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  Spatially resolved ultrafast magnetic dynamics initiated at a complex oxide heterointerface

Först, M., Caviglia, A. D., Scherwitzl, R., Mankowsky, R., Zubko, P., Khanna, V., et al. (2015). Spatially resolved ultrafast magnetic dynamics initiated at a complex oxide heterointerface. Nature Materials, 14(9), 883-888. doi:10.1038/nmat4341.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-1341-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-0B25-2
Genre: Journal Article

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http://dx.doi.org/10.1038/nmat4341 (Publisher version)
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 Creators:
Först, Michael1, 2, Author              
Caviglia, A. D.3, Author
Scherwitzl, R.4, Author
Mankowsky, Roman1, 2, Author              
Zubko, P.4, Author
Khanna, Vikaran1, 5, 6, Author              
Bromberger, Hubertus1, 2, Author              
Wilkins, S. B.7, Author
Chuang, Y.-D.8, Author
Lee, W. S.9, Author
Schlotter, W. F.10, Author
Turner, J. J.10, Author
Dakovski, G. L.10, Author
Minitti, M. P.10, Author
Robinson, J.10, Author
Clark, S. R.6, 11, Author
Jaksch, D.6, 11, Author
Triscone, J. -M.4, Author
Hill, J. P.7, Author
Dhesi, S. S.5, Author
Cavalleri, Andrea1, 2, 6, Author               more..
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              
3Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands, ou_persistent22              
4Department of Quantum Matter Physics, Université de Genève, 1211 Genève, Switzerland, ou_persistent22              
5Diamond Light Source, Didcot OX11 0DE, UK, ou_persistent22              
6Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, UK, ou_persistent22              
7Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA, ou_persistent22              
8Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720, USA, ou_persistent22              
9The Stanford Institute for Materials and Energy Sciences (SIMES), Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory and Stanford University, Menlo Park, California 94025, USA, ou_persistent22              
10Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory, Menlo Park, California 94025, USA, ou_persistent22              
11Centre for Quantum Technologies, National University of Singapore, Singapore 117543, Singapore, ou_persistent22              

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 Abstract: Static strain in complex oxide heterostructures has been extensively used to engineer electronic and magnetic properties at equilibrium. In the same spirit, deformations of the crystal lattice with light may be used to achieve functional control across heterointerfaces dynamically. Here, by exciting large-amplitude infrared-active vibrations in a LaAlO3 substrate we induce magnetic order melting in a NdNiO3 film across a heterointerface. Femtosecond resonant soft X-ray diffraction is used to determine the spatiotemporal evolution of the magnetic disordering. We observe a magnetic melt front that propagates from the substrate interface into the film, at a speed that suggests electronically driven motion. Light control and ultrafast phase front propagation at heterointerfaces may lead to new opportunities in optomagnetism, for example by driving domain wall motion to transport information across suitably designed devices.

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Language(s): eng - English
 Dates: 2014-03-192015-06-012015-07-062015-08-24
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1038/nmat4341
arXiv: 1505.00601
 Degree: -

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Title: Nature Materials
  Abbreviation : Nat. Mater.
Source Genre: Journal
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Publ. Info: London, UK : Nature Pub. Group
Pages: - Volume / Issue: 14 (9) Sequence Number: - Start / End Page: 883 - 888 Identifier: ISSN: 1476-1122
CoNE: /journals/resource/111054835734000