Spatially resolved ultrafast magnetic dynamics launched at a complex-oxide hetero-interface

M. Först, A. D. Caviglia, R. Scherwitzl, R. Mankowsky, P. Zubko, V. Khanna, H. Bromberger, S. B. Wilkins, Y. -D. Chuang, W. S. Lee, W. F. Schlotter, J. J. Turner, G. L. Dakovski, M. P. Minitti, J. Robinson, S. R. Clark, D. Jaksch, J. -M. Triscone, J. P. Hill, S. S. Dhesi & 1 others A. Cavalleri

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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 hetero-interfaces dynamically. Here, by exciting large amplitude infrared-active vibrations in a LaAlO3 substrate we induce magnetic order melting in a NdNiO3 film across a hetero-interface. Femtosecond Resonant Soft X-ray Diffraction is used to determine the spatial and temporal evolution of the magnetic disordering. We observe a magnetic melt front that grows from the substrate interface into the film, at a speed that suggests electronically driven propagation. Light control and ultrafast phase front propagation at hetero-interfaces may lead to new opportunities in optomagnetism, for example by driving domain wall motion to transport information across suitably designed devices.
Original languageEnglish
Pages (from-to)883–888
Number of pages7
JournalNature Materials
Volume14
Early online date6 Jul 2015
DOIs
Publication statusPublished - Sep 2015

Fingerprint

Oxides
oxides
Domain walls
Substrates
Crystal lattices
Electronic properties
Heterojunctions
Magnetic properties
Melting
Infrared radiation
Engineers
X ray diffraction
propagation
crystal lattices
engineers
domain wall
melting
magnetic properties
vibration
electronics

Keywords

  • cond-mat.str-el
  • cond-mat.mtrl-sci

Cite this

Först, M., Caviglia, A. D., Scherwitzl, R., Mankowsky, R., Zubko, P., Khanna, V., ... Cavalleri, A. (2015). Spatially resolved ultrafast magnetic dynamics launched at a complex-oxide hetero-interface. Nature Materials, 14, 883–888. https://doi.org/10.1038/nmat4341

Spatially resolved ultrafast magnetic dynamics launched at a complex-oxide hetero-interface. / Först, M.; Caviglia, A. D.; Scherwitzl, R.; Mankowsky, R.; Zubko, P.; Khanna, V.; Bromberger, H.; Wilkins, S. B.; Chuang, Y. -D.; Lee, W. S.; Schlotter, W. F.; Turner, J. J.; Dakovski, G. L.; Minitti, M. P.; Robinson, J.; Clark, S. R.; Jaksch, D.; Triscone, J. -M.; Hill, J. P.; Dhesi, S. S.; Cavalleri, A.

In: Nature Materials, Vol. 14, 09.2015, p. 883–888.

Research output: Contribution to journalArticle

Först, M, Caviglia, AD, Scherwitzl, R, Mankowsky, R, Zubko, P, Khanna, V, Bromberger, H, Wilkins, SB, Chuang, Y-D, Lee, WS, Schlotter, WF, Turner, JJ, Dakovski, GL, Minitti, MP, Robinson, J, Clark, SR, Jaksch, D, Triscone, J-M, Hill, JP, Dhesi, SS & Cavalleri, A 2015, 'Spatially resolved ultrafast magnetic dynamics launched at a complex-oxide hetero-interface', Nature Materials, vol. 14, pp. 883–888. https://doi.org/10.1038/nmat4341
Först M, Caviglia AD, Scherwitzl R, Mankowsky R, Zubko P, Khanna V et al. Spatially resolved ultrafast magnetic dynamics launched at a complex-oxide hetero-interface. Nature Materials. 2015 Sep;14:883–888. https://doi.org/10.1038/nmat4341
Först, M. ; Caviglia, A. D. ; Scherwitzl, R. ; Mankowsky, R. ; Zubko, P. ; Khanna, V. ; Bromberger, H. ; Wilkins, S. B. ; Chuang, Y. -D. ; Lee, W. S. ; Schlotter, W. F. ; Turner, J. J. ; Dakovski, G. L. ; Minitti, M. P. ; Robinson, J. ; Clark, S. R. ; Jaksch, D. ; Triscone, J. -M. ; Hill, J. P. ; Dhesi, S. S. ; Cavalleri, A. / Spatially resolved ultrafast magnetic dynamics launched at a complex-oxide hetero-interface. In: Nature Materials. 2015 ; Vol. 14. pp. 883–888.
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