@article {li2019high,
	title = {High-speed black phosphorus field-effect transistors approaching ballistic limit},
	journal = {Science advances},
	volume = {5},
	number = {6},
	year = {2019},
	pages = {eaau3194},
	publisher = {American Association for the Advancement of Science},
	author = {Li, Xuefei and Yu, Zhuoqing and Xiong, Xiong and Li, Tiaoyang and Gao, Tingting and Runsheng WANG and Ru HUANG and Wu, Yanqing}
}
