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Large spin-driven dielectric response and magnetoelectric coupling in the buckled honeycomb $$Fe_4Nb_2O_9$$

Journal Article · · Physical Review Materials
 [1];  [2];  [2];  [3];  [1];  [4];  [1];  [3];  [5];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division
  2. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
  3. Chongqing Univ. (China). Low Temperature Physics Lab.
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy; Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
Here, we present the significant spin-driven dielectric anomaly (~40% drop) and magnetoelectric coupling near the magnetic ordering temperature in single crystal $$Fe_4Nb_2O_9$$ . By combining neutron and x-ray single crystal diffraction techniques, we unambiguously determined its magnetic symmetry and studied the structural phase transition at $$T_S$$ = 70 K. The temperature-dependent static dielectric constant is strongly anisotropic, rendering two dielectric anomalies along the $$a$$ axis in the hexagonal lattice with the first one coupled to the magnetic ordering around $$T_N$$ = 97 K and the second one accompanying with a first-order structural transition around $$T_S$$ = 70 K. Below $$T_N$$, we found that the anomalous dielectric constant is practically proportional to the square of the magnetic moment from neutron diffraction data, indicating that the exchange striction is likely responsible for the strong spin-lattice coupling. Magnetic-field-induced magnetoelectric coupling was observed and is compatible with the determined magnetic structure that is characteristic of antiferromagnetically arranged ferromagnetic chains in the honeycomb plane. We propose that such magnetic symmetry should be immune to external magnetic fields to some extent favored by the freedom of rotation of moments in the honeycomb plane, laying out a promising system to control the magnetoelectric properties by magnetic fields.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Sponsoring Organization:
Fundamental Research Funds for the Central Universities; National Science Foundation (NSF); Projects of President Foundation of Chongqing University; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; SC0020254
OSTI ID:
1649160
Alternate ID(s):
OSTI ID: 1658370
Journal Information:
Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 8 Vol. 4; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (44)

Etude de niobates et tantalates de metaux de transition bivalents journal December 1961
A new family of magnetoelectric materials: A2M4O9(A  Ta, Nb; M  Mn, Co) journal June 1972
Recent advances in magnetic structure determination by neutron powder diffraction journal October 1993
Multiferroic and magnetoelectric materials journal August 2006
Multiferroics: a magnetic twist for ferroelectricity journal January 2007
Large magnetoelectric coupling in Co4Nb2O9 journal January 2014
Anomalous changes in the dielectric constants of MnF 2 near its Néel temperature journal March 1984
Magnetic-field-induced dielectric anomaly and electric polarization in Mn 4 Nb 2 O 9 journal May 2015
Magnetodielectric and magnetoelastic coupling in Co 4 Nb 2 O 9 below Néel temperature journal April 2016
Experiments on simple magnetic model systems journal January 1974
Multi-ferroic magnetoelectrics journal January 1994
Revival of the magnetoelectric effect journal April 2005
Multiferroics of spin origin journal July 2014
Universal window for two-dimensional critical exponents journal June 2008
Some symmetry aspects of ferroics and single phase multiferroics * journal October 2008
The toroidal moment in condensed-matter physics and its relation to the magnetoelectric effect journal October 2008
Magnetization and universal sub-critical behaviour in two-dimensional XY magnets journal January 1993
Magnetism in and journal December 1996
Antiferromagnetism in a Cr 2 O 3 Crystal journal May 1956
Low-temperature crystal and magnetic structures of the magnetoelectric material F e 4 N b 2 O 9 journal September 2019
Mechanisms of dielectric anomalies in BaMn F 4 journal September 1977
Dielectric anomaly in MnO near the magnetic phase transition journal November 1981
Coupling between the ferroelectric and antiferromagnetic orders in YMnO 3 journal August 1997
Coupling between magnetism and dielectric properties in quantum paraelectric EuTiO 3 journal July 2001
Dielectric and magnetic anomalies and spin frustration in hexagonal R MnO 3 ( R = Y , Yb, and Lu) journal August 2001
Large off-diagonal magnetoelectric coupling in the quantum paraelectric antiferromagnet EuTiO 3 journal February 2010
Magnetodielectric and magnetoelastic coupling in TbFe 3 ( BO 3 ) 4 journal August 2010
Magnetoelectric coupling in MnTiO 3 journal March 2011
Magnetoelectric effect in NdCrTiO 5 journal January 2012
Magnetoelectric hysteresis loops in Cr 2 O 3 at room temperature journal May 2013
One-dimensional short-range magnetic correlations in the magnetoelectric pyroxene CaMnGe 2 O 6 journal February 2016
Magnetoelectric coupling in the honeycomb antiferromagnet Co 4 Nb 2 O 9 journal February 2016
Manipulation of electric polarization with rotating magnetic field in a honeycomb antiferromagnet Co 4 Nb 2 O 9 journal September 2017
Spin dynamics and magnetoelectric coupling mechanism of C o 4 N b 2 O 9 journal February 2018
Fe 4 Nb 2 O 9 : A magnetoelectric antiferromagnet journal April 2018
Metamagnetic transitions and magnetoelectric coupling in acentric and nonpolar Pb 2 Mn O 4 journal May 2019
Universal Exchange-Driven Phonon Splitting in Antiferromagnets journal April 2012
Second Harmonic Generation and Magnetic-Dipole-Electric-Dipole Interference in Antiferromagnetic Cr 2 O 3 journal October 1994
Magnetic Structure of MnO at 10 K from Total Neutron Scattering Data journal February 2006
Four-circle single-crystal neutron diffractometer at the High Flux Isotope Reactor journal May 2011
Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures journal March 2003
MATERIALS SCIENCE: The Renaissance of Magnetoelectric Multiferroics journal July 2005
A short review of the magnetoelectric effect and related experimental techniques on single phase (multi-) ferroics journal October 2009
Symmetry-Based Computational Tools for Magnetic Crystallography journal July 2015