Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV4 S8

P. Padmanabhan, F. Sekiguchi, R. B. Versteeg, E. Slivina, V. Tsurkan, S. Bordács, I. Kézsmárki, P. H.M. Van Loosdrecht

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

GaV4S8 is a multiferroic semiconductor hosting magnetic cycloid (Cyc) and Néel-type skyrmion lattice (SkL) phases with a broad region of thermal and magnetic stability. Here, we use time-resolved magneto-optical Kerr spectroscopy to show the coherent generation of collective spin excitations in the Cyc and SkL phases. Our micromagnetic simulations reveal that these are driven by an optically induced modulation of uniaxial anisotropy. Our results shed light on spin dynamics in anisotropic materials hosting skyrmions and pave a new pathway for the optical manipulation of their magnetic order.

Original languageEnglish
Article number107203
JournalPhysical review letters
Volume122
Issue number10
DOIs
Publication statusPublished - Mar 15 2019

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cycloids
magnetization
spin dynamics
excitation
manipulators
thermal stability
modulation
anisotropy
spectroscopy
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Padmanabhan, P., Sekiguchi, F., Versteeg, R. B., Slivina, E., Tsurkan, V., Bordács, S., ... Van Loosdrecht, P. H. M. (2019). Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV4 S8. Physical review letters, 122(10), [107203]. https://doi.org/10.1103/PhysRevLett.122.107203

Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV4 S8. / Padmanabhan, P.; Sekiguchi, F.; Versteeg, R. B.; Slivina, E.; Tsurkan, V.; Bordács, S.; Kézsmárki, I.; Van Loosdrecht, P. H.M.

In: Physical review letters, Vol. 122, No. 10, 107203, 15.03.2019.

Research output: Contribution to journalArticle

Padmanabhan, P, Sekiguchi, F, Versteeg, RB, Slivina, E, Tsurkan, V, Bordács, S, Kézsmárki, I & Van Loosdrecht, PHM 2019, 'Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV4 S8', Physical review letters, vol. 122, no. 10, 107203. https://doi.org/10.1103/PhysRevLett.122.107203
Padmanabhan, P. ; Sekiguchi, F. ; Versteeg, R. B. ; Slivina, E. ; Tsurkan, V. ; Bordács, S. ; Kézsmárki, I. ; Van Loosdrecht, P. H.M. / Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV4 S8. In: Physical review letters. 2019 ; Vol. 122, No. 10.
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