Optically induced transient enhancement of a structural order parameter
1 Swiss Light Source, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
2 Materials Theory, ETH Zürich, 8093 Zürich, Switzerland
3 Max Planck Institute for the Structure and Dynamics of Matter, CFEL, 22761 Hamburg, Germany
4 Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland
5 SwissFEL, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
6 LCLS, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
7 Department of Chemistry and Biochemistry, University of Bern, 3012 Bern, Switzerland
Published online: 16 April 2019
We photoexcite SrTiO3 and EuTiO3 in their purely soft-mode-driven structurally distorted phase and trace the structural order parameter via ultra-short x-rays. We observe a rapid decay for SrTiO3 and an intriguing transient enhancement for EuTiO3.
© The Authors, published by EDP Sciences, 2019
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