Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy

  title={Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy},
  author={Samuel Beaulieu and Michael Schuler and Jakub Schusser and Shuo Dong and Tommaso Pincelli and Julian Maklar and Alexander Neef and Friedrich Reinert and Martin Wolf and Laurenz Rettig and Jan Min'ar and Ralph Ernstorfer},
  journal={npj Quantum Materials},
The momentum-dependent orbital character in crystalline solids, referred to as orbital texture, is of capital importance in the emergence of symmetry-broken collective phases, such as charge density waves as well as superconducting and topological states of matter. By performing extreme ultraviolet multidimensional angle-resolved photoemission spectroscopy for two different crystal orientations linked to each other by mirror symmetry, we isolate and identify the role of orbital texture in… 

Probing topological Floquet states in WSe2 using circular dichroism in time- and angle-resolved photoemission spectroscopy

Observing signatures of light-induced topological Floquet states in materials has been shown to be very challenging. Angle-resolved photoemission spectroscopy (ARPES) is well suited for the

Assessing Nontrivial Topology in Weyl Semimetals by Dichroic Photoemission

The electronic structure of Weyl semimetals features Berry flux monopoles in the bulk and Fermi arcs at the surface. While angle-resolved photoelectron spectroscopy (ARPES) is successfully used to

Dichroism in time-resolved ARPES and valence band orbital nature in BaNiS2

Time-resolved ARPES gives access to the band structure and ultrafast dynamics of excited electronic states in solids. The orbital character of the bands close to the Fermi level is essential to

Orbital Hall effect in bilayer transition metal dichalcogenides: From the intra-atomic approximation to the Bloch states orbital magnetic moment approach

Using an effective Dirac model, we study the orbital Hall effect (OHE) in bilayers of transition metal dichalcogenides with 2H stacking (2H-TMD). We use first-order perturbation theory in the interlayer

Time- and angle-resolved photoelectron spectroscopy of strong-field light-dressed solids: Prevalence of the adiabatic band picture

In recent years, strong-field physics in condensed-matter was pioneered as a novel approach for controlling material properties through laser-dressing, as well as for ultrafast spectroscopy via

Spin- and time-resolved photoelectron spectroscopy and diffraction studies using time-of-flight momentum microscopes

Momentum microscopy (MM) is a novel way of performing angular-resolved photoelectron spectroscopy (ARPES). Combined with time-of-flight (ToF) energy recording, its high degree of parallelization is

Time-of-Flight Photoelectron Momentum Microscopy With Spin Filtering

Momentum microscopy (MM) is a novel way of performing angular-resolved photoelectron spectroscopy (ARPES). Combined with time-of-flight (ToF) energy recording, its high degree of parallelization is

Polarization-Modulated Angle-Resolved Photoemission Spectroscopy: Toward Circular Dichroism without Circular Photons and Bloch Wave-function Reconstruction

SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA 2Condensed Matter Theory Group, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland 3Fritz Haber Institute of the Max Planck

Angle-resolved photoemission spectroscopy

The ARPES technique has seen continuous development with time. The distinct difference of the ARPES technique in this book is a high resolution spectroscopy system combined with a narrow band vacuum



Bloch Wavefunction Reconstruction using Multidimensional Photoemission Spectroscopy

Angle-resolved spectroscopy is the most powerful technique to investigate the electronic band structure of crystalline solids. To completely characterize the electronic structure of topological

Revealing Hidden Orbital Pseudospin Texture with Time-Reversal Dichroism in Photoelectron Angular Distributions.

While spin-resolved ARPES probes the spin component of entangled spin-orbital texture in multiorbital systems, it is unambiguously demonstrate that TRDAD reveals its orbital pseudospin texture counterpart.

Local Berry curvature signatures in dichroic angle-resolved photoelectron spectroscopy from two-dimensional materials

It is shown that circular dichroism angle-resolved photoelectron spectroscopy provides a powerful tool that can resolve the topological and quantum-geometrical character in momentum space and can be extended to address topological properties in materials out of equilibrium in a time-resolving fashion.

How Circular Dichroism in Time- and Angle-Resolved Photoemission Can Be Used to Spectroscopically Detect Transient Topological States in Graphene

Pumping graphene with circularly polarized light is the archetype of light-tailoring topological bands. Realizing the induced Floquet-Chern insulator state and tracing clear experimental manifestions

Importance of Matrix Elements in the ARPES Spectra of BISCO

We have carried out extensive first-principles angle-resolved photointensity (ARPES) simulations in Bi2212 wherein the photoemission process is modelled realistically by taking into account the full

Orbital characters determined from Fermi surface intensity patterns using angle-resolved photoemission spectroscopy

In order to determine the orbital characters on the various Fermi surface pockets of the Fe-based superconductors Ba0.6K0.4Fe2As2 and FeSe0.45Te0.55, we introduce a method to calculate photoemission

Probing the Electronic Structure of Complex Systems by ARPES

Angle-resolved photoemission spectroscopy (ARPES) is one of the most direct methods of studying the electronic structure of solids. By measuring the kinetic energy and angular distribution of the

Three-dimensional band structure of layered TiTe{sub 2}: Photoemission final-state effects

Three-dimensional band structure of unoccupied and occupied states of the prototype layered material TiTe2 is determined focusing on the ! A line of the Brillouin zone. Dispersions and lifetimes of

Studying local Berry curvature in 2H-WSe2 by circular dichroism photoemission utilizing crystal mirror plane

The CD-ARPES experimental procedure described provides a method for mapping Berry curvature in the momentum space of topological materials, such as Weyl semimetals, through a comparison of the CD-arpES data for the two experimental geometries.