Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses

Bowlan, Pamela Renee; Trugman, Stuart Alan; Wang, X.; Dai, Yaomin; Cheong, S.-W.; Bauer, Eric Dietzgen; Taylor, Antoinette Jane; Yarotski, Dmitry Anatolievitch; Prasankumar, Rohit Prativadi

doi:10.1103/PhysRevB.94.184429

Title: Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses

Abstract

We investigate spin dynamics in the antiferromagnetic (AFM) multiferroic TbMnO3 using opticalpump, terahertz (THz)-probe spectroscopy. Photoexcitation results in a broadband THz transmission change, with an onset time of 25 ps at 6 K that becomes faster at higher temperatures. We attribute this time constant to spin-lattice thermalization. The excellent agreement between our measurements and previous ultrafast resonant x-ray diffraction measurements on the same material confirms that our THz pulse directly probes spin order. We suggest that this could be the case in general for insulating AFM materials, if the origin of the static absorption in the THz spectral range is magnetic.

Authors:

^[1];

^[1]; Wang, X. ^[2];

^[1]; Cheong, S.-W. ^[2];

^[1]; Taylor, Antoinette Jane ^[1];

^[1];

^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Rutgers Univ., Piscataway, NJ (United States)

Publication Date:: Tue Nov 22 00:00:00 EST 2016

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1345937

Alternate Identifier(s):: OSTI ID: 1333320

Report Number(s):: LA-UR-16-26221
Journal ID: ISSN 2469-9950; TRN: US1701221

Grant/Contract Number:: AC52-06NA25396; FG02-07ER46382

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 94; Journal Issue: 18; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Material Science

Citation Formats


                    Bowlan, Pamela Renee, Trugman, Stuart Alan, Wang, X., Dai, Yaomin, Cheong, S.-W., Bauer, Eric Dietzgen, Taylor, Antoinette Jane, Yarotski, Dmitry Anatolievitch, and Prasankumar, Rohit Prativadi. Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses.  United States: N. p., 2016. 
Web.  doi:10.1103/PhysRevB.94.184429.

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                    Bowlan, Pamela Renee, Trugman, Stuart Alan, Wang, X., Dai, Yaomin, Cheong, S.-W., Bauer, Eric Dietzgen, Taylor, Antoinette Jane, Yarotski, Dmitry Anatolievitch, & Prasankumar, Rohit Prativadi. Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses.  United States.  https://doi.org/10.1103/PhysRevB.94.184429

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                    Bowlan, Pamela Renee, Trugman, Stuart Alan, Wang, X., Dai, Yaomin, Cheong, S.-W., Bauer, Eric Dietzgen, Taylor, Antoinette Jane, Yarotski, Dmitry Anatolievitch, and Prasankumar, Rohit Prativadi. Tue .  
"Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses".  United States.  https://doi.org/10.1103/PhysRevB.94.184429.  https://www.osti.gov/servlets/purl/1345937.

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@article{osti_1345937,

  title        = {Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses},

  author       = {Bowlan, Pamela Renee and Trugman, Stuart Alan and Wang, X. and Dai, Yaomin and Cheong, S.-W. and Bauer, Eric Dietzgen and Taylor, Antoinette Jane and Yarotski, Dmitry Anatolievitch and Prasankumar, Rohit Prativadi},

  abstractNote = {We investigate spin dynamics in the antiferromagnetic (AFM) multiferroic TbMnO3 using opticalpump, terahertz (THz)-probe spectroscopy. Photoexcitation results in a broadband THz transmission change, with an onset time of 25 ps at 6 K that becomes faster at higher temperatures. We attribute this time constant to spin-lattice thermalization. The excellent agreement between our measurements and previous ultrafast resonant x-ray diffraction measurements on the same material confirms that our THz pulse directly probes spin order. We suggest that this could be the case in general for insulating AFM materials, if the origin of the static absorption in the THz spectral range is magnetic.},

  doi          = {10.1103/PhysRevB.94.184429},

  journal      = {Physical Review B},

  number       = 18,

  volume       = 94,

  place        = {United States},

  year         = {Tue Nov 22 00:00:00 EST 2016},

  month        = {Tue Nov 22 00:00:00 EST 2016}

}

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Versteeg, R. B.; Zhu, J.; Padmanabhan, P.
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Title: Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses

Abstract

Citation Formats

Ultrafast optical and far-infrared quasiparticle dynamics in correlated electron materials journal, December 2002

Phase inhomogeneities in the charge-orbital-ordered manganite Nd 0.5 Sr 0.5 MnO 3 revealed through polaron dynamics journal, July 2007

Origin of Electromagnon Excitations in Multiferroic R MnO 3 journal, January 2009

Controlling coherent and incoherent spin dynamics by steering the photoinduced energy flow journal, February 2014

Spin-dependent polaron formation dynamics in Eu 0.75 Y 0.25 MnO 3 probed by femtosecond pump-probe spectroscopy journal, February 2015

Evolution of three-dimensional correlations during the photoinduced melting of antiferromagnetic order in La 0.5 Sr 1.5 MnO 4 journal, August 2012

Probing ultrafast spin dynamics through a magnon resonance in the antiferromagnetic multiferroic HoMnO 3 journal, September 2016

Laser-induced ultrafast spin reorientation in the antiferromagnet TmFeO3 journal, June 2004

Spin–lattice interaction in colossal magnetoresistance manganites journal, December 2000

Ultrafast Manipulation of Antiferromagnetism of NiO journal, September 2004

Ultrafast Spin Dynamics in Ferromagnetic Nickel journal, May 1996

Ultrafast Coupling between Light, Coherent Lattice Vibrations, and the Magnetic Structure of Semicovalent LaMnO 3 journal, August 2009

Evidence for an Electric-Dipole Active Continuum Band of Spin Excitations in Multiferroic TbMnO 3 journal, October 2008

Anti-Jahn-Teller polaron in LaMnO 3 journal, October 1999

Magnetic Order and Spin Dynamics in Ferroelectric H o M n O 3 journal, March 2005

Specific heat and magnetization studies of R MnO 3 ( R =Sm, Eu, Gd, Tb and Dy) multiferroics journal, March 2011

Photocreating supercooled spiral-spin states in a multiferroic manganite journal, August 2016

Magnetic Inversion Symmetry Breaking and Ferroelectricity in TbMnO 3 journal, August 2005

Colossal magnon-phonon coupling in multiferroic Eu 0.75 Y 0.25 Mn O 3 journal, August 2007

Understanding Multiferroic Hexagonal Manganites by Static and Ultrafast Optical Spectroscopy journal, January 2013

Ultrafast optical probes of polaron dynamics in La0.7Ca0.3MnO3 thin films journal, February 2009

Anomalous thermal expansion and strong damping of the thermal conductivity of Nd Mn O 3 and Tb Mn O 3 due to 4 f crystal-field excitations journal, September 2007

Dynamics of photo-excited electrons in magnetically ordered TbMnO 3 journal, February 2013

Coexistence of coupled magnetic phases in epitaxial TbMnO 3 films revealed by ultrafast optical spectroscopy journal, September 2012

Observation of coupled magnetic and electric domains journal, October 2002

Spin-Lattice Relaxation in Ferromagnets journal, December 1952

Multiferroic memories journal, March 2007

Magneto-optical study of the spin-polarized electronic states in multiferroic Tb Mn O 3 journal, May 2008

Femtosecond spectroscopy of electron-electron and electron-phonon energy relaxation in Ag and Au journal, May 1995

Magnetic order dynamics in optically excited multiferroic TbMn O 3 journal, November 2015

Possible evidence for electromagnons in multiferroic manganites journal, January 2006

Quasiparticle relaxation across the spin-density-wave gap in the itinerant antiferromagnet U Ni Ga 5 journal, October 2006

Dynamics of photoexcited quasiparticles in heavy electron compounds journal, April 2006

Terahertz time-domain spectroscopy of electromagnons in multiferroic perovskite manganites [Invited] journal, January 2009

Nonlinear electron transport in an electron-hole plasma journal, April 2012

Using ultrashort optical pulses to couple ferroelectric and ferromagnetic order in an oxide heterostructure journal, December 2014

Ultrafast Conductivity Dynamics in Colossal Magnetoresistance Manganites journal, June 2001

Fundamentals of Multiferroic Materials and Their Possible Applications journal, February 2015

Magnetic structure of TbMnO 3 by neutron diffraction journal, July 2004

Large-Amplitude Spin Dynamics Driven by a THz Pulse in Resonance with an Electromagnon journal, March 2014

Internal motions of a quasiparticle governing its ultrafast nonlinear response journal, December 2007

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Using ultrashort terahertz pulses to directly probe spin dynamics in insulating antiferromagnets journal, April 2018

Ultrafast optical and far-infrared quasiparticle dynamics in correlated electron materials
journal, December 2002

Phase inhomogeneities in the charge-orbital-ordered manganite ${Nd}_{0.5} {Sr}_{0.5} {MnO}_{3}$ revealed through polaron dynamics
journal, July 2007

Origin of Electromagnon Excitations in Multiferroic $R {MnO}_{3}$
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Controlling coherent and incoherent spin dynamics by steering the photoinduced energy flow
journal, February 2014

Spin-dependent polaron formation dynamics in ${Eu}_{0.75} Y_{0.25} {MnO}_{3}$ probed by femtosecond pump-probe spectroscopy
journal, February 2015

Evolution of three-dimensional correlations during the photoinduced melting of antiferromagnetic order in La $_{0.5}$ Sr $_{1.5}$ MnO $_{4}$
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Probing ultrafast spin dynamics through a magnon resonance in the antiferromagnetic multiferroic ${HoMnO}_{3}$
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Laser-induced ultrafast spin reorientation in the antiferromagnet TmFeO3
journal, June 2004

Spin–lattice interaction in colossal magnetoresistance manganites
journal, December 2000

Ultrafast Manipulation of Antiferromagnetism of NiO
journal, September 2004

Ultrafast Spin Dynamics in Ferromagnetic Nickel
journal, May 1996

Ultrafast Coupling between Light, Coherent Lattice Vibrations, and the Magnetic Structure of Semicovalent ${LaMnO}_{3}$
journal, August 2009

Evidence for an Electric-Dipole Active Continuum Band of Spin Excitations in Multiferroic ${TbMnO}_{3}$
journal, October 2008

Anti-Jahn-Teller polaron in ${LaMnO}_{3}$
journal, October 1999

Magnetic Order and Spin Dynamics in Ferroelectric ${H o M n O}_{3}$
journal, March 2005

Specific heat and magnetization studies of R MnO ₃ ( R =Sm, Eu, Gd, Tb and Dy) multiferroics
journal, March 2011

Photocreating supercooled spiral-spin states in a multiferroic manganite
journal, August 2016

Magnetic Inversion Symmetry Breaking and Ferroelectricity in ${TbMnO}_{3}$
journal, August 2005

Colossal magnon-phonon coupling in multiferroic ${Eu}_{0.75} Y_{0.25} Mn O_{3}$
journal, August 2007

Understanding Multiferroic Hexagonal Manganites by Static and Ultrafast Optical Spectroscopy
journal, January 2013

Ultrafast optical probes of polaron dynamics in La0.7Ca0.3MnO3 thin films
journal, February 2009

Anomalous thermal expansion and strong damping of the thermal conductivity of $Nd Mn O_{3}$ and $Tb Mn O_{3}$ due to $4 f$ crystal-field excitations
journal, September 2007

Dynamics of photo-excited electrons in magnetically ordered TbMnO ₃
journal, February 2013

Coexistence of coupled magnetic phases in epitaxial TbMnO ₃ films revealed by ultrafast optical spectroscopy
journal, September 2012

Observation of coupled magnetic and electric domains
journal, October 2002

Spin-Lattice Relaxation in Ferromagnets
journal, December 1952

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journal, March 2007

Magneto-optical study of the spin-polarized electronic states in multiferroic $Tb Mn O_{3}$
journal, May 2008

Femtosecond spectroscopy of electron-electron and electron-phonon energy relaxation in Ag and Au
journal, May 1995

Magnetic order dynamics in optically excited multiferroic $TbMn O_{3}$
journal, November 2015

Possible evidence for electromagnons in multiferroic manganites
journal, January 2006

Quasiparticle relaxation across the spin-density-wave gap in the itinerant antiferromagnet $U Ni {Ga}_{5}$
journal, October 2006

Dynamics of photoexcited quasiparticles in heavy electron compounds
journal, April 2006

Terahertz time-domain spectroscopy of electromagnons in multiferroic perovskite manganites [Invited]
journal, January 2009

Nonlinear electron transport in an electron-hole plasma
journal, April 2012

Using ultrashort optical pulses to couple ferroelectric and ferromagnetic order in an oxide heterostructure
journal, December 2014

Ultrafast Conductivity Dynamics in Colossal Magnetoresistance Manganites
journal, June 2001

Fundamentals of Multiferroic Materials and Their Possible Applications
journal, February 2015

Magnetic structure of ${TbMnO}_{3}$ by neutron diffraction
journal, July 2004

Large-Amplitude Spin Dynamics Driven by a THz Pulse in Resonance with an Electromagnon
journal, March 2014

Internal motions of a quasiparticle governing its ultrafast nonlinear response
journal, December 2007

A tunable time-resolved spontaneous Raman spectroscopy setup for probing ultrafast collective excitation and quasiparticle dynamics in quantum materials
journal, July 2018

Using ultrashort terahertz pulses to directly probe spin dynamics in insulating antiferromagnets
journal, April 2018