High sensitivity and ultra-narrowband perfect metamaterial absorber based on graphene metasurface Yingxing Zeng, Boxun Li, LiLi Zeng, Genxiang Zhong, Zhengzheng Shao, Haiqing Xu, Mingliang Liu, Zhiguo Chen and Chengjian Dai Eur. Phys. J. Plus, 140 5 (2025) 416 Published online: 20 May 2025 DOI: 10.1140/epjp/s13360-025-06374-1