Direct Observation of Tunable Magnons in Epitaxial Lithium Aluminum Ferrite Thin Films

Nano Letters 2026

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Authors: Junwei Tong, Hari Paudyal, Xiangcheng Liu, Lerato Takana, Katya Mikhailova, Y. Suzuki, Durga Paudyal, Xiaoqin Li
DOI: 10.1021/acs.nanolett.5c05922
Cited by: 0
References: 48

Abstract

Ferrimagnetic insulators offer a promising route toward low-loss magnonic devices. Here, we report the first direct observation of magnons in high-quality epitaxial lithium aluminum ferrite (LAFO) thin films using inelastic Brillouin light scattering. We observe remarkably sharp magnon resonances with instrument-limited line widths whose frequencies can be tuned by film thickness and applied magnetic field (

Fields of Study & Subjects

Magnetic properties of thin films Magnetic Properties and Synthesis of Ferrites Advanced Condensed Matter Physics

Publication details

Journal / source
Nano Letters
Volume
26
Issue
9
Pages
3073–3079
Publication date
23 February 2026
Language
EN