Identification of a large number of spin-wave Eigenmodes excited by parametric pumping in Yttrium iron garnet microdisks

Srivastava, T. ; Merbouche, H. ; Ngouagnia Yemeli, I. ; Beaulieu, N. ; Ben Youssef, J. ; Muñoz, M. ; Che, P. ; Bortolotti, P. ; Cros, V. ; Klein, O. ; Sangiao, S. (Universidad de Zaragoza) ; De Teresa, J.M. (Universidad de Zaragoza) ; Demokritov, S.O. ; Demidov, V.E. ; Anane, A. ; Serpico, C. ; d’Aquino, M. ; de Loubens, G.

Resumen: We present the parametric excitation of spin-wave modes in yttrium iron garnet (YIG) microdisks via parallel pumping. Their spectroscopy is performed using magnetic resonance force microscopy (MRFM), while their spatial profiles are determined by microfocus Brillouin light scattering (BLS). We observe that almost all the fundamental eigenmodes of an in-plane magnetized YIG microdisk, calculated using a micromagnetic eigenmode solver, can be excited using the parallel pumping scheme, as opposed to the transverse one. A comparison between the MRFM and BLS data on the one hand, and the simulations on the other hand, provides the complete spectroscopic labeling of over 40 parametrically excited modes. Our findings could be promising for spin-wave-based computation schemes, in which the amplitudes of a large number of spin-wave modes have to be controlled.

Idioma: Inglés

DOI: 10.1103/PhysRevApplied.19.064078

Año: 2023

Publicado en: Physical Review Applied 19, 6 (2023), 064078 [8 pp.]
ISSN: 2331-7019

Factor impacto JCR: 3.8 (2023)

Categ. JCR: PHYSICS, APPLIED rank: 54 / 179 = 0.302 (2023) - Q2 - T1

Factor impacto CITESCORE: 7.8 - Physics and Astronomy (all) (Q1)

Factor impacto SCIMAGO: 1.335 - Physics and Astronomy (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/EC/H2020/899646/EU/k-space Neural computation with magnEtic exciTations/k-NET

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)