Unit
Group SCI SB HD
GroupRelated publications (122)
High-throughput screening of Weyl semimetals
Nicola Marzari, Davide Campi, Davide Grassano
Topological Weyl semimetals represent a novel class of nontrivial materials, where band crossings with linear dispersions take place at generic momenta across reciprocal space. These crossings give rise to low -energy properties akin to those of Weyl fermi ...
College Pk2024Murunskite - a new class of functional material
The subject of the present work is discovery and in-depth characterization of a new class of functional materials. Tuning of the bond polarity and orbital occupation with a goal of establishing balance between localization and delocalization of electrons - ...
EPFL2023Dissipative boundary state preparation
We devise a generic and experimentally accessible recipe to prepare boundary states of topological or non topological quantum systems through an interplay between coherent Hamiltonian dynamics and local dissipation. Intuitively, our recipe harnesses the sp ...
College Pk2023Phase of Topological Lattice with Leaky Guided Mode Resonance
Kirsten Emilie Moselund, Chang Won Lee
Topological nature in different areas of physics and electronics has often been characterized and controlled through topological invariants depending on the global properties of the material. The validity of bulk-edge correspondence and symmetry-related to ...
Basel2023Field-induced ultrafast modulation of Rashba coupling at room temperature in ferroelectric alpha-GeTe(111)
Rashba materials have appeared as an ideal playground for spin-to-charge conversion in prototype spintronics devices. Among them, alpha-GeTe(111) is a non-centrosymmetric ferroelectric semiconductor for which a strong spin-orbit interaction gives rise to g ...
NATURE PORTFOLIO2022Hidden bulk and surface effects in the spin polarization of the nodal-line semimetal ZrSiTe
Marco Grioni, Arnaud Magrez, Oleg Yazyev, Daniel Gosalbez Martinez, Helmuth Berger, Alberto Crepaldi, Mauro Fanciulli, Gianmarco Gatti
Local inversion symmetry breaking in centrosymmetric materials can lead to large spin polarization of the electronic band structure in separate sectors of the unit cell. Here, the authors reveal such hidden spin polarisation in ZrSiTe using spin and angle ...
NATURE RESEARCH2021Experimental studies of the equilibrium and out-of-equilibrium electronic structure of non-symmorphic topological materials
Symmetry and topology are fundamental properties of nature. Mathematics provides us with a general framework to understand these concepts. On one side, symmetry describes the invariance properties of an object for specific transformations. On the other sid ...
EPFL2020Large magnetoresistance and nonzero Berry phase in the nodal-line semimetal MoO2
Oleg Yazyev, Quansheng Wu, Shengnan Zhang, Huancheng Chen
We performed calculations of the electronic band structure and the Fermi surface as well as measured the longitudinal resistivity rho(xx)(T,H), Hall resistivity rho(xy)(T,H), and quantum oscillations of the magnetization as a function of temperature at var ...
2020Light-Induced Renormalization of the Dirac Quasiparticles in the Nodal-Line Semimetal ZrSiSe
Majed Chergui, Marco Grioni, Arnaud Magrez, Helmuth Berger, Philippe Bugnon, Alberto Crepaldi, Luca Moreschini, Simon Karl Moser, Gianmarco Gatti, Serhii Polishchuk
In nodal-line semimetals, linearly dispersing states form Dirac loops in the reciprocal space with a high degree of electron-hole symmetry and a reduced density of states near the Fermi level. The result is reduced electronic screening and enhanced correla ...
2020Radial Spin Texture of the Weyl Fermions in Chiral Tellurium
Majed Chergui, Henrik Moodysson Rønnow, Marco Grioni, Oleg Yazyev, Luc Testa, Daniel Gosalbez Martinez, Philippe Bugnon, Alberto Crepaldi, Luca Moreschini, Mauro Fanciulli, Simon Karl Moser, Gianmarco Gatti, Serhii Polishchuk
Trigonal tellurium, a small-gap semiconductor with pronounced magneto-electric and magneto-optical responses, is among the simplest realizations of a chiral crystal. We have studied by spin- and angle-resolved photoelectron spectroscopy its unconventional ...
AMER PHYSICAL SOC2020