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Theory and phase-field simulations of electrical control of spin cycloids in a multiferroic

Journal Article · · Physical Review B
 [1];  [2];  [2]
  1. Pennsylvania State Univ., University Park, PA (United States); Penn State University
  2. Pennsylvania State Univ., University Park, PA (United States)

Cycloidal spin orders are common in multiferroics. One of the prototypical examples is BiFeO3 (BFO) which shows a large polarization and a cycloidal antiferromagnetic (AFM) order at room temperature. Here, we employ Landau theory and phase-field simulations to analyze the coupled switching dynamics of polarization and cycloidal AFM orders in BFO. We identify 14 types of transitional spin structures between two cycloids and nine electric-field-induced spin switching paths. We demonstrate the electric-field-induced rotation of wave vectors of the cycloidal spins and discover two types of cycloidal spin switching dynamics: fast local spin flips and slow rotation of wave vectors. Also, we construct roadmaps to achieve the switching between any two spin cycloids through multistep applications of electric fields. Furthermore, this paper provides a theoretical framework for the phenomenological description of spin cycloids and a fundamental understanding of the switching mechanisms to achieve electrical control of magnetic orders.

Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation
Grant/Contract Number:
SC0020145
OSTI ID:
1806285
Alternate ID(s):
OSTI ID: 1806289
OSTI ID: 1880844
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 6 Vol. 103; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (39)

Physics and Applications of Bismuth Ferrite journal June 2009
Multiferroics with Spiral Spin Orders journal December 2009
Crystal structure and spiral magnetic ordering of BiFeO 3 doped with manganese journal December 2002
Applications of semi-implicit Fourier-spectral method to phase field equations journal February 1998
Phase-field microelasticity theory and micromagnetic simulations of domain structures in giant magnetostrictive materials journal May 2005
Nanoscale Control of Domain Architectures in BiFeO 3 Thin Films journal April 2009
Deterministic switching of ferromagnetism at room temperature using an electric field journal December 2014
Real-space imaging of non-collinear antiferromagnetic order with a single-spin magnetometer journal September 2017
Direct evidence for the spin cycloid in strained nanoscale bismuth ferrite thin films journal September 2016
Permanent ferroelectric retention of BiFeO3 mesocrystal journal October 2016
Multiferroics: a magnetic twist for ferroelectricity journal January 2007
Multiferroics progress and prospects in thin films journal January 2007
Ferroelastic switching for nanoscale non-volatile magnetoelectric devices journal February 2010
Crafting the magnonic and spintronic response of BiFeO3 films by epitaxial strain journal April 2013
Deterministic and robust room-temperature exchange coupling in monodomain multiferroic BiFeO3 heterostructures journal November 2017
Electric field control of magnetism using BiFeO 3 -based heterostructures journal June 2014
Multiferroic materials and magnetoelectric physics: symmetry, entanglement, excitation, and topology journal November 2015
Structural distortion and magnetism of BiFeO 3 epitaxial thin films: A Raman spectroscopy and neutron diffraction study journal March 2007
Spiral magnetic ordering in bismuth ferrite journal August 1982
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
Strain Engineering a Multiferroic Monodomain in Thin-Film Bi Fe O 3 journal February 2019
Room-temperature coexistence of large electric polarization and magnetic order in Bi Fe O 3 single crystals journal July 2007
Optical coupling to spin waves in the cycloidal multiferroic Bi Fe O 3 journal January 2008
Domain walls of ferroelectric BaTiO 3 within the Ginzburg-Landau-Devonshire phenomenological model journal April 2010
Orientations of low-energy domain walls in perovskites with oxygen octahedral tilts journal December 2014
Switching the curl of polarization vectors by an irrotational electric field journal September 2016
Strain-induced incommensurate phases in hexagonal manganites journal September 2017
Topological dynamics of vortex-line networks in hexagonal manganites journal January 2018
Electric-Field-Induced Spin Flop in BiFeO 3 Single Crystals at Room Temperature journal June 2008
Phenomenology of Current-Induced Dynamics in Antiferromagnets journal March 2011
BiFeO 3 Domain Wall Energies and Structures: A Combined Experimental and Density Functional Theory + U Study journal June 2013
Ferroelectricity in Spiral Magnets journal February 2006
Magnetic Reversal of the Ferroelectric Polarization in a Multiferroic Spinel Oxide journal May 2006
Electric Control of Spin Helicity in a Magnetic Ferroelectric journal April 2007
Antiferromagnetic spintronics journal February 2018
XSEDE: Accelerating Scientific Discovery journal September 2014
Definition of Magnetic Exchange Length journal August 2013
On the room temperature multiferroic BiFeO3: magnetic, dielectric and thermal properties journal June 2010
The Landau Theory of Phase Transitions book August 1987