Realizing freestanding single-crystal oriented membranes of ultrawide-bandgap semiconductor ε-Ga2O3 and their prospects in optoelectronic device applications. - Zhang, Tao; Shen, Jiaying; Dong, Dianmeng; Zhang, Qingyi; Wang, Tiejun; Zhang, Fan; Wu, Zhenping (Applied Physics Letters, 2025)