High frequency properties of [Co/Pd]n/Py multilayer films under different temperatures

High frequency properties of exchange-coupled multilayers are important to develop future fast switching spintronic devices. Here, we report an experimental investigation of temperature-dependent high frequency properties in [Co/Pd]n/Py multilayer thin films. The results demonstrate that the linewid...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of applied physics 2019-08, Vol.126 (5)
Hauptverfasser: Wei, Yurui, Zhao, Chenbo, Wang, Xiangqian, Wu, Huiliang, Li, Xiaolei, Liu, Yueyue, Zeng, Zhaozhuo, Wang, Jianbo, Cao, Jiangwei, Liu, Qingfang
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:High frequency properties of exchange-coupled multilayers are important to develop future fast switching spintronic devices. Here, we report an experimental investigation of temperature-dependent high frequency properties in [Co/Pd]n/Py multilayer thin films. The results demonstrate that the linewidth varies with the number of cycles at room temperature. However, the damping slightly decreases with increasing repetitions of Co/Pd. By fitting the relationship between the linewidth and the angle (the out-of-plane azimuthal angle of the external magnetic field), we found that a similar two-magnetron scattering effect becomes stronger when the number of Co/Pd cycles increases. For the (Co/Pd)10/NiFe sample, the linewidth became larger at 9 GHz and 16 GHz with the decrease of temperature. Our findings help comprehend the high frequency properties of exchange-coupled multilayer thin films and are useful for fast switching magnetic devices.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.5101003