Spintronic Sources of Ultrashort Terahertz Electromagnetic Pulses

Abstract

Spintronic terahertz emitters are novel, broadband and efficient sources of terahertz radiation, which emerged at the intersection of ultrafast spintronics and terahertz photonics. They are based on efficient spin-current generation, spin-to-charge-current and current-to-field conversion at terahertz rates. In this review, we address the recent developments and applications, the current understanding of the physical processes as well as the future challenges and perspectives of broadband spintronic terahertz emitters.

References in corpus (44)

• Super-Diffusive Spin-Transport as a Mechanism of Ultrafast Demagnetization
• Electrodynamics of Correlated Electron Materials
• Perspective: Ultrafast magnetism and THz spintronics
• Nonlinear light-matter interaction at terahertz frequencies
• Determination of intrinsic spin Hall angle in Pt
• Powerful and Tunable THz Emitters Based on the Fe/Pt Magnetic Heterostructure
• Surface state dominated spin-charge current conversion in topological insulator/ferromagnetic insulator heterostructures
• Observation of Inverse Edelstein Effect in Rashba-Split 2DEG between SrTiO3 and LaAlO3 at Room Temperature
• Ultrafast phononic switching of magnetization
• Maximizing Spin-Orbit Torque Generated by the Spin Hall Effect of Pt
• Anisotropic spin Hall effect from first principles
• Picosecond spin Seebeck effect
• Optical control of magnetization of micron-size domains in antiferromagnetic NiO single crystals
• Ultrafast spin-currents and charge conversion at 3d-5d interfaces probed by time-domain terahertz spectroscopy
• Principles of spintronic THz emitters
• Laser induced THz emission from femtosecond photocurrents in Co/ZnO/Pt and Co/Cu/Pt multilayers
• Driving ferromagnets into a critical region of a magnetic phase diagram
• Active spintronic-metasurface terahertz emitters with tunable chirality
• $s$-$d$ model for local and nonlocal spin dynamics in laser-excited magnetic heterostructures
• Broadband terahertz probes of anisotropic magnetoresistance disentangle extrinsic and intrinsic contributions
• Evaluation of bulk-interface contributions to Edelstein magnetoresistance at metal/oxide interfaces
• Frequency-independent terahertz anomalous Hall effect in DyCo${}_5$, Co${}_{32}$Fe${}_{68}$ and Gd${}_{27}$Fe${}_{73}$ thin films from DC to 40 THz
• Co${}_2$FeAl full Heusler compound based spintronic terahertz emitter
• Average power scaling of THz spintronic emitters in reflection geometry
• Ultrafast spin-charge conversion at SnBi${}_2$Te${}_4$/Co topological insulator interfaces probed by terahertz emission spectroscopy
• Simulation of Hot-Carrier Dynamics and Terahertz Emission in Laser-Excited Metallic Bilayers
• Transition of laser-induced terahertz spin currents from torque- to conduction-electron-mediated transport
• THz pulses from optically excited Fe, Pt and Ta based Spintronic Heterostructures
• Probing optical spin-currents using THz spin-waves in noncollinear magnetic bilayers
• Terahertz Emission From an Exchange-Coupled Synthetic Antiferromagnet
• Spin-voltage-driven efficient terahertz spin currents from the magnetic Weyl semimetals Co${}_2$MnGa and Co${}_2$MnAl
• Spintronic emitters for super-resolution in THz-spectral imaging
• Temperature dependence of the interface spin Seebeck effect
• Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMn
• Theory of spin-Hall magnetoresistance in the AC (terahertz) regime
• Transfer Matrix description of heterostructured spintronics Terahertz emission
• State-resolved ultrafast charge and spin dynamics in [Co/Pd] multilayers
• The role of spin-lattice coupling for ultrafast magnetization changes in rare earth metals
• Nonlinear dynamics of electromagnetic field and valley polarization in WSe${}_2$ monolayer
• Ultrafast optical control over spin and momentum in solids
• Ab-initio study of ultrafast spin dynamics in Gdx(FeCo){1-x} alloys
• Femtosecond laser comb driven perpendicular standing spin waves
• Spin injection characteristics of Py/graphene/Pt by gigahertz and terahertz magnetization dynamics driven by femtosecond laser pulse
• Solid-State Biased Coherent Detection of Ultra-Broadband Terahertz Pulses for high repetition rate, low pulse energy lasers

Cited by in corpus (27)

• Time-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungsten
• Transition of laser-induced terahertz spin currents from torque- to conduction-electron-mediated transport
• Accessing ultrafast spin-transport dynamics in copper using broadband terahertz spectroscopy
• Maximizing the electromagnetic efficiency of spintronic terahertz emitters
• Modelling of Spintronic Terahertz Emitters as a function of spin generation and diffusion geometry
• Ultrafast magnetization reversal in ferromagnetic spin-valves: an s-d model perspective
• Hybrid magnon-phonon cavity for large-amplitude terahertz spin-wave excitation
• Quantum-classical approach to spin and charge pumping and the ensuing radiation in THz spintronics: Example of ultrafast-light-driven Weyl antiferromagnet Mn${}_3$Sn
• Controlling polarization of spintronic THz emitter by remanent magnetization texture
• All-optical non-linear chiral ultrafast magnetization dynamics driven by circularly polarized magnetic fields
• Phonon-mediated strong coupling between a three-dimensional topological insulator and a two-dimensional antiferromagnetic material
• Inverse Rashba-Edelstein THz emission modulation induced by ferroelectricity in CoFeB/PtSe2/MoSe2//LiNbO3 systems
• Spatio-Temporal Electron Propagation Dynamics in Au/Fe/MgO(001) in nonequilibrium: Revealing Single Scattering Events and the Ballistic Limit
• Revealing subterahertz atomic vibrations in quantum paraelectrics by surface-sensitive spintronic terahertz spectroscopy
• Rotating spintronic terahertz emitter optimized for microjoule pump-pulse energies and megahertz repetition rates
• Enhanced laser-induced single-cycle terahertz generation in a spintronic emitter with a gradient interface
• Comparative Analysis of THz Signal Emission from SiO${}_2$/CoFeB/Metal Heterostructures: Wideband and High-Frequency THz Signal Advantage of PtBi-based Emitter
• Ultrafast Electron Temperature Dynamics in Spintronic Terahertz Emitters Studied by Optical-Pump Terahertz-Probe Spectroscopy
• Solid-State Biased Coherent Detection of Ultra-Broadband Terahertz Pulses for high repetition rate, low pulse energy lasers
• Ultrafast magnetization enhancement and spin current injection in magnetic multilayers by exciting the nonmagnetic metal
• Effective Magnetic Switching of THz Signal in Planar Structured Spintronic Emitters
• Laser-driven few-cycle Terahertz sources with high average power
• Magnetic domain scanning imaging using phase-sensitive THz-pulse detection
• Terahertz time-domain signatures of the inverse Edelstein effect in topological-insulator|ferromagnet heterostructures
• Revealing domain wall stability during ultrafast demagnetization
• High-efficiency Pt${}_{75}$Au${}_{25}$-based spintronic terahertz emitters
• Optimizing spin-based terahertz emission from magnetic heterostructures