A time-domain phase diagram of metastable states in a charge ordered quantum material

Abstract

Metastable self-organized electronic states in quantum materials are of fundamental importance, displaying emergent dynamical properties that may be used in new generations of sensors and memory devices. Such states are typically formed through phase transitions under non-equilibrium conditions and the final state is reached through processes that span a large range of timescales. By using time-resolved optical techniques and femtosecond-pulse-excited scanning tunneling microscopy (STM), the evolution of the metastable states in the quasi-two-dimensional dichalcogenide 1T-TaS2 is mapped out on a temporal phase diagram using the photon density and temperature as control parameters on timescales ranging from 10^(-12) to 10^3 s. The introduction of a time-domain axis in the phase diagram enables us to follow the evolution of metastable emergent states created by different phase transition mechanisms on different timescales, thus enabling comparison with theoretical predictions of the phase diagram and opening the way to understanding of the complex ordering processes in metastable materials.

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• Gate controlled large resistance switching driven by charge density wave in 1T-TaS2/2H-MoS2 heterojunction
• Configurational Electronic States in Layered Metallic Dichalcogenides
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• The electric pulses induced multi-resistance states in the hysteresis temperature range of 1T-TaS2 and 1T-TaS1.6Se0.4

Cited by in corpus (18)

• Coherent phonon spectroscopy and interlayer modulation of charge density wave order in the kagome metal CsV${}_3$Sb${}_5$
• Light-induced hexatic state in a layered quantum material
• Snapshots of a light-induced metastable hidden phase driven by the collapse of charge order
• Photo-induced nonequilibrium states in Mott insulators
• Charge-Density-Wave Devices Printed with the Ink of Chemically Exfoliated 1T-TaS${}_2$ Fillers
• Quantum billiards with correlated electrons confined in triangular transition metal dichalcogenide monolayer nanostructures created by laser quench
• Terahertz Emission From Diamond Nitrogen-Vacancy Centers
• Enhancement of stability of metastable states in the presence of Lévy noise
• Origin of Distinct Insulating Domains in the Layered Charge Density Wave Material 1T-TaS2
• Distinguishing and controlling Mottness in 1T-TaS${}_2$ by ultrafast light
• Metastability in Coexisting Competing Orders
• Laser-induced helicity and texture-dependent switching of nanoscale stochastic domains in a ferromagnetic film
• A versatile setup for symmetry-resolved ultrafast dynamics of quantum materials
• Uncovering the nature of transient and metastable non-equilibrium phases in 1$T$-TaS${}_2$
• Charge-Density-Wave Oscillator Networks for Solving Combinatorial Optimization Problems
• Effect of Interlayer Stacking on the Electronic Properties of 1$T$-TaS${}_2$
• Enhanced-Entropy Phases in Geometrically Frustrated Pyrochlore Magnets
• Coherent X-ray Imaging of Stochastic Dynamics