An effective magnetic field from optically driven phonons

Nova, Tobia F.; Cartella, Andrea; Cantaluppi, Alice; Först, Michael; Bossini, Davide; Mikhaylovskiy, Rostislav V.; Kimel, Aleksei V.; Merlin, Roberto; Cavalleri, Andrea

An effective magnetic field from optically driven phonons

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Datum

2017

Autor:innen

Nova, Tobia F.

Cartella, Andrea

Cantaluppi, Alice

Först, Michael

Bossini, Davide

Mikhaylovskiy, Rostislav V.

Kimel, Aleksei V.

Merlin, Roberto

Cavalleri, Andrea

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Nature Physics. Springer Nature. 2017, 13, pp. 132-136. ISSN 1745-2473. eISSN 1745-2481. Available under: doi: 10.1038/nphys3925

Zusammenfassung

Light fields at terahertz and mid-infrared frequencies allow for the direct excitation of collective modes in condensed matter, which can be driven to large amplitudes. For example, excitation of the crystal lattice1,2 has been shown to stimulate insulator–metal transitions3,4, melt magnetic order5,6 or enhance superconductivity7,8,9. Here, we generalize these ideas and explore the simultaneous excitation of more than one lattice mode, which are driven with controlled relative phases. This nonlinear mode mixing drives rotations as well as displacements of the crystal-field atoms, mimicking the application of a magnetic field and resulting in the excitation of spin precession in the rare-earth orthoferrite ErFeO₃. Coherent control of lattice rotations may become applicable to other interesting problems in materials research—for example, as a way to affect the topology of electronic phases.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

NOVA, Tobia F., Andrea CARTELLA, Alice CANTALUPPI, Michael FÖRST, Davide BOSSINI, Rostislav V. MIKHAYLOVSKIY, Aleksei V. KIMEL, Roberto MERLIN, Andrea CAVALLERI, 2017. An effective magnetic field from optically driven phonons. In: Nature Physics. Springer Nature. 2017, 13, pp. 132-136. ISSN 1745-2473. eISSN 1745-2481. Available under: doi: 10.1038/nphys3925

BibTex

@article{Nova2017effec-53332,
  year={2017},
  doi={10.1038/nphys3925},
  title={An effective magnetic field from optically driven phonons},
  volume={13},
  issn={1745-2473},
  journal={Nature Physics},
  pages={132--136},
  author={Nova, Tobia F. and Cartella, Andrea and Cantaluppi, Alice and Först, Michael and Bossini, Davide and Mikhaylovskiy, Rostislav V. and Kimel, Aleksei V. and Merlin, Roberto and Cavalleri, Andrea}
}

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