التفاصيل البيبلوغرافية
| العنوان: |
Photoinduced structural dynamics of multiferroic TbMnO3 |
| المؤلفون: |
Abreu, Elsa, id_orcid:0 000-0002-8348-376X, Savoini, Matteo, Boie, Larissa, id_orcid:0 000-0002-1991-3980, Beaud, Paul, Esposito, Vincent, Kubli, Martin, Neugebauer, Martin J., Porer, Michael, Staub, Urs, Burganov, Bulat, Dornes, Christian, Rodriguez-Fernandez, Angel, Huber, Lucas, Lantz, Gabriel, Mardegan, José R.L., Parchenko, Sergii, Rittmann, Jochen, Svetina, Cris, Ingold, Gerhard, Johnson, Steven, id_orcid:0 000-0001-6074-4894 |
| بيانات النشر: |
ETH Zurich |
| سنة النشر: |
2023 |
| المجموعة: |
ETH Zürich Research Collection |
| الوصف: |
We use time-resolved hard x-ray diffraction to investigate the structural dynamics of the multiferroic insulator TbMnO3 in the low-temperature antiferromagnetic and ferroelectrically ordered phase. The lattice response following photoexcitation at 1.55 eV is detected by measuring the (0 2 4) and (1 3 -5) Bragg reflections. A 0.022% tensile strain, normal to the surface, is seen to arise within 20-40 ps. The magnitude of this transient strain is over an order of magnitude lower than that predicted from laser-induced heating, which we attribute to a bottleneck in the energy transfer between the electronic and lattice subsystems. The timescale for the transient expansion is consistent with that of previously reported demagnetization dynamics. We discuss a possible relationship between structural and demagnetization dynamics in TbMnO3, in which photoinduced atomic motion modulates the exchange interaction, leading to a destruction of the magnetic order in the system. |
| نوع الوثيقة: |
dataset |
| وصف الملف: |
application/text/plain; application/application/x-matlab-data; application/application/zip |
| اللغة: |
English |
| Relation: |
http://hdl.handle.net/20.500.11850/587465 |
| DOI: |
10.3929/ethz-b-000587465 |
| الاتاحة: |
https://hdl.handle.net/20.500.11850/587465
https://doi.org/10.3929/ethz-b-000587465 |
| Rights: |
info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by-sa/4.0/ ; Creative Commons Attribution-ShareAlike 4.0 International |
| رقم الانضمام: |
edsbas.4778CE6E |
| قاعدة البيانات: |
BASE |