RT journal article
T1 Influence of Ar-assisted pulsed laser ablation on structural and magnetic properties of Fe80B20 thin films
A1 Soler-Morala, Jimena
A1 Fernández Jiménez, Rubén
A1 Braza Blanco, María Verónica
A1 Vázquez, Luis
A1 Fernández de los Reyes, Daniel
A1 Jiménez-Fernández, Sergio
A1 González Robledo, David
A1 Rubio Zuazo, Juan
A1 González, Jesús M.
A1 Palomares, Francisco Javier
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
A2 Física Aplicada
K1 Pulsed laser ablation
K1 Thin films
K1 Ar assistance
K1 FeB alloys
K1 Surface Morphology
K1 Nanostructuration
K1 Electron Microscopy
K1 Magnetic anisotropy
K1 Spin waves
AB We report on the chemical, structural and morphological modifications introduced in nanothick Fe80B20 films by the use of Ar assistance (at different pressures) during their pulsed laser ablation deposition process. As a reference, a film deposited in absence of Ar and under ultra-high vacuum conditions was also prepared. Samples were characterized from the measurement of X-ray photoelectron spectroscopy depth profiles, atomic force microscopy, and transmission electron microscopy as well as from the standpoint of their dc angular dependence of the hysteresis, high applied field magnetization and tens of GHz dynamics. Our results include i) the induction of surface roughening that increases with the assisting gas pressure, ii) the amorphousness of the ultra-high vacuum film, iii) the induction, by the Ar assistance, of partial crystallization, yielding Fe-rich columns whose transverse dimension increased with the Ar pressure, iv) the progressive isotropization of the in-plane hysteresis parameters associated to the increase of Ar pressure, v) the occurrence on the samples deposited with the largest Ar pressures of spin waves stiffness constant having a magnitude 20 times larger than the value measured in the reference sample, and vi) the decrease of the ferromagnetic resonance damping parameter with regard to the reference sample.
PB Elsevier
SN 0169-4332
YR 2026
FD 2026-02-15
LK http://hdl.handle.net/10498/39284
UL http://hdl.handle.net/10498/39284
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026