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

Title: Magnetic and dielectric property control in the multivalent nanoscale perovskite Eu0.5Ba0.5TiO3

Journal Article · · Nanoscale
DOI:https://doi.org/10.1039/d1nr00588j· OSTI ID:1819575
 [1];  [2];  [3]; ORCiD logo [4];  [2]; ORCiD logo [1]
  1. City Univ. of New York (CUNY), NY (United States). The CUNY Energy Inst.
  2. Columbia Univ., New York, NY (United States)
  3. City Univ. of New York (CUNY), NY (United States). The Graduate Center of the City University of New York
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)

We report nanoscale Eu0.5Ba0.5TiO3, a multiferroic in the bulk and candidate in the search to quantify the electric dipole moment of the electron. Eu0.5Ba0.5TiO3, in the form of nanoparticles and other nanostructures is interesting for nanocomposite integration, biomedical imaging and fundamental research, based upon the prospect of polarizability, f-orbital magnetism and tunable optical/radio luminescence. We developed a [non-hydrolytic]sol–[H2O-activated]gel route, derived from in-house metallic Ba(s)/Eu(s) alkoxide precursors and Ti{(OCH(CH3)2}4. Two distinct nanoscale compounds of Ba:Ti:Eu with the parent perovskite crystal structure were produced, with variable dielectric, magnetic and optical properties, based on altering the oxidizing/reducing conditions. Eu0.5Ba0.5TiO3 prepared under air/O2 atmospheres produced a spherical core–shell nanostructure (30–35 nm), with perovskite Eu0.5Ba0.5TiO3 nanocrystal core-insulating oxide shell layer (~3 nm), presumed a pre-pyrochlore layer abundant with Eu3+. Fluorescence spectroscopy shows a high intensity 5D07F2 transition at 622 nm and strong red fluorescence. The core/shell structure demonstrated excellent capacitive properties: assembly into dielectric thin films gave low conductivity (2133 GΩ mm-1) and an extremely stable, low loss permittivity of εeff ~25 over a wide frequency range (tanδ < 0.01, 100 kHz–2 MHz). Eu0.5Ba0.5TiO3 prepared under H2/argon produced more irregular shaped nanocrystals (20–25) nm, with a thin film permittivity around 4 times greater (εeff 101, tan δ < 0.05, 10 kHz–2 MHz, σ ~59.54 kΩ mm-1). Field-cooled magnetization values of 0.025 emu g-1 for EBTO-Air and 0.84 emu g-1 for EBTO-Argon were observed. X-ray photoelectron spectroscopy analysis reveals a complex interplay of EuII/III/TiIII/IV configurations which contribute to the observed ferroic and fluorescence behavior.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF)
Grant/Contract Number:
AC05-00OR22725; 1461499; 1547830; CNMS2017-211
OSTI ID:
1819575
Alternate ID(s):
OSTI ID: 1782964
Journal Information:
Nanoscale, Vol. 13, Issue 23; ISSN 2040-3364
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (95)

Emergent phenomena at multiferroic heterointerfaces
  • Yu, P.; Chu, Y. H.; Ramesh, R.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 370, Issue 1977 https://doi.org/10.1098/rsta.2012.0199
journal October 2012
Traversing Energy Landscapes Away from Equilibrium: Strategies for Accessing and Utilizing Metastable Phase Space journal July 2018
Narrow band photoluminescence of europium-doped liquid crystals journal September 2002
Surfactant-Free Shape Control of Gold Nanoparticles Enabled by Unified Theoretical Framework of Nanocrystal Synthesis journal April 2017
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Synthesis of BaTiO 3 @TiO 2 -sheet Core-Shell Structured Nanocomposites journal January 2019
Barium titanate perovskite nanoparticles as a photoreactive medium for chemical warfare agent detoxification journal December 2018
Why Are There so Few Magnetic Ferroelectrics? journal July 2000
Multiferroics: Past, present, and future journal May 2017
A multiferroic material to search for the permanent electric dipole moment of the electron journal July 2010
Nanoparticles as multimodal photon transducers of ionizing radiation journal March 2018
Comparison of Methods for Surface Modification of Barium Titanate Nanoparticles for Aqueous Dispersibility: Toward Biomedical Utilization of Perovskite Oxides journal September 2020
Emergent Superstructural Dynamic Order due to Competing Antiferroelectric and Antiferrodistortive Instabilities in Bulk EuTiO 3 journal January 2013
Multiferroic crossover in perovskite oxides journal April 2016
Magnetic and Electric Phase Control in Epitaxial EuTiO 3 from First Principles journal December 2006
STRUCTURAL, MAGNETIC AND DIELECTRIC PROPERTIES OF Fe -DOPED BaTiO 3 SOLIDS journal April 2012
Europium-Based Fluorescence Nanoparticle Sensor for Rapid and Ultrasensitive Detection of an Anthrax Biomarker journal January 2009
Correlation among photoluminescence and the electronic and atomic structures of Sr2SiO4:xEu3+ phosphors: X-ray absorption and emission studies journal July 2020
Manipulating multiple order parameters via oxygen vacancies: The case of E u 0.5 B a 0.5 Ti O 3 δ journal September 2017
Fluorescence properties with red-shift of Eu2+ emission in novel phosphor-silicate apatite Sr3LaNa(PO4)2SiO4 phosphors journal December 2016
Abnormal Reduction, Eu 3+ → Eu 2+ , and Defect Centers in Eu 3+ -Doped Pollucite, CsAlSi 2 O 6 , Prepared in an Oxidizing Atmosphere journal December 2013
Outstanding Photoluminescence in Pr3+-Doped Perovskite Ceramics journal August 2018
Ferroelectric order in individual nanometre-scale crystals journal July 2012
Review of functional titanium oxides. I: TiO2 and its modifications journal September 2016
Inherently Eu 2+ /Eu 3+ Codoped Sc 2 O 3 Nanoparticles as High-Performance Nanothermometers journal February 2018
Dielectric, magnetic and structural properties of novel multiferroic Eu 0.5 Ba 0.5 TiO 3 ceramics journal December 2010
Magnetodielectric effect and optic soft mode behaviour in quantum paraelectric EuTiO 3 ceramics journal September 2007
Monomer Derived Poly(Furfuryl)/BaTiO 3 0–3 Nanocomposite Capacitors: Maximization of the Effective Permittivity Through Control at the Interface journal November 2017
Synthesis of luminescent bioapatite nanoparticles for utilization as a biological probe journal April 2004
Oxygen-Vacancy-Induced Antiferromagnetism to Ferromagnetism Transformation in Eu0.5Ba0.5TiO3−δ Multiferroic Thin Films journal September 2013
Rare earths in barites: distribution and effects on aqueous partitioning journal July 1979
Barium titanate nanocrystals and nanocrystal thin films: Synthesis, ferroelectricity, and dielectric properties journal August 2006
25th Anniversary Article: Colloidal Quantum Dot Materials and Devices: A Quarter-Century of Advances journal September 2013
Soft-x-ray-absorption studies of the location of extra charges induced by substitution in controlled-valence materials journal September 1991
Effects of Eu substituting positions and concentrations on luminescent, dielectric, and magnetic properties of SrTiO3 ceramics journal February 2009
XPS and FTIR Surface Characterization of TiO 2 Particles Used in Polymer Encapsulation journal May 2001
Antiferrodistortive phase transition in EuTiO 3 journal August 2012
Asymmetric leakage in (Ba, Sr)TiO 3 nanoparticle/parylene-C composite capacitors journal August 2012
The `dissolution' of europium and ytterbium in alcohols journal July 1998
Limit on the Electron Electric Dipole Moment Using Paramagnetic Ferroelectric Eu 0.5 Ba 0.5 TiO 3 journal November 2012
Europium incorporated barium titanate thin films for optical applications journal April 2014
Structure–property trends in a hollandite multiferroic by Fe doping: structural, magnetic and dielectric characterization of nanocrystalline BaMn 3−x Fe x Ti 4 O 14+δ journal January 2020
X-ray powder diffraction structural characterization of Ba1-xEuxTiO3 ternary oxides journal July 2005
Role of nonlocal exchange in the electronic structure of correlated oxides journal March 2012
Influence of processing conditions on the grain growth and electrical properties of barium zirconate titanate ferroelectric ceramics journal November 2011
Revisiting the fascinating properties of EuTiO 3 and its mixed crystals with SrTiO 3 : Possible candidates for novel functionalities journal September 2015
Preparation and luminescent properties of Eu-doped BaTiO 3 thin films by sol–gel process journal January 2003
Luminescence properties of different Eu sites in LiMgPO 4 :Eu 2+ , Eu 3+ journal September 2014
Multiferroic and magnetoelectric materials journal August 2006
Field Dependence of Magnetic Disorder in Nanoparticles journal July 2020
Perovskites as Substitutes of Noble Metals for Heterogeneous Catalysis: Dream or Reality journal September 2014
Barium titanate nanoparticles: Short-range lattice distortions with long-range cubic order journal August 2018
Effects of Eu substitution on luminescent and magnetic properties of BaTiO3 nanomaterials journal August 2013
Changes in Electronic Structure upon Lithium Insertion into the A-Site Deficient Perovskite Type Oxides (Li,La)TiO 3 journal March 2005
Metallic and Insulating Oxide Interfaces Controlled by Electronic Correlations journal February 2011
Hollandites as a new class of multiferroics journal August 2014
Coupling between magnetism and dielectric properties in quantum paraelectric EuTiO 3 journal July 2001
The effects of the additive of Eu ions on elastic and electric properties of BaTiO 3 ceramics journal June 2016
Revised Kubelka–Munk theory I Theory and application journal January 2004
Internal Barrier Layer Capacitance Effect in Hexagonal Perovskite Ba 4 YMn 3 O 11.5 Ceramics journal October 2006
Synthesis of Monodisperse Nanoparticles of Barium Titanate:  Toward a Generalized Strategy of Oxide Nanoparticle Synthesis journal December 2001
Prospects for an electron electric-dipole-moment search with ferroelectric (Eu,Ba)TiO 3 ceramics journal February 2010
Multiferroic and Magnetoelectric Oxides: The Emerging Scenario journal August 2012
Nanomaterials for Electronic Packaging: Toward Extreme Miniaturization [Nanopackaging journal December 2010
Nanoscale effects and polaronic relaxation in CaCu 3 Ti 4 O 12 compounds journal January 2011
Pseudo-Jahn–Teller Effect—A Two-State Paradigm in Formation, Deformation, and Transformation of Molecular Systems and Solids journal January 2013
Electron Spin Resonance Investigations and Compensation Mechanism of Europium-Doped Barium Titanate Ceramics journal November 2006
Oxide Semiconductor Thin-Film Transistors: A Review of Recent Advances journal May 2012
Compromising Science by Ignorant Instrument Calibration—Need to Revisit Half a Century of Published XPS Data journal March 2020
Photoelectron spectroscopic study of the valence and core-level electronic structure of BaTiO 3 journal January 1993
Perovskite Catalysts—A Special Issue on Versatile Oxide Catalysts journal August 2014
Understanding the L 2 , 3 x-ray absorption spectra of early 3 d transition elements journal November 2010
The electromechanical behavior of europium doped BaTiO3 journal November 2017
Electromagnetic Mixing Formulas and Applications book January 1999
Final-state effects in the x-ray photoemission spectrum of EuPd 2 P 2 journal May 1985
Europium barium titanate—A magnetic ferroelectric compound journal March 1978
Luminescent Europium(III) Nanoparticles for Sensing and Imaging of Temperature in the Physiological Range journal February 2010
Stoichiometric Control over Ferroic Behavior in Ba(Ti 1– x Fe x )O 3 Nanocrystals journal January 2019
Photoacoustic imaging in the second near-infrared window: a review journal April 2019
Magnetoelectric Composites journal June 2010
Polymer–Nanocrystal Nanocomposites: Device Concepts in Capacitors and Multiferroics journal January 2020
Perovskite ferroelectric nanomaterials journal January 2013
Erratum: Structure and performance of dielectric films based on self-assembled nanocrystals with a high dielectric constant journal November 2013
Searching for new ferroelectrics and multiferroics: A user’s point of view journal November 2015
Apparent giant dielectric constants, dielectric relaxation, and ac-conductivity of hexagonal perovskites La1.2Sr2.7BO7.33 (B=Ru, Ir) journal December 2006
Binding energies of Eu2+ and Eu3+ ions in β-Ca2SiO4 doped with europium journal October 2013
Long-Lived Two-Photon Excited Luminescence of Water-Soluble Europium Complex:  Applications in Biological Imaging Using Two-Photon Scanning Microscopy journal February 2008
Breakdown voltages in ceramic capacitors with cracks journal August 2012
Three-dimensional nanomagnetism journal June 2017
Artificial charge-modulationin atomic-scale perovskite titanate superlattices journal September 2002
Bioactive, luminescent and mesoporous europium-doped hydroxyapatite as a drug carrier journal November 2008
Multiferroics: Different ways to combine magnetism and ferroelectricity journal November 2006
X-ray photoelectron spectroscopy of amorphous and quasiamorphous phases of Ba Ti O 3 and Sr Ti O 3 journal May 2008
Origin of band gaps in 3d perovskite oxides journal April 2019
Electronic structure of early 3 d -transition-metal oxides by analysis of the 2 p core-level photoemission spectra journal January 1996