Kinetics of a Phonon-Mediated Laser-Driven Structural Phase Transition in Sn<sub>2</sub>P<sub>2</sub>Se<sub>6</sub>
We investigate the structural dynamics of the incommensurately modulated phase of Sn<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula>P&l...
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| Language: | English |
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MDPI AG
2019-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/3/525 |
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| author | Martin Kubli Matteo Savoini Elsa Abreu Bulat Burganov Gabriel Lantz Lucas Huber Martin J. Neugebauer Larissa Boie Vincent Esposito Elisabeth M. Bothschafter Sergii Parchenko Sebastian Grübel Michael Porer Jochen Rittmann Paul Beaud Urs Staub Makina Yabashi Yoshikazu Tanaka Tetsuo Katayama Tadashi Togashi Anton A. Kohutych Yulian M. Vysochanskii Steven L. Johnson |
| author_facet | Martin Kubli Matteo Savoini Elsa Abreu Bulat Burganov Gabriel Lantz Lucas Huber Martin J. Neugebauer Larissa Boie Vincent Esposito Elisabeth M. Bothschafter Sergii Parchenko Sebastian Grübel Michael Porer Jochen Rittmann Paul Beaud Urs Staub Makina Yabashi Yoshikazu Tanaka Tetsuo Katayama Tadashi Togashi Anton A. Kohutych Yulian M. Vysochanskii Steven L. Johnson |
| author_sort | Martin Kubli |
| collection | DOAJ |
| description | We investigate the structural dynamics of the incommensurately modulated phase of Sn<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula>P<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula>Se<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>6</mn> </msub> </semantics> </math> </inline-formula> by means of time-resolved X-ray diffraction following excitation by an optical pump. Tracking the incommensurable distortion in the time domain enables us to identify the transport effects leading to a complete disappearance of the incommensurate phase over the course of 100 ns. These observations suggest that a thin surface layer of the high-temperature phase forms quickly after photo-excitation and then propagates into the material with a constant velocity of 3.7 m/s. Complementary static structural measurements reveal previously unreported higher-order satellite reflection in the incommensurate phase. These higher-order reflections are attributed to cubic vibrational terms in the Hamiltonian. |
| first_indexed | 2024-12-16T17:19:14Z |
| format | Article |
| id | doaj.art-891a422fb84d4a83b9b90e4b9d36b1cd |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-16T17:19:14Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-891a422fb84d4a83b9b90e4b9d36b1cd2022-12-21T22:23:12ZengMDPI AGApplied Sciences2076-34172019-02-019352510.3390/app9030525app9030525Kinetics of a Phonon-Mediated Laser-Driven Structural Phase Transition in Sn<sub>2</sub>P<sub>2</sub>Se<sub>6</sub>Martin Kubli0Matteo Savoini1Elsa Abreu2Bulat Burganov3Gabriel Lantz4Lucas Huber5Martin J. Neugebauer6Larissa Boie7Vincent Esposito8Elisabeth M. Bothschafter9Sergii Parchenko10Sebastian Grübel11Michael Porer12Jochen Rittmann13Paul Beaud14Urs Staub15Makina Yabashi16Yoshikazu Tanaka17Tetsuo Katayama18Tadashi Togashi19Anton A. Kohutych20Yulian M. Vysochanskii21Steven L. Johnson22Institute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandInstitute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandInstitute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandInstitute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandInstitute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandInstitute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandInstitute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandInstitute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandSwiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandSwiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandSwiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandSwiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandSwiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandSwiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandSwiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandSwiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, SwitzerlandRIKEN SPring-8 Center, Sayo-gun, Hyogo 679-5148, JapanRIKEN SPring-8 Center, Sayo-gun, Hyogo 679-5148, JapanRIKEN SPring-8 Center, Sayo-gun, Hyogo 679-5148, JapanRIKEN SPring-8 Center, Sayo-gun, Hyogo 679-5148, JapanInstitute for Physics and Chemistry of Solid State, Uzhgorod National University, 88000 Uzhgorod, UkraineInstitute for Physics and Chemistry of Solid State, Uzhgorod National University, 88000 Uzhgorod, UkraineInstitute for Quantum Electronics, Physics Departement, ETH Zurich, CH-8093 Zurich, SwitzerlandWe investigate the structural dynamics of the incommensurately modulated phase of Sn<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula>P<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula>Se<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>6</mn> </msub> </semantics> </math> </inline-formula> by means of time-resolved X-ray diffraction following excitation by an optical pump. Tracking the incommensurable distortion in the time domain enables us to identify the transport effects leading to a complete disappearance of the incommensurate phase over the course of 100 ns. These observations suggest that a thin surface layer of the high-temperature phase forms quickly after photo-excitation and then propagates into the material with a constant velocity of 3.7 m/s. Complementary static structural measurements reveal previously unreported higher-order satellite reflection in the incommensurate phase. These higher-order reflections are attributed to cubic vibrational terms in the Hamiltonian.https://www.mdpi.com/2076-3417/9/3/525structural dynamicstime-resolved diffractionferroelectricityincommensurate structurephase transition |
| spellingShingle | Martin Kubli Matteo Savoini Elsa Abreu Bulat Burganov Gabriel Lantz Lucas Huber Martin J. Neugebauer Larissa Boie Vincent Esposito Elisabeth M. Bothschafter Sergii Parchenko Sebastian Grübel Michael Porer Jochen Rittmann Paul Beaud Urs Staub Makina Yabashi Yoshikazu Tanaka Tetsuo Katayama Tadashi Togashi Anton A. Kohutych Yulian M. Vysochanskii Steven L. Johnson Kinetics of a Phonon-Mediated Laser-Driven Structural Phase Transition in Sn<sub>2</sub>P<sub>2</sub>Se<sub>6</sub> Applied Sciences structural dynamics time-resolved diffraction ferroelectricity incommensurate structure phase transition |
| title | Kinetics of a Phonon-Mediated Laser-Driven Structural Phase Transition in Sn<sub>2</sub>P<sub>2</sub>Se<sub>6</sub> |
| title_full | Kinetics of a Phonon-Mediated Laser-Driven Structural Phase Transition in Sn<sub>2</sub>P<sub>2</sub>Se<sub>6</sub> |
| title_fullStr | Kinetics of a Phonon-Mediated Laser-Driven Structural Phase Transition in Sn<sub>2</sub>P<sub>2</sub>Se<sub>6</sub> |
| title_full_unstemmed | Kinetics of a Phonon-Mediated Laser-Driven Structural Phase Transition in Sn<sub>2</sub>P<sub>2</sub>Se<sub>6</sub> |
| title_short | Kinetics of a Phonon-Mediated Laser-Driven Structural Phase Transition in Sn<sub>2</sub>P<sub>2</sub>Se<sub>6</sub> |
| title_sort | kinetics of a phonon mediated laser driven structural phase transition in sn sub 2 sub p sub 2 sub se sub 6 sub |
| topic | structural dynamics time-resolved diffraction ferroelectricity incommensurate structure phase transition |
| url | https://www.mdpi.com/2076-3417/9/3/525 |
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