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arXiv · 1605.08195

Thickness and temperature dependence of the magnetodynamic damping of pulsed laser deposited $\text{La}_{0.7}\text{Sr}_{0.3}\text{MnO}_3$ on (111)-oriented SrTi$\text{O}_3$

Vegard Flovik·Ferran Macià·Sergi Lendínez·Joan Manel Hernàndez·Ingrid Hallsteinsen·Thomas Tybell·Erik Wahlström
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Abstract

We have investigated the magnetodynamic properties of $\text{La}_{0.7}\text{Sr}_{0.3}\text{MnO}_3$ (LSMO) films of thickness 10, 15 and 30 nm grown on (111)-oriented SrTi$\text{O}_3$ (STO) substrates by pulsed laser deposition. Ferromagnetic resonance (FMR) experiments were performed in the temperature range 100--300 K, and the magnetodynamic damping parameter $α$ was extracted as a function of both film thickness and temperature. We found that the damping is lowest for the intermediate film thickness of 15 nm with $α\approx 2 \cdot 10^{-3}$, where $α$ is relatively constant as a function of temperature well below the Curie temperature of the respective films.

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Vegard Flovik, Ferran Macià, Sergi Lendínez, Joan Manel Hernàndez, Ingrid Hallsteinsen, Thomas Tybell, Erik Wahlström. 2016-07-16. Thickness and temperature dependence of the magnetodynamic damping of pulsed laser deposited $\text{La}_{0.7}\text{Sr}_{0.3}\text{MnO}_3$ on (111)-oriented SrTi$\text{O}_3$. https://doi.org/10.1016/j.jmmm.2016.07.028

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