017

Growth of high-quality SrTiO3 films using a hybrid molecular beam epitaxy approach
journal, May 2009

Direct observation of charge mediated lattice distortions in complex oxide solid solutions
journal, February 2015

Lattice expansion and local lattice distortion in Nb- and La-doped SrTi O 3 single crystals investigated by x-ray diffraction and first-principles calculations
journal, October 2018

Metallicity and Superconductivity in Doped Strontium Titanate
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Picometer-scale atom position analysis in annular bright-field STEM imaging
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