Ultrafast frustration-breaking and magnetophononic driving of singlet excitations in a quantum magnet
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{
"revision": 5,
"id": "1899",
"created": "2023-09-13T08:20:24.226165+00:00",
"metadata": {
"doi": "10.24435/materialscloud:tm-4t",
"status": "published",
"title": "Ultrafast frustration-breaking and magnetophononic driving of singlet excitations in a quantum magnet",
"mcid": "2023.156",
"license_addendum": null,
"_files": [
{
"description": "Description of the files and data inside the archive dataset.tar.gz",
"key": "README.txt",
"size": 6080,
"checksum": "md5:1020ce763d50a0674f995c7f7bbb2e07"
},
{
"description": "Archive containing the raw data to reproduce the results and the figures reported in the publication",
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"owner": 53,
"_oai": {
"id": "oai:materialscloud.org:1899"
},
"keywords": [
"Magnetophononic",
"Strongly correlated electrons",
"Tera-hertz pump and probe",
"Quantum magnetic materials",
"H2020",
"MARVEL/P4",
"SNSF"
],
"conceptrecid": "1075",
"is_last": true,
"references": [
{
"type": "Preprint",
"url": "https://arxiv.org/abs/2101.01189",
"comment": "Preprint where the data and the results are analyzed and discussed",
"citation": "F. Giorgianni et al., arXiv:2101.01189 (2021)"
},
{
"type": "Journal reference",
"doi": "10.1103/PhysRevB.107.184440",
"url": "https://doi.org/10.1103/PhysRevB.107.184440",
"comment": "Paper where the data and the results are analyzed and discussed",
"citation": "F. Giorgianni et al., PRB 107, 184440 (2023)"
}
],
"publication_date": "Oct 17, 2023, 09:56:55",
"license": "Creative Commons Attribution 4.0 International",
"id": "1899",
"description": "Ideal magnetic frustration forms the basis for the emergence of exotic quantum spin states that are entirely nonmagnetic. Such singlet spin states are the defining feature of the Shastry-Sutherland model, and of its faithful materials realization in the quantum antiferromagnet SrCu\u2082(BO\u2083)\u2082. To address these states on ultrafast timescales, despite their lack of any microscopic order parameter, we introduce a nonlinear magnetophononic mechanism to alter the quantum spin dynamics by driving multiple optical phonon modes coherently and simultaneously. We apply intense terahertz pulses to create a nonequilibrium modulation of the magnetic interactions that breaks the ideal frustration of SrCu\u2082(BO\u2083)\u2082, such that previously forbidden physics can be driven in a coherent manner. Specifically, this driving populates a purely magnetic excitation, the singlet branch of the two-triplon bound state, by resonance with the difference frequency of two pumped phonons. Our results demonstrate how light-driven phonons can be used for the ultrafast and selective manipulation of interactions in condensed matter, even at frequencies far from those of the pump spectrum, offering valuable additional capabilities for the dynamical control of quantum many-body phenomena.",
"version": 2,
"contributors": [
{
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland."
],
"familyname": "Giorgianni",
"givennames": "Flavio"
},
{
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland.",
"Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva 4, Switzerland.",
"Department of Molecular Sciences and Nanosystems, Ca\u2019 Foscari University of Venice, 30172 Venezia Mestre, Italy."
],
"familyname": "Wehinger",
"givennames": "Bj\u00f6rn"
},
{
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland.",
"Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva 4, Switzerland."
],
"familyname": "Allenspach",
"givennames": "Stephan"
},
{
"email": "nicola.colonna@psi.ch",
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland.",
"National Centre for Computational Design and Discovery of Novel Materials (MARVEL), Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland"
],
"familyname": "Colonna",
"givennames": "Nicola"
},
{
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland."
],
"familyname": "Vicario",
"givennames": "Carlo"
},
{
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland.",
"Max Planck Institute for Solid State Research, Heisenbergstrasse1, 70569 Stuttgart, Germany."
],
"familyname": "Puphal",
"givennames": "Pascal"
},
{
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland."
],
"familyname": "Pomjakushina",
"givennames": "Ekaterina"
},
{
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland.",
"Lehrstuhl f\u00fcr Theoretische Physik I, Technische Universit\u00e4t Dortmund, Otto-Hahn-Strasse 4, 44221 Dortmund, Germany",
"Institute of Physics, Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland"
],
"familyname": "Normand",
"givennames": "Bruce"
},
{
"affiliations": [
"Paul Scherrer Institute, CH-5232 Villigen-PSI, Switzerland.",
"Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva 4, Switzerland.",
"Institute of Physics, Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland",
"Institute of Quantum Electronics, ETH Z\u00fcrich, CH-8093 H\u00f6nggerberg, Switzerland."
],
"familyname": "R\u00fcegg",
"givennames": "Christian"
}
],
"edited_by": 576
},
"updated": "2023-10-17T07:56:55.104908+00:00"
}