Electrical detection of internal dynamical properties of domain walls

Sangiao, Soraya (Universidad de Zaragoza) ; Viret, Michel

Resumen: We report here on the electrical detection of the ferromagnetic resonance in a notched Py stripe using the spin rectification effect. A lock-in detection technique is used to measure the rectified voltage generated when applying a radio-frequency field. The multiple peaks associated with the presence of a domain wall, observed during field scans, are properly identified with the help of dynamical micromagnetic simulations. It is found that at any frequency below 6 GHz some specific areas of the inhomogeneous magnetization within the domain wall can find a resonant condition and generate a voltage by rectification of the induction currents in the circuit.

Idioma: Inglés

DOI: 10.1103/PhysRevB.89.104412

Año: 2014

Publicado en: Physical Review B. Condensed Matter and Materials Physics 89, 10 (2014), 104412 [6 pp]
ISSN: 1098-0121

Factor impacto JCR: 3.736 (2014)

Categ. JCR: PHYSICS, CONDENSED MATTER rank: 14 / 67 = 0.209 (2014) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/EC/FP7/301656/EU/FERROMAGNETIC RESONANCE AT THE ATOMIC SCALE/AtomicFMR

Tipo y forma: Artículo (Versión definitiva)

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