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  Simulating Terahertz Field-Induced Ferroelectricity in Quantum Paraelectric SrTiO3

Shin, D., Latini, S., Schäfer, C., Sato, S., Baldini, E., de Giovannini, U., et al. (2022). Simulating Terahertz Field-Induced Ferroelectricity in Quantum Paraelectric SrTiO3. Physical Review Letters, 129(16): 167401. doi:10.1103/PhysRevLett.129.167401.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0008-A9F6-4 Versions-Permalink: https://hdl.handle.net/21.11116/0000-000B-F673-E
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PhysRevLett.129.167401.pdf (Verlagsversion), 855KB
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https://hdl.handle.net/21.11116/0000-000B-427A-2
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Open access publication funded by the Max Planck Society.
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2022
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© the Author(s). Published by the American Physical Society
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Supplementary_Materials.pdf (Ergänzendes Material), 7MB
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Supplemental Material: Coefficients for the 2D lattice potential; Solving Schrodinger-Langevin equation; Ferroelectric state in quantum parametric phase; Second harmonic generation from TDDFT; Frequency of FES mode; Effect of shape of THz pulse; Effect of highly excited FES mode on other modes
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https://arxiv.org/abs/2106.03957 (Preprint)
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https://doi.org/10.1103/PhysRevLett.129.167401 (Verlagsversion)
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 Urheber:
Shin, D.1, 2, Autor           
Latini, S.1, 2, Autor           
Schäfer, C.1, 2, 3, Autor           
Sato, S.1, 2, 4, Autor           
Baldini, E.5, Autor
de Giovannini, U.1, 2, 6, Autor           
Hübener, H.1, 2, Autor           
Rubio, A.1, 2, 7, 8, Autor           
Affiliations:
1Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
2Center for Free-Electron Laser Science, ou_persistent22              
3Department of Microtechnology and Nanoscience, MC2, Chalmers University of Technology, ou_persistent22              
4Center for Computational Sciences, University of Tsukuba, ou_persistent22              
5Department of Physics, University of Texas at Austin, ou_persistent22              
6Universitá degli Studi di Palermo, Dipartimento di Fisica e Chimica—Emilio Segrè, ou_persistent22              
7Nano-Bio Spectroscopy Group, Departamento de Fisica de Materiales, Universidad del Paìs Vasco UPV/EHU , ou_persistent22              
8Center for Computational Quantum Physics (CCQ), The Flatiron Institute, ou_persistent22              

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 Zusammenfassung: Recent experiments have demonstrated that light can induce a transition from the quantum paraelectric to the ferroelectric phase of SrTiO3. Here, we investigate this terahertz field-induced ferroelectric phase transition by solving the time-dependent lattice Schrödinger equation based on first-principles calculations. We find that ferroelectricity originates from a light-induced mixing between ground and first excited lattice states in the quantum paraelectric phase. In agreement with the experimental findings, our study shows that the nonoscillatory second harmonic generation signal can be evidence of ferroelectricity in SrTiO3. We reveal the microscopic details of this exotic phase transition and highlight that this phenomenon is a unique behavior of the quantum paraelectric phase.

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Sprache(n): eng - English
 Datum: 2022-04-192021-06-092022-09-012022-10-102022-10-14
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: arXiv: 2106.03957
DOI: 10.1103/PhysRevLett.129.167401
 Art des Abschluß: -

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Projektname : We are grateful for the discussions with Peter Littlewood, Antoine Georges, and Andrew Millis. We acknowledge financial support from the European Research Council (ERC-2015-AdG-694097), Grupos Consolidados (IT1249-19), JSPS KAKENHI Grant No. 20K14382, the Cluster of Excellence “CUI: Advanced Imaging of Matter” of the Deutsche Forschungsgemeinschaft (DFG)—EXC 2056—project ID 390715994, and Swedish Research Council (VR) through Grant No. 2016-06059. D. S. and S. L. are supported by Alexander von Humboldt Foundation. We also acknowledge support from the Max Planck-New York Center for Non-Equilibrium Quantum Phenomena. The Flatiron Institute is a division of the Simons Foundation.
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Quelle 1

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Titel: Physical Review Letters
  Kurztitel : Phys. Rev. Lett.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Woodbury, N.Y. : American Physical Society
Seiten: - Band / Heft: 129 (16) Artikelnummer: 167401 Start- / Endseite: - Identifikator: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1