skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Heterogeneous Two-Phase Pillars in Epitaxial NiFe 2 O 4 -LaFeO 3 Nanocomposites

Abstract

Self-assembled epitaxial oxide nanocomposites have been explored for a wide range of applications, including multiferroic and magnetoelectric properties, plasmonics, and catalysis. These so-called “vertically aligned nanocomposites” form spontaneously during the deposition process when segregation into two phases is energetically favorable as compared to a solid solution. However, there has been surprisingly little work understanding the driving forces that govern the synthesis of these materials, which can include point defect energetics, surface diffusion, and interfacial energies. To explore these factors, La-Ni-Fe-O films have been synthesized by molecular beam epitaxy and it is shown that these phase segregate into spinel-perovskite nanocomposites. Using complementary scanning transmission electron microscopy and atom-probe tomography, the elemental composition of each phase is examined and found that Ni ions are exclusively found in the spinel phase. From correlative analysis, a model for the relative favorability of the Ni2+ and Ni3+ valences under the growth conditions is developed. It is shown that multidimensional characterization techniques provide previously unobserved insight into the growth process and complex driving forces for phase segregation.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]
  1. Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland WA 99352 USA; Department of Physics, Auburn University, Auburn AL 36849 USA
  2. Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland WA 99352 USA
  3. Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland WA 99352 USA
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1378006
Report Number(s):
PNNL-SA-124622
Journal ID: ISSN 2196-7350
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Advanced Materials Interfaces
Additional Journal Information:
Journal Volume: 4; Journal Issue: 16; Journal ID: ISSN 2196-7350
Publisher:
Wiley-VCH
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; oxides; thin films; growth; Atom Probe Tomography; STEM; EDS

Citation Formats

Comes, Ryan B., Perea, Daniel E., and Spurgeon, Steven R. Heterogeneous Two-Phase Pillars in Epitaxial NiFe 2 O 4 -LaFeO 3 Nanocomposites. United States: N. p., 2017. Web. doi:10.1002/admi.201700396.
Comes, Ryan B., Perea, Daniel E., & Spurgeon, Steven R. Heterogeneous Two-Phase Pillars in Epitaxial NiFe 2 O 4 -LaFeO 3 Nanocomposites. United States. doi:10.1002/admi.201700396.
Comes, Ryan B., Perea, Daniel E., and Spurgeon, Steven R. Mon . "Heterogeneous Two-Phase Pillars in Epitaxial NiFe 2 O 4 -LaFeO 3 Nanocomposites". United States. doi:10.1002/admi.201700396.
@article{osti_1378006,
title = {Heterogeneous Two-Phase Pillars in Epitaxial NiFe 2 O 4 -LaFeO 3 Nanocomposites},
author = {Comes, Ryan B. and Perea, Daniel E. and Spurgeon, Steven R.},
abstractNote = {Self-assembled epitaxial oxide nanocomposites have been explored for a wide range of applications, including multiferroic and magnetoelectric properties, plasmonics, and catalysis. These so-called “vertically aligned nanocomposites” form spontaneously during the deposition process when segregation into two phases is energetically favorable as compared to a solid solution. However, there has been surprisingly little work understanding the driving forces that govern the synthesis of these materials, which can include point defect energetics, surface diffusion, and interfacial energies. To explore these factors, La-Ni-Fe-O films have been synthesized by molecular beam epitaxy and it is shown that these phase segregate into spinel-perovskite nanocomposites. Using complementary scanning transmission electron microscopy and atom-probe tomography, the elemental composition of each phase is examined and found that Ni ions are exclusively found in the spinel phase. From correlative analysis, a model for the relative favorability of the Ni2+ and Ni3+ valences under the growth conditions is developed. It is shown that multidimensional characterization techniques provide previously unobserved insight into the growth process and complex driving forces for phase segregation.},
doi = {10.1002/admi.201700396},
journal = {Advanced Materials Interfaces},
issn = {2196-7350},
number = 16,
volume = 4,
place = {United States},
year = {2017},
month = {7}
}

Works referenced in this record:

Epitaxial Photostriction–Magnetostriction Coupled Self-Assembled Nanostructures
journal, July 2012

  • Liu, Heng-Jui; Chen, Long-Yi; He, Qing
  • ACS Nano, Vol. 6, Issue 8
  • DOI: 10.1021/nn301976p

Magnetic anisotropy in composite CoFe 2 O 4 -BiFeO 3 ultrathin films grown by pulsed-electron deposition
journal, April 2012

  • Comes, Ryan; Khokhlov, Mikhail; Liu, Hongxue
  • Journal of Applied Physics, Vol. 111, Issue 7
  • DOI: 10.1063/1.3676413

Self-Assembly of ZnO: From Nanodots to Nanorods
journal, April 2002


Imperfect Oriented Attachment: Dislocation Generation in Defect-Free Nanocrystals
journal, August 1998


A Strain-Driven Morphotropic Phase Boundary in BiFeO3
journal, November 2009

  • Zeches, R. J.; Rossell, M. D.; Zhang, J. X.
  • Science, Vol. 326, Issue 5955, p. 977-980
  • DOI: 10.1126/science.1177046

Static and Dynamic Optical Properties of La 1– x Sr x FeO 3−δ : The Effects of A-Site and Oxygen Stoichiometry
journal, December 2015


Self-Assembled Growth of BiFeO3–CoFe2O4 Nanostructures
journal, October 2006


Reversible redox reactions in an epitaxially stabilized SrCoOx oxygen sponge
journal, August 2013

  • Jeen, Hyoungjeen; Choi, Woo Seok; Biegalski, Michael D.
  • Nature Materials, Vol. 12, Issue 11
  • DOI: 10.1038/nmat3736

Deposition of epitaxial BiFeO 3 /CoFe 2 O 4 nanocomposites on (001) SrTiO 3 by combinatorial pulsed laser deposition
journal, February 2012

  • Aimon, Nicolas M.; Hun Kim, Dong; Kyoon Choi, Hong
  • Applied Physics Letters, Vol. 100, Issue 9
  • DOI: 10.1063/1.3690957

Density functional simulation of the Ba Zr O 3 (011) surface structure
journal, April 2007


Design of magnetoelectric coupling in a self-assembled epitaxial nanocomposite via chemical interaction
journal, January 2014

  • Liang, Wen I.; Liu, Yuangming; Liao, Sheng Chieh
  • J. Mater. Chem. C, Vol. 2, Issue 5
  • DOI: 10.1039/C3TC31987C

Multiferroic BaTiO3-CoFe2O4 Nanostructures
journal, January 2004


Self-assembled growth and magnetic properties of a BiFeO 3 -MgFe 2 O 4 nanocomposite prepared by pulsed laser deposition
journal, May 2013

  • Kim, Dong Hun; Aimon, Nicolas M.; Ross, Caroline A.
  • Journal of Applied Physics, Vol. 113, Issue 17
  • DOI: 10.1063/1.4795327

Piezoelectric response of nanoscale PbTiO3 in composite PbTiO3−CoFe2O4 epitaxial films
journal, August 2008

  • Tan, Zhuopeng; Roytburd, Alexander L.; Levin, Igor
  • Applied Physics Letters, Vol. 93, Issue 7
  • DOI: 10.1063/1.2969038

Structure and interface chemistry of perovskite-spinel nanocomposite thin films
journal, October 2006

  • Zhan, Q.; Yu, R.; Crane, S. P.
  • Applied Physics Letters, Vol. 89, Issue 17
  • DOI: 10.1063/1.2364692

Zinc-blende ZnO and its role in nucleating wurtzite tetrapods and twinned nanowires
journal, April 2007

  • Ding, Yong; Wang, Zhong Lin; Sun, Tianjun
  • Applied Physics Letters, Vol. 90, Issue 15
  • DOI: 10.1063/1.2722671

Trajectory overlaps and local magnification in three-dimensional atom probe
journal, May 2000

  • Vurpillot, F.; Bostel, A.; Blavette, D.
  • Applied Physics Letters, Vol. 76, Issue 21
  • DOI: 10.1063/1.126545

Multiferroic Behavior of Templated BiFeO 3 –CoFe 2 O 4 Self-Assembled Nanocomposites
journal, January 2015

  • Aimon, Nicolas M.; Kim, Dong Hun; Sun, XueYin
  • ACS Applied Materials & Interfaces, Vol. 7, Issue 4
  • DOI: 10.1021/am506089c

Strain-induced isosymmetric phase transition in BiFeO 3
journal, February 2010


Interfacial coupling in heteroepitaxial vertically aligned nanocomposite thin films: From lateral to vertical control
journal, February 2014

  • Zhang, Wenrui; Chen, Aiping; Bi, Zhenxing
  • Current Opinion in Solid State and Materials Science, Vol. 18, Issue 1
  • DOI: 10.1016/j.cossms.2013.07.007

Multiferroics progress and prospects in thin films
journal, January 2007

  • Ramesh, R.; Spaldin, Nicola A.
  • Nature Materials, Vol. 6, Issue 1, p. 21-29
  • DOI: 10.1038/nmat1805

Electrically Assisted Magnetic Recording in Multiferroic Nanostructures
journal, June 2007

  • Zavaliche, F.; Zhao, T.; Zheng, H.
  • Nano Letters, Vol. 7, Issue 6
  • DOI: 10.1021/nl070465o

Stress-induced R M A M C T symmetry changes in BiFeO 3 films
journal, April 2011


Ab initio energetics of La B O 3 ( 001 ) ( B = Mn , Fe, Co, and Ni) for solid oxide fuel cell cathodes
journal, December 2009


Controlling Self-Assembled Perovskite−Spinel Nanostructures
journal, July 2006

  • Zheng, Haimei; Zhan, Qian; Zavaliche, Florin
  • Nano Letters, Vol. 6, Issue 7
  • DOI: 10.1021/nl060401y

Band alignment of epitaxial SrTiO3 thin films with (LaAlO3)0.3-(Sr2AlTaO6)0.7 (001)
journal, September 2015

  • Comes, Ryan B.; Xu, Peng; Jalan, Bharat
  • Applied Physics Letters, Vol. 107, Issue 13
  • DOI: 10.1063/1.4932063

Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures
journal, March 2003