Photoexcitation-induced Stacking Transition Assisted by Intralayer Reconstruction in Charge-Density-Wave Materials

Laser excitation has emerged as an effective tool for probing microscopic interactions and manipulating phases of matter. Among charge density wave (CDW) materials, 1T-TaS2 has garnered significant attention due to its diverse stacking orders and photoexcited responses. However, the mechanisms driving transitions among different stacking orders and the microscopic out-of-equilibrium dynamics remain unclear. We elucidate that photoexcitation can introduce interlayer stacking order transitions facilitated by laser-induced intralayer reconstruction in 1T-TaS2. Importantly, our finding reveals a novel pathway to introduce different phases through laser excitations, apparently distinct from thermally-induced phase transitions via interlayer sliding. In particular, photoexcitation is able to considerably change potential energy surfaces and evoke collective lattice dynamics. Consequently, the laser-induced intralayer reconstruction plays a crucial role in interlayer stacking-order transition, offering a new method to create exotic stackings and quantum phases. The exploration opens up great opportunities for manipulating CDW phases and electronic properties on the femtosecond timescale.

• Publication year

  2025

• Venue

  Unknown venue

• Publication date

  2025-02-25

• Fields of study

  Materials Science, Physics

• Identifiers
  arXiv 2502.17985
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• Dualistic insulator states in 1T-TaS2 crystals

  2024cited by this paper
• Charge density wave surface reconstruction in a van der Waals layered material

  2023cited by this paper
• Heavy fermions vs doped Mott physics in heterogeneous Ta-dichalcogenide bilayers

  2023cited by this paper
• Light-induced hexatic state in a layered quantum material

  2022cited by this paper
• Cavity-mediated thermal control of metal-to-insulator transition in 1T-TaS_2

  2022cited by this paper
• Observation of a massive phason in a charge-density-wave insulator

  2022cited by this paper
• Effect of stacking order on the electronic state of 1T−TaS2

  2021cited by this paper
• 1T-TaS 2 as a quantum spin liquid: from bulk to atomically-thin layers.

  2021cited by this paper
• Roles of the Narrow Electronic Band near the Fermi Level in 1T-TaS_{2}-Related Layered Materials.

  2021cited by this paper
• Artificial heavy fermions in a van der Waals heterostructure

  2021cited by this paper
• Identification of the Mott Insulating Charge Density Wave State in 1T-TaS_{2}.

  2021cited by this paper
• Strong correlations and orbital texture in single-layer 1T-TaSe2

  2020cited by this paper
• Band insulator to Mott insulator transition in 1T-TaS2

  2020cited by this paper
• Coherent modulation of the electron temperature and electron–phonon couplings in a 2D material

  2019cited by this paper
• Origin of the Insulating Phase and First-Order Metal-Insulator Transition in 1T-TaS_{2}.

  2019cited by this paper
• Photoexcitation in Solids: First‐Principles Quantum Simulations by Real‐Time TDDFT

  2018cited by this paper
• Photoexcitation Induced Quantum Dynamics of Charge Density Wave and Emergence of a Collective Mode in 1T-TaS$_2$

  2018cited by this paper
• Ultrafast Formation of a Charge Density Wave State in 1T-TaS_{2}: Observation at Nanometer Scales Using Time-Resolved X-Ray Diffraction.

  2017cited by this paper
• Controlling many-body states by the electric-field effect in a two-dimensional material

  2016cited by this paper
• Controlling the metal-to-insulator relaxation of the metastable hidden quantum state in 1T-TaS2

  2015cited by this paper
• Gate-tunable phase transitions in thin flakes of 1T-TaS$_{2}$

  2015cited by this paper
• Classification of charge density waves based on their nature

  2015cited by this paper
• Nanoscale manipulation of the Mott insulating state coupled to charge order in 1T-TaS2

  2015cited by this paper
• Exploration of metastability and hidden phases in correlated electron crystals visualized by femtosecond optical doping and electron crystallography

  2015cited by this paper
• Non-thermal separation of electronic and structural orders in a persisting charge density wave.

  2014cited by this paper
• Three-dimensional metallic and two-dimensional insulating behavior in octahedral tantalum dichalcogenides

  2014cited by this paper
• Orbital textures and charge density waves in transition metal dichalcogenides

  2014cited by this paper
• Ultrafast Switching to a Stable Hidden Quantum State in an Electronic Crystal

  2014cited by this paper
• Time-domain classification of charge-density-wave insulators

  2012cited by this paper
• Clocking the melting transition of charge and lattice order in 1T-TaS2 with ultrafast extreme-ultraviolet angle-resolved photoemission spectroscopy.

  2011cited by this paper
• From Mott state to superconductivity in 1T-TaS$_2$

  2010cited by this paper
• Snapshots of cooperative atomic motions in the optical suppression of charge density waves

  2010influential reference
• Real-time, local basis-set implementation of time-dependent density functional theory for excited state dynamics simulations.

  2008cited by this paper
• Attosecond spectroscopy in condensed matter

  2007cited by this paper
• Time evolution of the electronic structure of 1T-TaS2 through the insulator-metal transition.

  2006cited by this paper
• The SIESTA method for ab initio order-N materials simulation

  2001cited by this paper
• Density‐functional method for very large systems with LCAO basis sets

  1997cited by this paper
• Self-consistent order-N density-functional calculations for very large systems.

  1996cited by this paper
• Efficient pseudopotentials for plane-wave calculations.

  1991cited by this paper
• Density-functional theory for time-dependent systems.

  1987cited by this paper

• No citing papers are available for this paper.