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Title: Ultrafast band engineering and transient spin currents in antiferromagnetic oxides

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep25121· OSTI ID:1257759
 [1];  [1]
  1. Northwestern Univ., Evanston, IL (United States)

Here, we report a dynamic structure and band engineering strategy with experimental protocols to induce indirect-to-direct band gap transitions and coherently oscillating pure spin-currents in three-dimensional antiferromagnets (AFM) using selective phononic excitations. In the Mott insulator LaTiO3, we show that a photo-induced nonequilibrium phonon mode amplitude destroys the spin and orbitally degenerate ground state, reduces the band gap by 160 meV and renormalizes the carrier masses. The time scale of this process is a few hundreds of femtoseconds. Then in the hole-doped correlated metallic titanate, we show how pure spin-currents can be achieved to yield spin-polarizations exceeding those observed in classic semiconductors. Last, we demonstrate the generality of the approach by applying it to the non-orbitally degenerate AFM CaMnO3. These results advance our understanding of electron-lattice interactions in structures out-of-equilibrium and establish a rational framework for designing dynamic phases that may be exploited in ultrafast optoelectronic and optospintronic devices.

Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012375
OSTI ID:
1257759
Journal Information:
Scientific Reports, Vol. 6; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (64)

Control of the electronic phase of a manganite by mode-selective vibrational excitation journal September 2007
Ultrafast Switching to a Stable Hidden Quantum State in an Electronic Crystal journal April 2014
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
High-fluence femtosecond laser ablation of silica glass: effects of laser-induced pressure journal March 2011
An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions journal August 2014
How chemistry controls electron localization in 3d 1 perovskites: a Wannier-function study journal January 2005
Light-Induced Superconductivity in a Stripe-Ordered Cuprate journal January 2011
First principles phonon calculations in materials science journal November 2015
Dynamics and Control in Complex Transition Metal Oxides journal July 2014
Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling journal May 2014
Mode-Selective Control of the Crystal Lattice journal January 2015
Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5 journal December 2014
Terahertz-field-induced insulator-to-metal transition in vanadium dioxide metamaterial journal July 2012
Characterisation And Dielectric Property Analysis Of A-Site Doped LaTiO3-Δ Perovskites Synthesised By Ball Milling Method journal May 2015
Hole spin relaxation: optical deformation potential scattering journal June 2005
Nonlinear phononics as an ultrafast route to lattice control journal August 2011
Silicon spintronics journal April 2012
Zeeman-type spin splitting controlled by an electric field journal July 2013
Electronic Origin of Ultrafast Photoinduced Strain in BiFeO 3 journal January 2013
Optically induced lattice dynamics probed with ultrafast x-ray diffraction journal April 2008
Theory of nonlinear phononics for coherent light control of solids journal June 2014
Driving magnetic order in a manganite by ultrafast lattice excitation journal December 2011
Ultrafast Electronic Phase Transition in La 1 / 2 Sr 3 / 2 MnO 4 by Coherent Vibrational Excitation: Evidence for Nonthermal Melting of Orbital Order journal November 2008
Melting of Charge Stripes in Vibrationally Driven La 1.875 Ba 0.125 CuO 4 : Assessing the Respective Roles of Electronic and Lattice Order in Frustrated Superconductors journal April 2014
Coherent modulation of the YB a 2 C u 3 O 6 + x atomic structure by displacive stimulated ionic Raman scattering journal March 2015
Femtosecond multiple-pulse impulsive stimulated Raman scattering spectroscopy journal January 1991
Orbital Ordering and Local Magnetic Properties of Mott-Hubbard Insulators YTiO 3 and LaTiO 3 : NMR Study journal August 1999
Magnetic structure of the Jahn-Teller system La Ti O 3 journal April 2005
Jahn-Teller distortion and magnetic structures in LaMnO 3 journal November 1997
Electronic transition in La 1 x Sr x TiO 3 journal October 1999
Theory of Spin-Dependent Phonon-Assisted Optical Transitions in Silicon journal July 2010
Generating coherent THz phonons with light pulses journal April 1997
Optical spectra in (La,Y) TiO 3 : Variation of Mott-Hubbard gap features with change of electron correlation and band filling journal April 1995
Mott Transition and Suppression of Orbital Fluctuations in Orthorhombic 3 d 1 Perovskites journal April 2004
Structural phase transitions of the metal oxide perovskites SrTiO 3 , LaAlO 3 , and LaTiO 3 studied with a screened hybrid functional journal January 2013
Assessing the Perdew-Burke-Ernzerhof exchange-correlation density functional revised for metallic bulk and surface systems journal May 2008
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Projector augmented-wave method journal December 1994
Maximally localized generalized Wannier functions for composite energy bands journal November 1997
Correlation effects in the ground-state charge density of Mott insulating NiO: A comparison of ab initio calculations and high-energy electron diffraction measurements journal January 2000
t 2 g versus all 3 d localization in La M O 3 perovskites ( M =Ti–Cu): First-principles study journal March 1996
Spin-phonon coupling effects in transition-metal perovskites: A DFT +  U and hybrid-functional study journal February 2012
Raman scattering in the RTiO 3 family of Mott-Hubbard insulators journal January 1997
Dielectric properties and dynamical conductivity of LaTiO 3 :  From dc to optical frequencies journal December 2003
Laser Excitation of Lattice-Driven Anharmonic Magnetization Dynamics in Dielectric FeBO 3 journal April 2014
Reducing Dzyaloshinskii-Moriya interaction and field-free spin-orbit torque switching in synthetic antiferromagnets journal May 2021
High-resolution X-ray luminescence extension imaging journal February 2021
Electronic structure of AlFeN films exhibiting crystallographic orientation change from c- to a-axis with Fe concentrations and annealing effect journal February 2020
Optically induced lattice dynamics probed with ultrafast X-ray diffraction conference January 2005
Silicon Spintronics journal December 2008
Laser-Induced Damage in Optical Materials report July 1973
Silicon spintronics
  • Appelbaum, Ian
  • 2009 10th International Conference on Ultimate Integration on Silicon (ULIS, 2009 10th International Conference on Ultimate Integration of Silicon https://doi.org/10.1109/ulis.2009.4897526
conference March 2009
Spin-phonon coupling effects in transition-metal perovskites:a DFT+$U$ and hybrid-functional study text January 2011
Structural Phase Transitions of the Metal Oxide Perovskites SrTiO3, LaAlO3 and LaTiO3 Studied with a Screened Hybrid Functional text January 2012
Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling text January 2013
Theory of nonlinear phononics for coherent light-control of solids text January 2013
First principles phonon calculations in materials science preprint January 2015
The magnetic structure of the Jahn-Teller System LaTiO3 text January 2004
How chemistry controls electron localization in 3d1 perovskites: A Wannier-function study text January 2005
Silicon Spintronics conference October 2009
Normal Mode Determination of Perovskite Crystal Structures with Octahedral Rotations: Theory and Applications text January 2012
Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5 text January 2014
Melting of Charge Stripes in Vibrationally Driven La1.875Ba0.125CuO4: Assessing the Respective Roles of Electronic and Lattice Order in Frustrated Superconductors text January 2014
Dielectric properties and dynamical conductivity of LaTiO3: From dc to optical frequencies text January 2003

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