Media type: E-Article Title: Experimental evidence of the existence of multiple charged states at Al2O3/GaN interfaces Contributor: Taoka, Noriyuki; Kubo, Toshiharu; Yamada, Toshikazu; Egawa, Takashi; Shimizu, Mitsuaki imprint: IOP Publishing, 2019 Published in: Semiconductor Science and Technology Language: Not determined DOI: 10.1088/1361-6641/aaf621 ISSN: 0268-1242; 1361-6641 Keywords: Materials Chemistry ; Electrical and Electronic Engineering ; Condensed Matter Physics ; Electronic, Optical and Magnetic Materials Origination: Footnote: