Ultrafast manipulation of mirror domain walls in a charge density wave

Abstract

Domain walls (DWs) are singularities in an ordered medium that often host exotic phenomena such as charge ordering, insulator-metal transition, or superconductivity. The ability to locally write and erase DWs is highly desirable, as it allows one to design material functionality by patterning DWs in specific configurations. We demonstrate such capability at room temperature in a charge density wave (CDW), a macroscopic condensate of electrons and phonons, in ultrathin 1T-TaS${}_2$. A single femtosecond light pulse is shown to locally inject or remove mirror DWs in the CDW condensate, with probabilities tunable by pulse energy and temperature. Using time-resolved electron diffraction, we are able to simultaneously track anti-synchronized CDW amplitude oscillations from both the lattice and the condensate, where photo-injected DWs lead to a red-shifted frequency. Our demonstration of reversible DW manipulation may pave new ways for engineering correlated material systems with light.

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Cited by in corpus (47)

• Nonthermal pathways to ultrafast control in quantum materials
• Ultrafast nano-imaging of the order parameter in a structural phase transition
• Intertwined chiral charge orders and topological stabilization of the light-induced state of a prototypical transition metal dichalcogenide
• Visualization of Chiral Electronic Structure and Anomalous Optical Response in a Material with Chiral Charge Density Waves
• Atomic-Scale Visualization of Chiral Charge Density Wave States and Their Reversible Transition
• Photoexcitation Induced Quantum Dynamics of Charge Density Wave and Emergence of a Collective Mode in 1T-TaS${}_2$
• Parametric excitation of an optically silent Goldstone-like phonon mode
• Comparing the generalized Kadanoff-Baym ansatz with the full Kadanoff-Baym equations for an excitonic insulator out of equilibrium
• Electrical switching of ferro-rotational order in nano-thick 1T-TaS${}_2$ crystals
• Ultrafast Relativistic Electron Nanoprobes
• Light-induced hexatic state in a layered quantum material
• Ultrafast formation of topological defects in a 2D charge density wave
• Zoology of domain walls in quasi-2D correlated charge density wave of 1T-TaS2
• Cavity control of nonlinear phononics
• Snapshots of a light-induced metastable hidden phase driven by the collapse of charge order
• Second harmonic generation as a probe of broken mirror symmetry
• Ultrafast Modulations And Detection of a Ferro-rotational Charge Density Wave Using Time-resolved Electric Quadrupole Second Harmonic Generation
• Dynamical properties of a driven dissipative dimerized $S=1/2$ chain
• A kiloelectron-volt ultrafast electron micro-diffraction apparatus using low emittance semiconductor photocathodes
• Linking emergent phenomena and broken symmetries through one-dimensional objects and their dot/cross products
• Configurational Electronic States in Layered Metallic Dichalcogenides
• Unconventional light-induced states visualized by ultrafast electron diffraction and microscopy
• Probing charge density wave phases and the Mott transition in $1T$-TaS${}_2$ by inelastic light scattering
• Imaging the photochemical dynamics of cyclobutanone with MeV ultrafast electron diffraction
• Photo-induced Tellurium segregation in $\mathrm{MoT}{\mathrm{e}}_2$
• Understanding chiral charge-density wave by frozen chiral phonon
• Ultrafast all-optical manipulation of the charge-density-wave in VTe${}_2$
• Concurrent probing of electron-lattice dephasing induced by photoexcitation in 1T-TaSeTe using ultrafast electron diffraction
• Real-time evolution of static electron-phonon models in time-dependent electric fields
• Ultimate bunch length and emittance performance of an MeV ultrafast electron diffraction apparatus with a DC gun and a multi-cavity SRF linac
• Time-domain study of coupled collective excitations in quantum materials
• Observation and manipulation of a phase separated state in a charge density wave material
• Interlayer Hopping between Surface Mott Insulator and Bulk Band Insulator in layered 1T-TaS_{2}
• Dynamic phase transition into a mixed-CDW state in 1$T$-TaS${}_2$ via a thermal quench
• Femtosecond trimer quench cycled at megahertz rates in the unconventional charge-density wave material $1\text{T’}-{\text{TaTe}}_2$
• Ultrafast excitation and topological soliton formation in incommensurate charge density wave states
• Bidirectional ultrafast control of charge density waves via phase competition
• Using magnetic dynamics to measure the spin gap in a candidate Kitaev material
• Origin of Stripe and Quasi-Stripe CDW Structures in Monolayer MX${}_2$ compounds: Multivalley Free Energy Landscape
• Two-dimensional charge order stabilized in clean polytype heterostructures
• Imaging of electrically controlled van der Waals layer stacking in 1T-TaS2
• Anomalous 140 K electronic transition in Bi${}_2$Se${}_3$: Possible charge order in a defect-engineered system
• Topical review: the nature of the ground state and possibility of a quantum spin liquid in 1T metal dichalcogenides
• Effect of Interlayer Stacking on the Electronic Properties of 1$T$-TaS${}_2$
• Ultrafast Electronic Structure Engineering in 1$T$-TaS${}_2$: Role of Doping and Amplitude Mode Dynamics
• Transient ordering in the Gross-Pitaevskii lattice subject to an energy quench within the disordered phase
• Emergent quantum phenomena in two-dimensional 1T-TaS2