Experimental observation of magnetoelectricity in spin ice Dy 2 Ti 2 O 7

Lin, L.; Xie, Y. L.; Wen, J-J; Dong, S.; Yan, Z. B.; Liu, J-M

doi:10.1088/1367-2630/17/12/123018

Title: Experimental observation of magnetoelectricity in spin ice Dy ₂ Ti ₂ O ₇

Abstract

The intrinsic noncollinear spin patterns in rare-earth pyrochlore are physically interesting, due to their many emergent properties (e.g., spin-ice and monopole-type excitation). Recent works have suggested that the magnetic monopole excitation of spin-ice systems is magnetoelectric active, but this fact has rarely been confirmed via experiment. In this work, we performed a systematic experimental investigation on the magnetoelectricity of Dy₂Ti₂O₇ by probing the ferroelectricity, spin dynamics, and dielectric behaviors. Two ferroelectric transitions at T_c1 = 25 K and T_c2 =13 K were observed. Remarkable magnetoelectric coupling was identified below the lower transition temperature, with significant suppression of the electric polarization on applied magnetic field. Our results show that the lower ferroelectric transition temperature coincides with the Ising-spin paramagnetic transition point, below which the quasi-particle-like monopoles are populated, which indicates implicit correlation between electric dipoles and spin moments. The possible magnetoelectric mechanisms are discussed. Our findings can be used for more investigations to explore multiferroicity in these spin-ice systems and other frustrated magnets.

Authors:: Lin, L.; Xie, Y. L.; Wen, J-J; Dong, S.; Yan, Z. B.; Liu, J-M

Publication Date:: Tue Dec 01 00:00:00 EST 2015

Research Org.:: Johns Hopkins Univ., Baltimore, MD (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1238983

Alternate Identifier(s):: OSTI ID: 1238984; OSTI ID: 1240129

Grant/Contract Number:: FG02-08ER46544; 1402043B

Resource Type:: Published Article

Journal Name:: New Journal of Physics

Additional Journal Information:: Journal Volume: 17; Journal Issue: 12; Journal ID: ISSN 1367-2630

Publisher:: IOP Publishing

Country of Publication:: United Kingdom

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; multiferroics; spin dynamics; magnetic monopole; spin ice

Citation Formats


                    Lin, L., Xie, Y. L., Wen, J-J, Dong, S., Yan, Z. B., and Liu, J-M. Experimental observation of magnetoelectricity in spin ice Dy 2 Ti 2 O 7.  United Kingdom: N. p., 2015. 
Web.  doi:10.1088/1367-2630/17/12/123018.

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                    Lin, L., Xie, Y. L., Wen, J-J, Dong, S., Yan, Z. B., & Liu, J-M. Experimental observation of magnetoelectricity in spin ice Dy 2 Ti 2 O 7.  United Kingdom.  https://doi.org/10.1088/1367-2630/17/12/123018

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                    Lin, L., Xie, Y. L., Wen, J-J, Dong, S., Yan, Z. B., and Liu, J-M. Tue .  
"Experimental observation of magnetoelectricity in spin ice Dy 2 Ti 2 O 7".  United Kingdom.  https://doi.org/10.1088/1367-2630/17/12/123018.

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@article{osti_1238983,

  title        = {Experimental observation of magnetoelectricity in spin ice Dy 2 Ti 2 O 7},

  author       = {Lin, L. and Xie, Y. L. and Wen, J-J and Dong, S. and Yan, Z. B. and Liu, J-M},

  abstractNote = {The intrinsic noncollinear spin patterns in rare-earth pyrochlore are physically interesting, due to their many emergent properties (e.g., spin-ice and monopole-type excitation). Recent works have suggested that the magnetic monopole excitation of spin-ice systems is magnetoelectric active, but this fact has rarely been confirmed via experiment. In this work, we performed a systematic experimental investigation on the magnetoelectricity of Dy2Ti2O7 by probing the ferroelectricity, spin dynamics, and dielectric behaviors. Two ferroelectric transitions at Tc1 = 25 K and Tc2 =13 K were observed. Remarkable magnetoelectric coupling was identified below the lower transition temperature, with significant suppression of the electric polarization on applied magnetic field. Our results show that the lower ferroelectric transition temperature coincides with the Ising-spin paramagnetic transition point, below which the quasi-particle-like monopoles are populated, which indicates implicit correlation between electric dipoles and spin moments. The possible magnetoelectric mechanisms are discussed. Our findings can be used for more investigations to explore multiferroicity in these spin-ice systems and other frustrated magnets.},

  doi          = {10.1088/1367-2630/17/12/123018},

  journal      = {New Journal of Physics},

  number       = 12,

  volume       = 17,

  place        = {United Kingdom},

  year         = {Tue Dec 01 00:00:00 EST 2015},

  month        = {Tue Dec 01 00:00:00 EST 2015}

}

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Title: Experimental observation of magnetoelectricity in spin ice Dy 2 Ti 2 O 7

Abstract

Citation Formats

Magnetic pyrochlore oxides journal, January 2010

Multiferroics: a magnetic twist for ferroelectricity journal, January 2007

Spiral Magnets as Magnetoelectrics journal, August 2007

Multiferroicity: the coupling between magnetic and polarization orders journal, July 2009

Recent Progress of Multiferroic Perovskite Manganites journal, April 2012

Magnetic control of ferroelectric polarization journal, November 2003

Electric polarization reversal and memory in a multiferroic material induced by magnetic fields journal, May 2004

Magnetic phase diagram and multiferroicity of Ba 3 MnNb 2 O 9 : A spin- 5 2 triangular lattice antiferromagnet with weak easy-axis anisotropy journal, December 2014

Long-range magnetic interactions in the multiferroic antiferromagnet MnWO 4 journal, April 2011

Spin Current and Magnetoelectric Effect in Noncollinear Magnets journal, July 2005

Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites journal, March 2006

Ferroelectricity in an Ising Chain Magnet journal, January 2008

Giant Tunability of Ferroelectric Polarization in GdMn 2 O 5 journal, March 2013

Geometrical Frustration in the Ferromagnetic Pyrochlore Ho 2 Ti 2 O 7 journal, September 1997

Spin Ice State in Frustrated Magnetic Pyrochlore Materials journal, November 2001

Zero-point entropy in ‘spin ice’ journal, May 1999

High pressure route to generate magnetic monopole dimers in spin ice journal, September 2011

Nonmonotonic Zero-Point Entropy in Diluted Spin Ice journal, September 2007

Restoration of the third law in spin ice thin films journal, March 2014

Magnetic monopoles in spin ice journal, January 2008

Measurement of the charge and current of magnetic monopoles in spin ice journal, October 2009

Signature of magnetic monopole and Dirac string dynamics in spin ice journal, March 2009

Dirac Strings and Magnetic Monopoles in the Spin Ice Dy2Ti2O7 journal, September 2009

Creation and measurement of long-lived magnetic monopole currents in spin ice journal, February 2011

Magnetic Coulomb Phase in the Spin Ice Ho2Ti2O7 journal, September 2009

Electric dipoles on magnetic monopoles in spin ice journal, January 2012

A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics journal, January 1958

Anisotropic Superexchange Interaction and Weak Ferromagnetism journal, October 1960

Enhancement of ferroelectricity in Cr-doped Ho2Ti2O7 journal, June 2010

Coexistence of magnetic and ferroelectric behaviors of pyrochlore Ho2Ti2O7 journal, November 2009

Multiferroicity in spin ice Ho 2 Ti 2 O 7 : An investigation on single crystals journal, May 2013

Magnetodielectric response of the spin-ice Dy 2 Ti 2 O 7 journal, October 2005

Magnetocapacitance and spin fluctuations in the geometrically frustrated magnets R 2 Ti 2 O 7 ( R = rare earth ) journal, February 2004

Coupled ferroelectric polarization and magnetization in spinel FeCr2S4 journal, October 2014

Multiferroic properties of CaMn 7 O 12 journal, November 2011

Ferroelectricity in an S = 1 / 2 Chain Cuprate journal, January 2007

Neutron scattering studies of the cooperative paramagnet pyrochlore Tb 2 Ti 2 O 7 journal, November 2001

Chemically modulated multiferroicity in Dy-doped Gd 2 Ti 2 O 7 journal, May 2013

Coherent phonons in pyrochlore titanates A 2 Ti 2 O 7 ( A = Dy, Gd, Tb): A phase transition in Dy 2 Ti 2 O 7 at 110 K journal, April 2011

Temperature-dependent Raman and x-ray studies of the spin-ice pyrochlore Dy 2 Ti 2 O 7 and nonmagnetic pyrochlore Lu 2 Ti 2 O 7 journal, December 2008

Brownian motion and quantum dynamics of magnetic monopoles in spin ice journal, February 2013

Quantum-Classical Reentrant Relaxation Crossover in D y 2 T i 2 O 7 Spin Ice journal, September 2003

How ‘spin ice’ freezes journal, September 2001

Novel dynamical magnetic properties in the spin ice compound Dy 2 Ti 2 O 7 journal, July 2001

Quantum and thermal spin relaxation in the diluted spin ice Dy 2 − x M x Ti 2 O 7 ( M = Lu , Y ) journal, November 2004

Emergent order in the spin-frustrated system Dy x Tb 2 − x Ti 2 O 7 studied by ac susceptibility measurements journal, April 2010

The “Coulomb Phase” in Frustrated Systems journal, August 2010

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Title: Experimental observation of magnetoelectricity in spin ice Dy ₂ Ti ₂ O ₇

Magnetic pyrochlore oxides
journal, January 2010

Multiferroics: a magnetic twist for ferroelectricity
journal, January 2007

Spiral Magnets as Magnetoelectrics
journal, August 2007

Multiferroicity: the coupling between magnetic and polarization orders
journal, July 2009

Recent Progress of Multiferroic Perovskite Manganites
journal, April 2012

Magnetic control of ferroelectric polarization
journal, November 2003

Electric polarization reversal and memory in a multiferroic material induced by magnetic fields
journal, May 2004

Magnetic phase diagram and multiferroicity of ${Ba}_{3} {MnNb}_{2} O_{9}$ : A spin- $\frac{5}{2}$ triangular lattice antiferromagnet with weak easy-axis anisotropy
journal, December 2014

Long-range magnetic interactions in the multiferroic antiferromagnet MnWO $_{4}$
journal, April 2011

Spin Current and Magnetoelectric Effect in Noncollinear Magnets
journal, July 2005

Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites
journal, March 2006

Ferroelectricity in an Ising Chain Magnet
journal, January 2008

Giant Tunability of Ferroelectric Polarization in ${GdMn}_{2} O_{5}$
journal, March 2013

Geometrical Frustration in the Ferromagnetic Pyrochlore ${Ho}_{2} {Ti}_{2} O_{7}$
journal, September 1997

Spin Ice State in Frustrated Magnetic Pyrochlore Materials
journal, November 2001

Zero-point entropy in ‘spin ice’
journal, May 1999

High pressure route to generate magnetic monopole dimers in spin ice
journal, September 2011

Nonmonotonic Zero-Point Entropy in Diluted Spin Ice
journal, September 2007

Restoration of the third law in spin ice thin films
journal, March 2014

Magnetic monopoles in spin ice
journal, January 2008

Measurement of the charge and current of magnetic monopoles in spin ice
journal, October 2009

Signature of magnetic monopole and Dirac string dynamics in spin ice
journal, March 2009

Dirac Strings and Magnetic Monopoles in the Spin Ice Dy2Ti2O7
journal, September 2009

Creation and measurement of long-lived magnetic monopole currents in spin ice
journal, February 2011

Magnetic Coulomb Phase in the Spin Ice Ho2Ti2O7
journal, September 2009

Electric dipoles on magnetic monopoles in spin ice
journal, January 2012

A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics
journal, January 1958

Anisotropic Superexchange Interaction and Weak Ferromagnetism
journal, October 1960

Enhancement of ferroelectricity in Cr-doped Ho2Ti2O7
journal, June 2010

Coexistence of magnetic and ferroelectric behaviors of pyrochlore Ho2Ti2O7
journal, November 2009

Multiferroicity in spin ice Ho ₂ Ti ₂ O ₇ : An investigation on single crystals
journal, May 2013

Magnetodielectric response of the spin-ice ${Dy}_{2} {Ti}_{2} O_{7}$
journal, October 2005

Magnetocapacitance and spin fluctuations in the geometrically frustrated magnets $R_{2} {Ti}_{2} O_{7}$ $(R = rare earth)$
journal, February 2004

Coupled ferroelectric polarization and magnetization in spinel FeCr2S4
journal, October 2014

Multiferroic properties of CaMn $_{7}$ O $_{12}$
journal, November 2011

Ferroelectricity in an $S = 1 / 2$ Chain Cuprate
journal, January 2007

Neutron scattering studies of the cooperative paramagnet pyrochlore ${Tb}_{2} {Ti}_{2} O_{7}$
journal, November 2001

Chemically modulated multiferroicity in Dy-doped Gd ₂ Ti ₂ O ₇
journal, May 2013

Coherent phonons in pyrochlore titanates $A_{2}$ ${Ti}_{2}$ O $_{7}$ ( $A =$ Dy, Gd, Tb): A phase transition in Dy $_{2}$ Ti $_{2}$ O $_{7}$ at 110 K
journal, April 2011

Temperature-dependent Raman and x-ray studies of the spin-ice pyrochlore ${Dy}_{2} {Ti}_{2} O_{7}$ and nonmagnetic pyrochlore ${Lu}_{2} {Ti}_{2} O_{7}$
journal, December 2008

Brownian motion and quantum dynamics of magnetic monopoles in spin ice
journal, February 2013

Quantum-Classical Reentrant Relaxation Crossover in ${D y}_{2} {T i}_{2} O_{7}$ Spin Ice
journal, September 2003

How ‘spin ice’ freezes
journal, September 2001

Novel dynamical magnetic properties in the spin ice compound Dy ₂ Ti ₂ O ₇
journal, July 2001

Quantum and thermal spin relaxation in the diluted spin ice ${Dy}_{2 - x} M_{x} {Ti}_{2} O_{7}$ $(M = Lu, Y)$
journal, November 2004

Emergent order in the spin-frustrated system ${Dy}_{x} {Tb}_{2 - x} {Ti}_{2} O_{7}$ studied by ac susceptibility measurements
journal, April 2010

The “Coulomb Phase” in Frustrated Systems
journal, August 2010

Ferroelectricity Induced by Proper-Screw Type Magnetic Order
journal, July 2007