Ferromagnetic resonance and spin Hall magnetoresistance of Tm3Fe5O12 films
Yufeng Wang, Peng Zhou, Shuai Liu, Yajun Qi, Tianjin Zhang
TL;DR
This study investigates the magnetic properties and spin transport phenomena in Tm3Fe5O12 films, revealing how film thickness influences magnetic anisotropy and quantifying spin Hall and spin mixing parameters relevant for spintronics.
Contribution
It provides detailed magnetic parameter measurements of TmIG films with varying thicknesses and characterizes spin Hall and spin mixing conductance in TmIG/Pt heterostructures, advancing understanding for spintronics applications.
Findings
Magnetic parameters depend on film thickness.
Effective magnetization and anisotropy fields are quantified.
Spin Hall angle and spin diffusion length are measured.
Abstract
Ferromagnetic insulating garnet films with perpendicular magnetic anisotropy (PMA) are of great importance for the applications in spintronics. Tm3Fe5O12 (TmIG) with magnetoelastic anisotropy has been proven to exhibit PMA more easily than Y3Fe5O12. Here, magnetic parameters of TmIG films with various thicknesses are investigated by ferromagnetic resonance. The relationship between effective magnetic magnetization, surface perpendicular anisotropy field, magnetic anisotropy constants and film thickness is established. The parameters of spin Hall angle, spin diffusion length, and real part of the spin mixing conductance are obtained from the measurements of angular dependent magnetoresistance of TmIG/Pt heterostructures.
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Taxonomy
TopicsMagneto-Optical Properties and Applications · Multiferroics and related materials · Magnetic Properties and Synthesis of Ferrites