Optically Driven Collective Spin Excitations and Magnetization Dynamics in the N&eacute;el-type Skyrmion Host GaV4 S8

Padmanabhan Prashant; Sekiguchi Fumiya; Versteeg Rolf B.; Slivina Evgeniia; Tsurkan Vladimir; Bordacs Sandor; Kezsmarki Istvan; Van Loosdrecht Paul H.M.M.

Conţinutul numărului revistei

Articolul precedent

Articolul urmator

586

SM ISO690:2012

PADMANABHAN, Prashant, SEKIGUCHI, Fumiya, VERSTEEG, Rolf B., SLIVINA, Evgeniia, TSURKAN, Vladimir, BORDACS, Sandor, KEZSMARKI, Istvan, VAN LOOSDRECHT, Paul H.M.M.. Optically Driven Collective Spin Excitations and Magnetization Dynamics in the Néel-type Skyrmion Host GaV4 S8. In: Physical Review Letters, 2019, nr. 10(122), p. 0. ISSN 0031-9007. DOI: https://doi.org/10.1103/PhysRevLett.122.107203

EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core

Physical Review Letters

Numărul 10(122) / 2019 / ISSN 0031-9007

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

DOI:https://doi.org/10.1103/PhysRevLett.122.107203

Pag. 0-0

Padmanabhan Prashant¹², Sekiguchi Fumiya¹, Versteeg Rolf B.¹, Slivina Evgeniia¹, Tsurkan Vladimir³⁴, Bordacs Sandor⁵⁶, Kezsmarki Istvan³⁵, Van Loosdrecht Paul H.M.M.¹

¹ University of Cologne,
² Los Alamos National Laboratory,
³ University of Augsburg,
⁴ Institute of Applied Physics,
⁵ Budapest University of Technology and Economics, Department of Physics, Budapest,
⁶ Hungarian Academy of Sciences

Disponibil în IBN: 25 martie 2019

Rezumat

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.

Cuvinte-cheie
Anisotropy, Binary alloys, magnetism, Semiconducting gallium compounds, Spin dynamics