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Interlayer Bond Formation in Black Phosphorus at High Pressure.

Authors :
Scelta, Demetrio
Baldassarre, Adhara
Serrano‐Ruiz, Manuel
Dziubek, Kamil
Cairns, Andrew B.
Peruzzini, Maurizio
Bini, Roberto
Ceppatelli, Matteo
Source :
Angewandte Chemie; 11/6/2017, Vol. 129 Issue 45, p14323-14328, 6p
Publication Year :
2017

Abstract

Black phosphorus was compressed at room temperature across the A17, A7 and simple-cubic phases up to 30 GPa, using a diamond anvil cell and He as pressure transmitting medium. Synchrotron X-ray diffraction showed the persistence of two previously unreported peaks related to the A7 structure in the pressure range of the simple-cubic phase. The Rietveld refinement of the data demonstrates the occurrence of a two-step mechanism for the A7 to simple-cubic phase transition, indicating the existence of an intermediate pseudo simple-cubic structure. From a chemical point of view this study represents a deep insight on the mechanism of interlayer bond formation during the transformation from the layered A7 to the non-layered simple-cubic phase of phosphorus, opening new perspectives for the design, synthesis and stabilization of phosphorene-based systems. As superconductivity is concerned, a new experimental evidence to explain the anomalous pressure behavior of T<subscript>c</subscript> in phosphorus below 30 GPa is provided. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00448249
Volume :
129
Issue :
45
Database :
Complementary Index
Journal :
Angewandte Chemie
Publication Type :
Academic Journal
Accession number :
125891348
Full Text :
https://doi.org/10.1002/ange.201708368