@article {liu2020thermally,
	title = {Thermally annealed wafer-scale h-BN films grown on sapphire substrate by molecular beam epitaxy},
	journal = {Applied Physics Letters},
	volume = {116},
	number = {14},
	year = {2020},
	pages = {142104},
	publisher = {AIP Publishing LLC},
	author = {F. Liu and Rong, X and Yu, Y. and T. Wang and Sheng, BW and Wei, JQ and Liu, S. F. and Yang, JJ and Bertram, F and Xu, FJ and others}
}
