---
_id: '7271'
abstract:
- lang: eng
  text: The recent demand of multifunctional materials and devices for advanced applications
    in energy conversion and data storage resulted into a revival of multiferroics,
    that is, materials characterized by the coexistence of ferromagnetism and ferroelectricity.
    Despite intense efforts made in the past decade, single-phase room temperature
    multiferroics are yet to be discovered/fabricated. Nanostructured ferroic materials
    could potentially exhibit multiferroism since a high fraction of their atoms/ions
    are superficial, thereby altering significantly the properties of the bulk phase.
    Alternately, a magnetic order can be induced into ferroelectric materials upon
    aliovalent doping with magnetic ions. Here, we report on the synthesis of aggregate-free
    single-phase transition-metal-doped BaTiO3 quasi-monodisperse cuboidal nanocrystals
    (NC) which exhibit multiferroic properties at room temperature and can be suitable
    for applications in data storage. The proposed synthetic route allows the inclusion
    of a high concentration of magnetic ions such as Mn+ (M = Cr, Mn, Fe, Co) up to
    a nominal concentration of 4% without the formation of any secondary phase. The
    size of the nanocrystals was controlled in a wide range from ∼15 up to ∼70 nm
    by varying the reaction time from 48 to 144 h. The presence of unpaired electrons
    and their magnetic ordering have been probed by electron paramagnetic resonance
    spectroscopy (EPR), and a vibrating sample magnetometer (VSM). Likewise, an acentric
    structure, associated with the existence of a dielectric polarization, was observed
    by lattice dynamics analysis and piezoresponse force microscopy (PFM). These results
    show that high-quality titanium-containing perovskite nanocrystals which display
    multiferroic properties at room temperature can be fabricated via soft solution-based
    synthetic routes, and the properties of these materials can be modulated by changing
    the size of the nanocrystals and the concentration of the dopant thereby opening
    the door to the design and study of single-phase multiferroic materials.
article_processing_charge: No
article_type: original
author:
- first_name: Tommaso
  full_name: Costanzo, Tommaso
  id: D93824F4-D9BA-11E9-BB12-F207E6697425
  last_name: Costanzo
  orcid: 0000-0001-9732-3815
- first_name: John
  full_name: McCracken, John
  last_name: McCracken
- first_name: Aurelian
  full_name: Rotaru, Aurelian
  last_name: Rotaru
- first_name: Gabriel
  full_name: Caruntu, Gabriel
  last_name: Caruntu
citation:
  ama: Costanzo T, McCracken J, Rotaru A, Caruntu G. Quasi-monodisperse transition-metal-doped
    BaTiO3 (M = Cr, Mn, Fe, Co) colloidal nanocrystals with multiferroic properties.
    <i>ACS Applied Nano Materials</i>. 2018;1(9):4863-4874. doi:<a href="https://doi.org/10.1021/acsanm.8b01036">10.1021/acsanm.8b01036</a>
  apa: Costanzo, T., McCracken, J., Rotaru, A., &#38; Caruntu, G. (2018). Quasi-monodisperse
    transition-metal-doped BaTiO3 (M = Cr, Mn, Fe, Co) colloidal nanocrystals with
    multiferroic properties. <i>ACS Applied Nano Materials</i>. ACS. <a href="https://doi.org/10.1021/acsanm.8b01036">https://doi.org/10.1021/acsanm.8b01036</a>
  chicago: Costanzo, Tommaso, John McCracken, Aurelian Rotaru, and Gabriel Caruntu.
    “Quasi-Monodisperse Transition-Metal-Doped BaTiO3 (M = Cr, Mn, Fe, Co) Colloidal
    Nanocrystals with Multiferroic Properties.” <i>ACS Applied Nano Materials</i>.
    ACS, 2018. <a href="https://doi.org/10.1021/acsanm.8b01036">https://doi.org/10.1021/acsanm.8b01036</a>.
  ieee: T. Costanzo, J. McCracken, A. Rotaru, and G. Caruntu, “Quasi-monodisperse
    transition-metal-doped BaTiO3 (M = Cr, Mn, Fe, Co) colloidal nanocrystals with
    multiferroic properties,” <i>ACS Applied Nano Materials</i>, vol. 1, no. 9. ACS,
    pp. 4863–4874, 2018.
  ista: Costanzo T, McCracken J, Rotaru A, Caruntu G. 2018. Quasi-monodisperse transition-metal-doped
    BaTiO3 (M = Cr, Mn, Fe, Co) colloidal nanocrystals with multiferroic properties.
    ACS Applied Nano Materials. 1(9), 4863–4874.
  mla: Costanzo, Tommaso, et al. “Quasi-Monodisperse Transition-Metal-Doped BaTiO3
    (M = Cr, Mn, Fe, Co) Colloidal Nanocrystals with Multiferroic Properties.” <i>ACS
    Applied Nano Materials</i>, vol. 1, no. 9, ACS, 2018, pp. 4863–74, doi:<a href="https://doi.org/10.1021/acsanm.8b01036">10.1021/acsanm.8b01036</a>.
  short: T. Costanzo, J. McCracken, A. Rotaru, G. Caruntu, ACS Applied Nano Materials
    1 (2018) 4863–4874.
date_created: 2020-01-13T21:58:27Z
date_published: 2018-09-28T00:00:00Z
date_updated: 2023-02-23T13:02:57Z
day: '28'
doi: 10.1021/acsanm.8b01036
extern: '1'
intvolume: '         1'
issue: '9'
language:
- iso: eng
month: '09'
oa_version: None
page: 4863-4874
publication: ACS Applied Nano Materials
publication_identifier:
  issn:
  - 2574-0970
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: Quasi-monodisperse transition-metal-doped BaTiO3 (M = Cr, Mn, Fe, Co) colloidal
  nanocrystals with multiferroic properties
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2018'
...