Design of high-frequency surface acoustic wave resonators based on Al0.8Sc0.2N/AlN/Sapphire multilayer structureJi Li, Wei Guo, Fanping Meng, Sitong Chen, Fang Ye, Weiping Xie, Li Chen, Jinyan Wang and Jichun YeEur. Phys. J. Spec. Top., 234 2 (2025) 375-384DOI: https://doi.org/10.1140/epjs/s11734-024-01430-w