What is it about?
Thermodyanmic stability is an important aspect of realizing their feasibility and strain can be used as an external stimuli to drive thermodyanic stability. This work demonstrates that some unstable 2D ZnX layers can be made thermodymically stable under strain, suggesting their realization as strained monolayers on lattice mismatched substrates. Further, strain also led to electronic transitions in these 2D layers.
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Why is it important?
This study provides a way to make thermodynamically unstable monolayers into stable monolayers using strain.
Perspectives
I hope that this work may provide experimentalists to select the suitable substrates to such thermodynamically unstable systems.
Ambesh Dixit
Indian Institute of Technology Jodhpur
Read the Original
This page is a summary of: Strain-driven thermodynamic stability and electronic transitions in ZnX (X = O, S, Se, and Te) monolayers, Journal of Applied Physics, February 2019, American Institute of Physics,
DOI: 10.1063/1.5053680.
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