Gianmarco Gatti^1*, Alberto Crepaldi^1*, 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), https://doi.org/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.

Materials Cloud sections using this data

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.

External references

Keywords

electronic structure topological materials trARPES SNSF ERC Experimental