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Light-induced renormalization of the Dirac quasiparticles in the nodal-line semimetal ZrSiSe

Gianmarco Gatti1*, Alberto Crepaldi1*, Michele Puppin2, Nicolas Tancogne-Dejean3, Lede Xian3, Umberto De Giovannini3, Silvan Roth1, Serhii Polishchuk2, Philippe Bugnon1, Arnaud Magrez1, Helmuth Berger1, Fabio Frassetto4, Luca Poletto4, Luca Moreschini5, Simon Moser5, Aaron Bostwick5, Eli Rotenberg5, Angel Rubio3, Majed Chergui2, Marco Grioni1

1 Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland

2 Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland

3 Max Planck Institute for the Structure and Dynamics of Matter and Center for Free-Electron Laser Science, Luruper Chaussee 149, Hamburg 22761, Germany

4 National Research Council-Institute for Photonics and Nanotechnologies (CNR-IFN), via Trasea 7, 35131 Padova, Italy

5 Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

* Corresponding authors emails: gianmarco.gatti@unige.ch, alberto.crepaldi@epfl.ch
DOI10.24435/materialscloud:hh-c1 [version v1]

Publication date: Jul 28, 2021

How to cite this record

Gianmarco Gatti, Alberto Crepaldi, Michele Puppin, Nicolas Tancogne-Dejean, Lede Xian, Umberto De Giovannini, Silvan Roth, Serhii Polishchuk, Philippe Bugnon, Arnaud Magrez, Helmuth Berger, Fabio Frassetto, Luca Poletto, Luca Moreschini, Simon Moser, Aaron Bostwick, Eli Rotenberg, Angel Rubio, Majed Chergui, Marco Grioni, Light-induced renormalization of the Dirac quasiparticles in the nodal-line semimetal ZrSiSe, Materials Cloud Archive 2021.122 (2021), doi: 10.24435/materialscloud:hh-c1.

Description

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 correlations between Dirac quasiparticles. Here we investigate the electronic structure of ZrSiSe, by combining time- and angle-resolved photoelectron spectroscopy with ab initio density functional theory (DFT) complemented by an extended Hubbard model (DFT+U+V) and by time-dependent DFT+U+V. We show that electronic correlations are reduced on an ultrashort timescale by optical excitation of high-energy electrons-hole pairs, which transiently screen the Coulomb interaction. Our findings demonstrate an all-optical method for engineering the band structure of a quantum material. This record contains the ARPES raw data in txt format used to create the figures in the referenced publication.

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Files

File name Size Description
Data_Figure 1.zip
MD5md5:776c5f40be9028e390910391a27cfecb
4.3 MiB Txt files associated the experimental data shown in Figure 1
Metadata_Figure1.rtf
MD5md5:59f44b2a365f9397fdb6bb2c78ecd059
775 Bytes RTF file describing the data format for data of Fig.1
Data_Figure 2.zip
MD5md5:2142b8c6627cb2313435ac9176bd9a97
1.2 MiB Txt files associated the experimental data shown in Figure 2
Metadata_Figure2.rtf
MD5md5:c293545de6f6b456075dabb6d873feb3
775 Bytes RTF file describing the data format for data of Fig.2
Data_Figure 3.zip
MD5md5:2e59e4e731e12a7014a4687a58054838
5.8 MiB Txt files associated the experimental data shown in Figure 3
Metadata_Figure3.rtf
MD5md5:abbea8f6aecd367a3cc78967afcee605
1.0 KiB RTF file describing the data format for data of Fig.3

License

Files and data are licensed under the terms of the following license: Creative Commons Attribution 4.0 International.
Metadata, except for email addresses, are licensed under the Creative Commons Attribution Share-Alike 4.0 International license.

Keywords

electronic structure topological materials trARPES SNSF ERC Experimental

Version history:

2021.122 (version v1) [This version] Jul 28, 2021 DOI10.24435/materialscloud:hh-c1