Angle-resolved photoemission spectroscopy study of the charge density wave order in layered semiconductor EuTe4

Abstract

Layered tellurides have been extensively studied as a platform for investigating the Fermi surface (FS) nesting-driven charge density wave (CDW) states. EuTe4, one of quasi-two-dimensional (quasi-2D) binary rare-earth tetratellurides CDW compounds, with unconventional hysteretic transition, is currently receiving much attention. Here, the CDW modulation vector, momentum and temperature dependence of CDW gaps in EuTe4 are investigated using angle-resolved photoemission spectroscopy. Our results reveal that (i) a FS nesting vector q ~ 0.67 b* drives the formation of CDW state, (ii) a large anisotropic CDW gap is fully open in the whole FS, and maintains a considerable size even at 300 K, leading to appearance of semiconductor properties, (iii) an abnormal non-monotonic increase of CDW gap in magnitude as a function of temperature, (iv) an extra, larger gap opens at a higher binding energy due to the interaction between the different orbits of the main bands.

arXiv comment5 pages, 4 figures

References in corpus (25)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Complexity in Strongly Correlated Electronic Systems
• Titanic Magnetoresistance in WTe2
• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• Superconductivity in Cu_xTiSe_2
• Ubiquitous Interplay between Charge Ordering and High-Temperature Superconductivity in Cuprates
• Light-Induced Charge Density Wave in LaTe${}_3$
• ARPES Study of the Evolution of Band Structure and Charge Density Wave Properties in RTe3 for R = Y, La, Ce, Sm, Gd, Tb and Dy
• Ubiquitous formation of bulk Dirac cones and topological surface states from a single orbital manifold in transition-metal dichalcogenides
• Fermi Surface reconstruction in the CDW state of CeTe3 observed by photoemission
• Dynamical charge density fluctuations pervading the phase diagram of a Cu-based high-Tc superconductor
• Heavy-electron quantum criticality and single-particle spectroscopy
• Emergence of charge density waves and a pseudogap in single-layer TiTe2
• Re-entrant charge order in overdoped (Bi,Pb)${}_{2.12}$Sr${}_{1.88}$CuO${}_{6+\delta }$ outside the pseudogap regime
• Alternative route to charge density wave formation in multiband systems
• Charge Order from Orbital-dependent Coupling Evidenced by NbSe${}_2$
• Theory of stripes in quasi two dimensional rare-earth tritellurides
• Pressure dependence of the charge-density-wave and superconducting states in GdTe${}_3$, TbTe${}_3$ and DyTe${}_3$
• Unconventional hysteretic transition in a charge density wave
• Layered semiconductor EuTe 4 with charge density wave order in square tellurium sheets
• Temperature evolution of quasiparticle dispersion dynamics in semimetallic 1T-TiTe2 via high-resolution angle-resolved photoemission spectroscopy and ultrafast optical pump-probe spectroscopy
• Dirac semimetal PdTe2 temperature-dependent quasiparticle dynamics and electron-phonon coupling
• Three-Dimensional Fermi-Surface and Electron-Phonon Coupling in Semimetallic 1T-TiTe2 studied by Angle-Resolved Photoemission Spectroscopy
• Interplay between multiple charge-density waves and the relationship with superconductivity in Pd${}_x$HoTe${}_3$
• Interplay between electron band-anticrossing and charge-density-wave instabilities

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• Enhanced thermopower in a magnetic semiconductor EuTe4 with multiple charge-density-wave instabilities/
• Bidirectional ultrafast control of charge density waves via phase competition
• Observation of momentum dependent charge density wave gap in EuTe4
• Nesting-driven antiferromagnetic order in Kondo lattice CePd5Al2