AUTHOR=Das Chumki , Mazumdar Kaushik TITLE=Investigation of the impact of the GaN cap layer on DC and RF performance in N-polar AlGaN/GaN HEMTs JOURNAL=Frontiers in Physics VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1561573 DOI=10.3389/fphy.2025.1561573 ISSN=2296-424X