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  Multiple supersonic phase fronts launched at a complex-oxide hetero-interface

Först, M., Beyerlein, K., Mankowsky, R., Hu, W., Mattoni, G., Catalano, S., et al. (2017). Multiple supersonic phase fronts launched at a complex-oxide hetero-interface. Physical Review Letters, 118(2): 027401. doi:10.1103/PhysRevLett.118.027401.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-1AF3-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-F503-7
Genre: Journal Article

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 Creators:
Först, Michael1, 2, Author              
Beyerlein, K.R.2, 3, Author
Mankowsky, Roman1, 2, Author              
Hu, Wanzheng1, 2, Author              
Mattoni, G.4, Author
Catalano, S.5, Author
Gibert, M.5, Author
Yefanov, O.2, 3, Author
Clark, J.N.2, 6, Author
Frano, A.7, 8, Author
Glownia, J.M.9, Author
Chollet, M.9, Author
Lemke, H.9, Author
Moser, B.10, Author
Collins, S.P.10, Author
Dhesi, S.S.10, Author
Caviglia, A.D.4, Author
Triscone, J.-M.5, Author
Cavalleri, Andrea1, 2, 11, Author              
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
2Center for Free-Electron Laser Science, 22761 Hamburg, Germany, ou_persistent22              
3Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany, ou_persistent22              
4Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands, ou_persistent22              
5Department of Quantum Matter Physics, Université de Genève, 1211 Genève, Switzerland, ou_persistent22              
6Stanford Pulse Institute, SLAC National Accelerator Laboratory, Menlo Park 94025, California, USA, ou_persistent22              
7Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley 94720, California, USA, ou_persistent22              
8Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley 94720, California, USA, ou_persistent22              
9Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park 94025, California, USA, ou_persistent22              
10Diamond Light Source, Didcot, Oxfordshire OX11 0QX, UK, ou_persistent22              
11Department of Physics, Clarendon Laboratory, University of Oxford, ou_persistent22              

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 Abstract: Selective optical excitation of a substrate lattice can drive phase changes across heterointerfaces. This phenomenon is a non-equilibrium analogue of static strain control in heterostructures and may lead to new applications in optically controlled phase change devices. Here, we make use of time-resolved non-resonant and resonant x-ray diffraction to clarify the underlying physics, and to separate different microscopic degrees of freedom in space and time. We measure the dynamics of the lattice and that of the charge disproportionation in NdNiO3, when an insulator-metal transition is driven by coherent lattice distortions in the LaAlO3 substrate. We find that charge redistribution propagates at supersonic speeds from the interface into the NdNiO3 film, followed by a sonic lattice wave. When combined with measurements of magnetic disordering and of the metal-insulator transition, these results establish a hierarchy of events for ultrafast control at complex oxide hetero-interfaces.

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Language(s): eng - English
 Dates: 2016-12-072017-01-092017-01-09
 Publication Status: Published in print
 Pages: 20
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.118.027401
arXiv: 1612.04089
 Degree: -

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Project name : Q-MAC
Grant ID : 319286
Funding program : Funding Programme 7 (FP7)
Funding organization : European Commission (EC)

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Affiliations:
Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 118 (2) Sequence Number: 027401 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1