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Phase transformation engineering provides new synthetic opportunities and pathways toward functional materials with desirable phases and structures. However, current phase transformation processes are generally time‐consuming or low‐yielding due to the lack of favorable driving forces. Herein, a superfast and scalable phase transformation technique driven by dual chemical equilibrium is developed...
Scaling effects in Sesqui‐chalcogenides are of major interest to understand and optimize their performance in heavily scaled applications, including topological insulators and phase‐change devices. A combined experimental and theoretical study is presented for molecular beam epitaxy‐grown films of antimony‐telluride (Sb2Te3). Structural,vibrational, optical, and bonding properties upon varying confinement...