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Title: Coexistence and Coupling of Multiple Charge Orderings and Spin States in Hexagonal Ferrite

Journal Article · · Nano Letters

The coupling between charge and spin orderings in strongly correlated systems plays a crucial role in fundamental physics and device applications. As a candidate of multiferroic materials, LuFe2O4 with a nominal Fe2.5+ valence state has the potential for strong charge–spin interactions; however, these interactions have not been fully understood until now. Here, combining complementary characterization methods with theoretical calculations, two types of charge orderings with distinct magnetic properties are revealed. The ground states of LuFe2O4 are decided by the parallel/antiparallel coupling of both charge and spin orderings in the adjacent FeO double layers. Whereas the ferroelectric charge ordering remains ferrimagnetic below 230 K, the antiferroelectric ordering undergoes antiferromagnetic–ferrimagnetic–paramagnetic transitions from 2 K to room temperature. This study demonstrates the unique aspects of strong spin-charge coupling within LuFe2O4. Our results shed light on the coexistence and competing nature of orderings in quantum materials.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; National Natural Science Foundation of China (NSFC); US Department of the Navy, Office of Naval Research (ONR); National Key Research and Development Program of China
Grant/Contract Number:
SC0012704; 52072345; 11804304; 12074071; N00014-20-1-2834; N00014-17-1-2818; d N00014-21-1-2086; 2016YFA0300702
OSTI ID:
1812506
Report Number(s):
BNL-221969-2021-JAAM; TRN: US2213250
Journal Information:
Nano Letters, Vol. 21, Issue 13; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (35)

Ferroelectricity from iron valence ordering in the charge-frustrated system LuFe2O4 journal August 2005
Competing Ferri- and Antiferromagnetic Phases in Geometrically Frustrated LuFe 2 O 4 journal January 2012
Mössbauer study of iron ordering in mixed valence system LuFe2O4 journal December 2007
Formation of Pancakelike Ising Domains and Giant Magnetic Coercivity in Ferrimagnetic LuFe 2 O 4 journal September 2008
Spin imbalance and spin-charge separation in a mesoscopic superconductor journal January 2013
Charge Order, Dynamics, and Magnetostructural Transition in Multiferroic LuFe 2 O 4 journal November 2008
Dynamical Diffraction Calculations of Incommensurate Modulations in Crystals journal August 2019
Charge-Stripe Order in the Electronic Ferroelectric LuFe 2 O 4 journal June 2007
Characterization of JEOL 2100F Lorentz-TEM for low-magnification electron holography and magnetic imaging journal June 2008
Magnetization and Spin Correlation of Two-Dimensional Triangular Antiferromagnet LuFe 2 O 4 journal May 1993
Role of structurally and magnetically modified nanoclusters in colossal magnetoresistance journal December 2011
Interferometric methods for mapping static electric and magnetic fields journal February 2014
Charge order and three-site distortions in the Verwey structure of magnetite journal December 2011
Charge-Lattice Coupling in Hole-Doped LuFe 2 O 4 + δ : The Origin of Second-Order Modulation journal March 2019
Coupling between Spin and Charge Order Driven by Magnetic Field in Triangular Ising System LuFe2O4+δ journal February 2018
Competing antiferromagnetism in a quasi-2D itinerant ferromagnet: Fe 3 GeTe 2 journal November 2016
Charge ordering in transition metal oxides journal August 2006
Interface reconstruction with emerging charge ordering in hexagonal manganite journal May 2018
Oxygen storage capacity and structural flexibility of LuFe2O4+x (0≤x≤0.5) journal November 2013
Investigation of (Fe,Co)NbB-Based Nanocrystalline Soft Magnetic Alloys by Lorentz Microscopy and Off-Axis Electron Holography journal November 2014
Intrinsic electrical properties of LuFe 2 O 4 journal August 2013
Structure factor of modulated crystal structures journal January 1982
Anomalous magnetoresistance due to longitudinal spin fluctuations in a Jeff = 1/2 Mott semiconductor journal November 2019
On the structure and symmetry of incommensurate phases. A practical formulation journal March 1987
Magnetism and cluster glass dynamics in geometrically frustrated LuFe2O4 journal April 2009
Charge Order and the Origin of Giant Magnetocapacitance in LuFe 2 O 4 journal June 2007
Charge Order in LuFe 2 O 4 : An Unlikely Route to Ferroelectricity journal May 2012
Evidence of magnetic phase separation in LuFe 2 O 4 journal July 2012
Electron-optical phase shift of magnetic nanoparticles I. Basic concepts journal January 2003
Origin of the Ising ferrimagnetism and spin-charge coupling in LuFe 2 O 4 journal October 2009
Quantification of Mixed Bloch-Néel Topological Spin Textures Stabilized by the Dzyaloshinskii-Moriya Interaction in Co / Pd Multilayers journal June 2019
A straightforward specimen holder modification for remnant magnetic-field measurement in TEM journal April 2007
Frustrated Magnetism in Mott Insulating ( V 1 x Cr x ) 2 O 3 journal February 2019
Competing two-phase coexistence in doped manganites: Direct observations by in situ Lorentz electron microscopy journal December 2010
A Fourier approach to fields and electron optical phase-shifts calculations journal July 2003