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Title: XMCD study of magnetism and valence state in iron-substituted strontium titanate

Abstract

Room-temperature ferromagnetism was characterized for thin films of SrTi 0.6Fe 0.4O 3–δ grown by pulsed laser deposition on SrTiO 3 and Si substrates under different oxygen pressures and after annealing under oxygen and vacuum conditions. X-ray magnetic circular dichroism demonstrated that the magnetization originated from Fe 2+ cations, whereas Fe 3+ and Ti 4+ did not contribute. Films with the highest magnetic moment (0.8 μ B per Fe) had the highest measured Fe 2+:Fe 3+ ratio of 0.1 corresponding to the largest concentration of oxygen vacancies (δ = 0.19). Postgrowth annealing treatments under oxidizing and reducing conditions demonstrated quenching and partial recovery of magnetism respectively, and a change in Fe valence states. In conclusion, the study elucidates the microscopic origin of magnetism in highly Fe-substituted SrTi 1–xFe xO 3–δ perovskite oxides and demonstrates that the magnetic moment, which correlates with the relative content of Fe 2+ and Fe 3+, can be controlled via the oxygen content, either during growth or by postgrowth annealing.

Authors:
 [1];  [1];  [2];  [1];  [1];  [3];  [1];  [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Fudan Univ., Shanghai (China)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
Swiss National Science Foundation (SNSF); China Scholarship Council; National Science Foundation (NSF); USDOE
OSTI Identifier:
1558291
Alternate Identifier(s):
OSTI ID: 1513313
Grant/Contract Number:  
[AC02-06CH11357]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Materials
Additional Journal Information:
[ Journal Volume: 3; Journal Issue: 5]; Journal ID: ISSN 2475-9953
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; XMCD; oxygen vacancies; perovskite oxide; pulsed laser deposition; room temperature ferromagnetism

Citation Formats

Tang, Astera S., Pelliciari, Jonathan, Song, Qi, Song, Qian, Ning, Shuai, Freeland, John W., Comin, Riccardo, and Ross, Caroline A. XMCD study of magnetism and valence state in iron-substituted strontium titanate. United States: N. p., 2019. Web. doi:10.1103/PhysRevMaterials.3.054408.
Tang, Astera S., Pelliciari, Jonathan, Song, Qi, Song, Qian, Ning, Shuai, Freeland, John W., Comin, Riccardo, & Ross, Caroline A. XMCD study of magnetism and valence state in iron-substituted strontium titanate. United States. doi:10.1103/PhysRevMaterials.3.054408.
Tang, Astera S., Pelliciari, Jonathan, Song, Qi, Song, Qian, Ning, Shuai, Freeland, John W., Comin, Riccardo, and Ross, Caroline A. Fri . "XMCD study of magnetism and valence state in iron-substituted strontium titanate". United States. doi:10.1103/PhysRevMaterials.3.054408.
@article{osti_1558291,
title = {XMCD study of magnetism and valence state in iron-substituted strontium titanate},
author = {Tang, Astera S. and Pelliciari, Jonathan and Song, Qi and Song, Qian and Ning, Shuai and Freeland, John W. and Comin, Riccardo and Ross, Caroline A.},
abstractNote = {Room-temperature ferromagnetism was characterized for thin films of SrTi0.6Fe0.4O3–δ grown by pulsed laser deposition on SrTiO3 and Si substrates under different oxygen pressures and after annealing under oxygen and vacuum conditions. X-ray magnetic circular dichroism demonstrated that the magnetization originated from Fe2+ cations, whereas Fe3+ and Ti4+ did not contribute. Films with the highest magnetic moment (0.8μB per Fe) had the highest measured Fe2+:Fe3+ ratio of 0.1 corresponding to the largest concentration of oxygen vacancies (δ = 0.19). Postgrowth annealing treatments under oxidizing and reducing conditions demonstrated quenching and partial recovery of magnetism respectively, and a change in Fe valence states. In conclusion, the study elucidates the microscopic origin of magnetism in highly Fe-substituted SrTi1–xFexO3–δ perovskite oxides and demonstrates that the magnetic moment, which correlates with the relative content of Fe2+ and Fe3+, can be controlled via the oxygen content, either during growth or by postgrowth annealing.},
doi = {10.1103/PhysRevMaterials.3.054408},
journal = {Physical Review Materials},
number = [5],
volume = [3],
place = {United States},
year = {2019},
month = {5}
}

Journal Article:
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Works referenced in this record:

Magnetostriction in epitaxial SrTi 1− x Fe x O 3−δ perovskite films with x = 0.13 and 0.35
journal, November 2012


Development of a slotless tubular linear interior permanent magnet micromotor for robotic applications
journal, October 2005


XMCD studies on Co and Li doped ZnO magnetic semiconductors
journal, May 2008


Multiplet effects in X-ray spectroscopy
journal, January 2005


Strongly coupled thermal and chemical expansion in the perovskite oxide system Sr(Ti,Fe)O 3−α
journal, January 2015

  • Perry, Nicola H.; Kim, Jae Jin; Bishop, Sean R.
  • Journal of Materials Chemistry A, Vol. 3, Issue 7
  • DOI: 10.1039/C4TA05247A

Cathodic and defect properties of BaxSr1−xTi1−yFeyO3−y/2+δ mixed conducting oxides
journal, January 2013


Oxides, Oxides, and More Oxides: High-κ Oxides, Ferroelectrics, Ferromagnetics, and Multiferroics
journal, November 2009

  • Izyumskaya, N.; Alivov, Ya.; Morkoç, H.
  • Critical Reviews in Solid State and Materials Sciences, Vol. 34, Issue 3-4
  • DOI: 10.1080/10408430903368401

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


Rare-earth nickelates R NiO 3 : thin films and heterostructures
journal, February 2018


Large magnetic polarization of Ti4+ ions in FeTiO3
journal, March 2007

  • Fujii, T.; Yamashita, M.; Fujimori, S.
  • Journal of Magnetism and Magnetic Materials, Vol. 310, Issue 2
  • DOI: 10.1016/j.jmmm.2006.10.469

Electronic structure of epitaxial Fe-doped SrTiO 3 thin films
journal, May 2011


Thin-film ferroelectric materials and their applications
journal, November 2016


Vacancy induced magnetism in SrTiO3
journal, May 2012

  • Zhang, Yongjia; Hu, Jifan; Cao, Ensi
  • Journal of Magnetism and Magnetic Materials, Vol. 324, Issue 10
  • DOI: 10.1016/j.jmmm.2011.12.036

Progress in perovskite nickelate research
journal, July 2008


Interface Physics in Complex Oxide Heterostructures
journal, March 2011


Oxygen Vacancy-Tuned Physical Properties in Perovskite Thin Films with Multiple B-site Valance States
journal, April 2017

  • Enriquez, Erik; Chen, Aiping; Harrell, Zach
  • Scientific Reports, Vol. 7, Issue 1
  • DOI: 10.1038/srep46184

The single-phase multiferroic oxides: from bulk to thin film
journal, July 2005


X-ray magnetic circular dichroism—A versatile tool to study magnetism
journal, October 2014


Magnetic and magneto-optical properties of Fe-doped SrTiO3 films
journal, September 2008

  • Kim, Hyun-Suk; Bi, Lei; Dionne, G. F.
  • Applied Physics Letters, Vol. 93, Issue 9
  • DOI: 10.1063/1.2977963

The Effect of A-Site Substitution of Ce and La on the Magnetic and Electronic Properties of Sr(Ti 0.6 Fe 0.4 )O 3−δ Films
journal, November 2012

  • Jiang, Peng; Bi, Lei; Sun, Xueyin
  • Inorganic Chemistry, Vol. 51, Issue 24
  • DOI: 10.1021/ic301726w

Enhancement of the magneto-optical performance of Sr(Ti0.6−xGaxFe0.4)O3 perovskite films by Ga substitution
journal, June 2011

  • Jiang, Peng; Bi, Lei; Kim, Dong Hun
  • Applied Physics Letters, Vol. 98, Issue 23
  • DOI: 10.1063/1.3595337

Superconductivity in Single-Crystalline S r 1- x L a x T i O 3
journal, June 1996

  • Suzuki, Hiroshi; Bando, Hiroshi; Ootuka, Youiti
  • Journal of the Physical Society of Japan, Vol. 65, Issue 6
  • DOI: 10.1143/JPSJ.65.1529

Origin of magnetism in La and Fe doped SrTiO3−δ films
journal, December 2010

  • Egilmez, M.; Leung, G. W.; Hakimi, A. M. H. R.
  • Journal of Applied Physics, Vol. 108, Issue 12
  • DOI: 10.1063/1.3525707

Emergent phenomena at oxide interfaces
journal, January 2012

  • Hwang, H. Y.; Iwasa, Y.; Kawasaki, M.
  • Nature Materials, Vol. 11, Issue 2
  • DOI: 10.1038/nmat3223

Perovskite oxides – a review on a versatile material class for solar-to-fuel conversion processes
journal, January 2017

  • Kubicek, Markus; Bork, Alexander H.; Rupp, Jennifer L. M.
  • Journal of Materials Chemistry A, Vol. 5, Issue 24
  • DOI: 10.1039/C7TA00987A

First-principles insights on the magnetism of cubic SrTi 1 x Co x O 3 δ
journal, June 2012

  • Florez, J. M.; Ong, S. P.; Onbaşli, M. C.
  • Applied Physics Letters, Vol. 100, Issue 25
  • DOI: 10.1063/1.4729830

Detection of Fe2+ valence states in Fe doped SrTiO3 epitaxial thin films grown by pulsed laser deposition
journal, January 2013

  • Koehl, Annemarie; Kajewski, Dariusz; Kubacki, Jerzy
  • Physical Chemistry Chemical Physics, Vol. 15, Issue 21
  • DOI: 10.1039/c3cp50272d

Magnetoelastic effects in SrTi 1 x M x O 3 (M = Fe, Co, or Cr) epitaxial thin films
journal, July 2011


Superexchange interaction and symmetry properties of electron orbitals
journal, July 1959


Defect Chemistry of Donor-Doped and Undoped Strontium Titanate Ceramics between 1000° and 1400°C
journal, October 1997


Laser annealing induced ferromagnetism in SrTiO 3 single crystal
journal, July 2014

  • Rao, S. S.; Lee, Y. F.; Prater, J. T.
  • Applied Physics Letters, Vol. 105, Issue 4
  • DOI: 10.1063/1.4891184

Magnetism and Faraday Rotation in Oxygen-Deficient Polycrystalline and Single-Crystal Iron-Substituted Strontium Titanate
journal, February 2017


Structure, magnetic properties and magnetoelastic anisotropy in epitaxial Sr(Ti 1− x Co x )O 3 films
journal, April 2010


X-ray magnetic circular dichroism—a high energy probe of magnetic properties
journal, January 2005

  • Funk, Tobias; Deb, Aniruddha; George, Simon J.
  • Coordination Chemistry Reviews, Vol. 249, Issue 1-2
  • DOI: 10.1016/j.ccr.2004.05.017

Ferromagnetism in Co-doped (La,Sr)TiO 3
journal, July 2009


Theory of the Role of Covalence in the Perovskite-Type Manganites [ La ,   M ( II ) ] Mn O 3
journal, October 1955


Electronic Structure, Defect Chemistry, and Transport Properties of SrTi 1 - x Fe x O 3 - y Solid Solutions
journal, August 2006

  • Rothschild, Avner; Menesklou, Wolfgang; Tuller, Harry L.
  • Chemistry of Materials, Vol. 18, Issue 16
  • DOI: 10.1021/cm052803x