Chen, Xiaohong, and Paulo. P. Freitas. “Magnetic Tunnel Junction Based on MgO Barrier Prepared by Natural Oxidation and Direct Sputtering Deposition”. Nano-Micro Letters 4, no. 1 (February 28, 2012): 25-29. Accessed May 3, 2025. https://www.nmlett.org/index.php/nml/article/view/720.