skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Using ultrashort terahertz pulses to directly probe spin dynamics in insulating antiferromagnets

Journal Article · · Journal of Physics. D, Applied Physics

Terahertz pulses are a direct and general probe of ultrafast spin dynamics in insulating antiferromagnets (AFM). This is shown by using optical-pump, THz-probe spectroscopy to directly track AFM spin dynamics in the hexagonal multiferroic HoMnO3 and the orthorhombic multiferroic TbMnO3. Here, our studies show that despite the different structural and spin orders in these materials, THz pulses can unambiguously resolve spin dynamics after optical photoexcitation. Lastly, we believe that this approach is quite general and can be applied to a broad range of materials with different AFM spin alignments, providing a novel non-contact approach for probing AFM order with femtosecond temporal resolution.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1481996
Report Number(s):
LA-UR-18-22625
Journal Information:
Journal of Physics. D, Applied Physics, Vol. 51, Issue 19; ISSN 0022-3727
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (78)

Ultrafast optical manipulation of magnetic order journal September 2010
Ultrafast magnetization dynamics of antiferromagnetic compounds journal August 2008
Laser-induced ultrafast spin reorientation in the antiferromagnet TmFeO3 journal June 2004
Antiferromagnetic opto-spintronics journal March 2018
Writing and reading of an arbitrary optical polarization state in an antiferromagnet journal November 2014
The 2017 Magnetism Roadmap journal August 2017
Ultrafast and Energy-Efficient Quenching of Spin Order: Antiferromagnetism Beats Ferromagnetism journal November 2017
Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses journal November 2016
Probing ultrafast spin dynamics through a magnon resonance in the antiferromagnetic multiferroic HoMnO 3 journal September 2016
Observation of coherent acoustic phonons and magnons in an antiferromagnet NiO journal September 2012
Coherent terahertz control of antiferromagnetic spin waves journal November 2010
Excitation of coupled spin–orbit dynamics in cobalt oxide by femtosecond laser pulses journal September 2017
Inertia-driven spin switching in antiferromagnets journal August 2009
Nonlinear spin control by terahertz-driven anisotropy fields journal October 2016
Terahertz-Driven Nonlinear Spin Response of Antiferromagnetic Nickel Oxide journal November 2016
Ultrafast Generation of Ferromagnetic Order via a Laser-Induced Phase Transformation in FeRh Thin Films journal November 2004
Controlling coherent and incoherent spin dynamics by steering the photoinduced energy flow journal February 2014
Optical determination of the Néel vector in a CuMnAs thin-film antiferromagnet journal January 2017
Magnetization-induced-second-harmonic generation from surfaces and interfaces journal January 2005
Second-harmonic generation as a tool for studying electronic and magnetic structures of crystals: review journal January 2005
Probing ultrafast photo-induced dynamics of the exchange energy in a Heisenberg antiferromagnet journal July 2015
Large-Amplitude Spin Dynamics Driven by a THz Pulse in Resonance with an Electromagnon journal March 2014
Ultrafast energy- and momentum-resolved dynamics of magnetic correlations in the photo-doped Mott insulator Sr2IrO4 journal May 2016
Transient ferromagnetic-like state mediating ultrafast reversal of antiferromagnetically coupled spins journal March 2011
Ultrafast Demagnetization Dynamics at the M Edges of Magnetic Elements Observed Using a Tabletop High-Harmonic Soft X-Ray Source journal December 2009
Structural dynamics in FeRh during a laser-induced metamagnetic phase transition journal January 2012
Terahertz radiation from coherent antiferromagnetic magnons excited by femtosecond laser pulses journal May 2010
The vectorial control of magnetization by light journal June 2011
Coherent control of terahertz radiation from antiferromagnetic magnons in NiO excited by optical laser pulses journal May 2012
Ultrafast optical modification of exchange interactions in iron oxides journal September 2015
Resolving the spin reorientation and crystal-field transitions in TmFeO3 with terahertz transient journal March 2016
Magnetic Exchange Interaction between Rare-Earth and Mn Ions in Multiferroic Hexagonal Manganites journal December 2008
Magnetoelectric resonance with electromagnons in a perovskite helimagnet journal December 2011
Table-top sources of ultrashort THz pulses journal September 2007
Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors journal January 1990
Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy journal June 2011
Magnons and crystal-field transitions in hexagonal R MnO 3 ( R = Er, Tm, Yb, Lu) single crystals journal April 2012
Selective Excitation of Terahertz Magnetic and Electric Dipoles in Er 3 + Ions by Femtosecond Laser Pulses in ErFeO 3 journal January 2017
Terahertz emission spectroscopy of laser-induced spin dynamics in TmFeO 3 and ErFeO 3 orthoferrites journal November 2014
Terahertz time-domain spectroscopy of electromagnons in multiferroic perovskite manganites [Invited] journal January 2009
Evidence for an Electric-Dipole Active Continuum Band of Spin Excitations in Multiferroic TbMnO 3 journal October 2008
Low-temperature time-domain terahertz spectroscopy of terbium gallium garnet crystals journal March 2013
Electric-Dipole Active Two-Magnon Excitation in a b Spiral Spin Phase of a Ferroelectric Magnet Gd 0.7 Tb 0.3 MnO 3 journal December 2008
Evidence for Electroactive Excitation of the Spin Cycloid in TbMnO 3 journal March 2010
Electromagnons in multiferroic RMn 2 O 5 compounds and their microscopic origin journal October 2008
Electromagnons in Multiferroic YMn 2 O 5 and TbMn 2 O 5 journal January 2007
Origin of Electromagnon Excitations in Multiferroic R MnO 3 journal January 2009
Colossal magnon-phonon coupling in multiferroic Eu 0.75 Y 0.25 Mn O 3 journal August 2007
Coherent Two-Dimensional Terahertz Magnetic Resonance Spectroscopy of Collective Spin Waves journal May 2017
Terahertz magnetic field induced coherent spin precession in YFeO 3 journal February 2012
Hierarchy of Bound States in the One-Dimensional Ferromagnetic Ising Chain CoNb 2 O 6 Investigated by High-Resolution Time-Domain Terahertz Spectroscopy journal April 2014
Giant magnetoelectric effect in multiferroic HoMnO 3 with a high ferroelectric transition temperature journal April 2009
Magnetic Inversion Symmetry Breaking and Ferroelectricity in TbMnO 3 journal August 2005
Far‐Infrared Antiferromagnetic Resonance in Hexagonal YMnO 3 journal March 1969
Possible evidence for electromagnons in multiferroic manganites journal January 2006
Ultrafast optical and far-infrared quasiparticle dynamics in correlated electron materials journal December 2002
Femtosecond spectroscopy of electron-electron and electron-phonon energy relaxation in Ag and Au journal May 1995
Ultrafast Conductivity Dynamics in Colossal Magnetoresistance Manganites journal June 2001
Magnetocaloric effect in HoMnO3 crystal journal April 2010
Calorimetric studies of thermal crystallization in glassy Se 80− x Te 20 Sn x (0⩽ x ⩽10) alloys journal May 2011
Magnetic order dynamics in optically excited multiferroic TbMn O 3 journal November 2015
Spin–lattice interaction in colossal magnetoresistance manganites journal December 2000
Coexistence of coupled magnetic phases in epitaxial TbMnO 3 films revealed by ultrafast optical spectroscopy journal September 2012
Spin-dependent polaron formation dynamics in Eu 0.75 Y 0.25 MnO 3 probed by femtosecond pump-probe spectroscopy journal February 2015
Magnetization dynamics and the Mn 3 + d d excitation of hexagonal HoMnO 3 single crystals using wavelength-tunable time-resolved femtosecond spectroscopy journal July 2009
Quasiparticle relaxation across the spin-density-wave gap in the itinerant antiferromagnet U Ni Ga 5 journal October 2006
Antiferromagnetic opto-spintronics text January 2018
Coherent terahertz control of antiferromagnetic spin waves text January 2011
Probing ultrafast photo-induced dynamics of the exchange energy in a Heisenberg antiferromagnet conference January 2016
Ultrafast Conductivity Dynamics in Colossal Magnetoresistance Manganites text January 2001
Nonlinear spin control by terahertz-driven anisotropy fields text January 2016
Terahertz time-domain spectroscopy of electromagnons in multiferroic perovskite manganites text January 2009
Evidence of electro-active excitation of the spin cycloid in TbMnO3 text January 2010
Coexistence of coupled magnetic phases in epitaxial TbMnO3 films revealed by ultrafast optical spectroscopy text January 2012
Optical determination of the Neel vector in a CuMnAs thin-film antiferromagnet text January 2016
Directly probing spin dynamics in insulating antiferromagnets using ultrashort terahertz pulses text January 2016
Possible evidence for electromagnons in multiferroic manganites text January 2006
Electromagnons in multiferroic YMn2O5 and TbMn2O5 text January 2006

Cited By (1)

Lattice and spin dynamics in multiferroic BiFeO3 and RMnO3 journal May 2019