Non-equilibrium pathways to emergent polar supertextures.

Autor: Stoica VA; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA. vxs30@psu.edu.; Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA. vxs30@psu.edu., Yang T; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA.; Interdisciplinary Research Centre, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China., Das S; Materials Research Centre, Indian Institute of Science, Bangalore, India., Cao Y; Materials Science Division, Argonne National Laboratory, Lemont, IL, USA., Wang HH; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA., Kubota Y; Japan Synchrotron Radiation Research Institute, Sayo, Japan.; RIKEN SPring-8 Center, Sayo, Japan., Dai C; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA., Padma H; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA., Sato Y; Institute for Solid State Physics, The University of Tokyo, Kashiwa, Japan., Mangu A; Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA., Nguyen QL; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.; Stanford PULSE Institute, SLAC National Accelerator Laboratory & Stanford University, Menlo Park, CA, USA., Zhang Z; Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA., Talreja D; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA., Zajac ME; Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA., Walko DA; Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA., DiChiara AD; Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA., Owada S; Japan Synchrotron Radiation Research Institute, Sayo, Japan.; RIKEN SPring-8 Center, Sayo, Japan., Miyanishi K; RIKEN SPring-8 Center, Sayo, Japan., Tamasaku K; Japan Synchrotron Radiation Research Institute, Sayo, Japan.; RIKEN SPring-8 Center, Sayo, Japan., Sato T; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA., Glownia JM; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA., Esposito V; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA., Nelson S; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA., Hoffmann MC; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA., Schaller RD; Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL, USA., Lindenberg AM; Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA.; Stanford PULSE Institute, SLAC National Accelerator Laboratory & Stanford University, Menlo Park, CA, USA.; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, USA., Martin LW; Department of Materials Science and Engineering & Department of Physics, University of California, Berkeley, CA, USA.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.; Rice University, Houston, TX, USA., Ramesh R; Department of Materials Science and Engineering & Department of Physics, University of California, Berkeley, CA, USA.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.; Rice University, Houston, TX, USA., Matsuda I; Institute for Solid State Physics, The University of Tokyo, Kashiwa, Japan., Zhu D; Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA., Chen LQ; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA., Wen H; Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA. wen@anl.gov.; Materials Science Division, Argonne National Laboratory, Lemont, IL, USA. wen@anl.gov., Gopalan V; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA. vxg8@psu.edu., Freeland JW; Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA. freeland@anl.gov.
Jazyk: angličtina
Zdroj: Nature materials [Nat Mater] 2024 Oct; Vol. 23 (10), pp. 1394-1401. Date of Electronic Publication: 2024 Sep 24.
DOI: 10.1038/s41563-024-01981-2
Abstrakt: Ultrafast stimuli can stabilize metastable states of matter inaccessible by equilibrium means. Establishing the spatiotemporal link between ultrafast excitation and metastability is crucial to understand these phenomena. Here we utilize single-shot optical pump-X-ray probe measurements to capture snapshots of the emergence of a persistent polar vortex supercrystal in a heterostructure that hosts a fine balance between built-in electrostatic and elastic frustrations by design. By perturbing this balance with photoinduced charges, an initially heterogeneous mixture of polar phase disorders within a few picoseconds, leading to a state composed of disordered ferroelectric and suppressed vortex orders. On the picosecond-nanosecond timescales, transient labyrinthine fluctuations develop, accompanied by the recovery of the vortex order. On longer timescales, these fluctuations are progressively quenched by dynamical strain modulations, which drive the collective emergence of a single vortex supercrystal phase. Our results, corroborated by dynamical phase-field modelling, reveal non-equilibrium pathways following the ultrafast excitation of designer systems to persistent metastability.
(© 2024. UChicago Argonne, LLC, Operator of Argonne National Laboratory, and the Authors, under exclusive licence to Springer Nature Limited.)
Databáze: MEDLINE
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