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Synthesis and Identification of Metastable Compounds: Black Arsenic—Science or Fiction?

Authors


  • This work was financed by DFG within the SPP 1415. O.O. thanks the TUM Graduate School for the financial support, Prof. R. Pöttgen (EDX analyses) und Prof. M. Binnewies (MS measurements).

Abstract

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Back in black: All metastable and stable phases can be identified for the solid solution arsenic/phosphorus by a combination of quantum-chemical calculations and investigations of the phase formation. Reaction paths for phase formations and transitions in situ were also evaluated. The results show that orthorhombic black arsenic (o-As) is metastable in pure form and has only been previously obtained by stabilizing impurities.

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