Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

BaFe4O7 and K0.22Ba0.89Fe4O7: Canted Antiferromagnetic Diferrites with Exceptionally High Magnetic Ordering Temperatures [BaFe4O7 and K0.22Ba0.89Fe4O7– New Canted Antiferromagnetic Diferrites with Exceptionally High Magnetic Ordering Temperatures]

Journal Article · · Chemistry of Materials
Here, complex iron containing oxides, typically referred to as ferrites, have been extensively studied for their electronic and magnetic properties, including magnetotransport, ferromagnetism, ferroelectricity, and a combination of the latter two, known as multiferroism. The search for materials possessing simultaneous ferromagnetic and ferroelectric behavior is of significant interest both for the advancement of fundamental science and for applications in random access memory (RAM). Despite the great technological potential of multiferroics, one or both of the ferroic ordering temperatures tend to fall below room temperature, such as in the compositions TbMnO3 and Ni3V2O8, thus eliminating their practical utility for RAM applications. The scarcity of multiferroics possessing room temperature ferroic orderings continues to drive exploratory research in this field. For this reason, ferrites have garnered significant interest due to their often high ferroic ordering temperatures, for example in BiFeO3. Among all ferrites, hexaferrites are the most studied prototypical examples and constitute a specific subclass of ferrites that follows the stoichiometry BaO–nFe2O3, in which the n value dictates the nomenclature, i.e., (n = 6) is a hexaferrite or (n = 1) is a monoferrite. This versatile class of materials encompasses a wide range of related structures best described by Pullar, serving as the motivation for this work.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS) (SC-27)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1485320
Journal Information:
Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 7 Vol. 29; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (25)

Physics and Applications of Bismuth Ferrite journal June 2009
Multiferroics with Spiral Spin Orders journal December 2009
Materials Discovery by Flux Crystal Growth: Quaternary and Higher Order Oxides journal January 2012
BaFeO3: A Ferromagnetic Iron Oxide journal November 2011
Hydrothermal synthesis, structure and magnetic properties of barium diferrite journal June 1975
A new protocol for the determination of magnetic structures using simulated annealing and representational analysis (SARAh) journal March 2000
Growth, structural and magnetic characterization of Co- and Ni-substituted barium hexaferrite single crystals journal April 2015
Multiferroics: Different ways to combine magnetism and ferroelectricity journal November 2006
Improved magnetic properties of Cr3+ doped SrFe12O19 synthesized via microwave hydrothermal route journal March 2015
Hexagonal ferrites: A review of the synthesis, properties and applications of hexaferrite ceramics journal September 2012
Ferroelectricity Induced by Cations of Nonequivalent Spins Disordered in the Weakly Ferromagnetic Perovskites,YCr 1– x M x O 3 (M = Fe or Mn) journal September 2012
Crystal Growth of New Hexahydroxometallates Using a Hydroflux journal September 2013
Structural Transition at 360 K in the CaFe 5 O 7 Ferrite: Toward a New Charge Ordering Distribution journal September 2014
Magnetic control of ferroelectric polarization journal November 2003
Electric polarization reversal and memory in a multiferroic material induced by magnetic fields journal May 2004
Multiferroic and magnetoelectric materials journal August 2006
Multiferroics: a magnetic twist for ferroelectricity journal January 2007
Towards a magnetoelectric memory journal June 2008
Ferromagnetism in CuFeSb: Evidence of competing magnetic interactions in iron-based superconductors journal April 2012
First-principles study of exchange interactions of yttrium iron garnet journal January 2017
Electric Polarization Rotation in a Hexaferrite with Long-Wavelength Magnetic Structures journal April 2005
Magnetically Driven Ferroelectric Order in Ni 3 V 2 O 8 journal August 2005
The crystal structure of barium diferrite journal April 1973
MATERIALS SCIENCE: Multiferroics as Quantum Electromagnets journal June 2006
Magnetic Properties of Nano-Crystalline Barium Ferrite Synthesized by Different Synthesis Route journal November 2010

Cited By (3)

Neutron Instruments for Research in Coordination Chemistry: Neutron Instruments for Research in Coordination Chemistry journal January 2019
Oxo-Hydroxoferrate K 2− x Fe 4 O 7− x (OH) x : Hydroflux Synthesis, Chemical and Thermal Instability, Crystal and Magnetic Structures journal January 2019
A suite-level review of the neutron powder diffraction instruments at Oak Ridge National Laboratory journal September 2018


Figures / Tables (8)


Similar Records

Spin reorientation transition and near room-temperature multiferroic properties in a W-type hexaferrite SrZn{sub 1.15}Co{sub 0.85}Fe{sub 16}O{sub 27}
Journal Article · Thu Mar 06 23:00:00 EST 2014 · Journal of Applied Physics · OSTI ID:22277950

Multiferroicity in atomic van der Waals heterostructures
Journal Article · Thu Jun 13 20:00:00 EDT 2019 · Nature Communications · OSTI ID:1559228

Optimization of excess Bi doping to enhance ferroic orders of spin casted BiFeO{sub 3} thin film
Journal Article · Sat Jun 21 00:00:00 EDT 2014 · Journal of Applied Physics · OSTI ID:22304020