Phase change in GeTe/Sb$_2$Te$_3$ superlattices: formation of the vacancy-ordered metastable cubic structure via Ge migration
Chang Woo Lee, Jin-Su Oh, Sun-Ho Park, Hyeon Wook Lim, Da Sol Kim, Kyu-Jin Cho, Cheol-Woong Yang, Young-Kyun Kwon, and Mann-Ho Cho, Appl. Surf. Sci. 602, 154274 (2022).
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