First, using ARPES, we analyze the Fermi surface (FS) of TbTe3 at T = 100 K, well below Tc = 336 K, the transition temperature of the unidirectional CDW phase40. The electronic properties near EF are governed by the Te sheets (Fig. 1a), which give rise to the diamond-shaped bands shown in Fig. 1b. Strongly wave … See more The CDW-to-metal transition can be described by an order parameter ψ, with ∣ψ∣ = 0 in the metallic and 0 < ∣ψ∣ ≤ 1 in the CDW phase. Due to … See more Time-resolved ARPES allows to extract the transient electronic temperatures from Fermi–Dirac fits to the energy distribution of metallic regions of the FS (see Supplementary … See more Near the transition temperature, the order parameter can be approximated by the Landau theory of second-order phase transitions2. Thus, to simulate the dynamics of the … See more
Optical detection of the density-wave instability in the ... - Nature
WebApr 7, 2024 · Charge-density-wave (CDW) order has long been interpreted as arising from a Fermi-surface instability in the parent metallic phase. While phonon-electron coupling has been suggested to influence ... WebCharge density wave (CDW) orders in vanadium-based kagome metals have recently received tremendous attention due to their unique properties and intricate interplay with … movie snowfall on fox
Physics - Chiral symmetry breaking and charge order
WebIn this system, there are two possible mechanisms. The first is having site-centered and bond-centered charge ordering simultaneously, which gives effective polarization as … WebFeb 9, 2024 · Recently, an unusual competition between superconductivity and a charge-density-wave (CDW) order has been found in the A V 3 Sb 5 ( A = K, Rb, Cs) family with two-dimensional vanadium kagome nets ... WebNov 11, 2024 · Here, we study the nature of this charge-density-wave state in an exemplar of these new compounds, CsV3Sb5, and establish that the charge-density wave arises solely because of reconstruction of the vanadium orbitals comprising its kagome lattice. heath house staffordshire sold