Physical Fingerprints of the 2O-t&#945;P Phase in Phosphorene Stacking.

Pan, Douxing; Liu, Changsong; Liu, Gui-Bin; Feng, Song; Yao, Yugui

Physical Fingerprints of the 2O-tαP Phase in Phosphorene Stacking.

Pan, Douxing; Liu, Changsong; Liu, Gui-Bin; Feng, Song; Yao, Yugui.

Afiliación

Pan D; Bio-inspired Robotics and Intelligent Material Laboratory, Institute of Advanced Manufacturing Technology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Changzhou 213164 , China.
Liu C; Key Laboratory of Materials Physics, Institute of Solid State Physics , Hefei Institutes of Physical Science , Chinese Academy of Sciences, Hefei 230031 , China.
Liu GB; Key Laboratory of Materials Physics, Institute of Solid State Physics , Hefei Institutes of Physical Science , Chinese Academy of Sciences, Hefei 230031 , China.
Feng S; Laboratory of Quantum Functional Material Design and Application, School of Physics , Beijing Institute of Technology , Beijing 100081 , China.
Yao Y; Bio-inspired Robotics and Intelligent Material Laboratory, Institute of Advanced Manufacturing Technology , Hefei Institutes of Physical Science, Chinese Academy of Sciences , Changzhou 213164 , China.

J Phys Chem Lett ; 10(11): 3190-3196, 2019 Jun 06.

Article en En | MEDLINE | ID: mdl-31144818

RESUMEN

The 2O-tαP phase is a bilayer phosphorene stacking twisted by â¼70.5° standing out from all the potential candidates predicted by our previous work. Here, by linear response theory, we directly verified that the 2O-tαP phase preserves the intrinsic features of phonon spectrum of the existing AB phase, reflecting a stable thermodynamic behavior. Then we provided three distinct fingerprints to help finding this new phase: upon comparison to the existing shifting bilayer phosphorene, the in-plane elastic constants showed a much weaker anisotropic response, providing a characteristic mechanical criterion; the calculated Raman spectrum revealed for the low frequency rang the layer-breathing mode and the out-of-plane twisted mode, L-A1 and L-A2, both of which together stabilize the twisted structure; in particular, the simulated scanning tunneling microscope image presented recognizable cross stripes, which should withstand an examination of exfoliated bilayer and few-layer black phosphorus.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: J Phys Chem Lett Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos

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