What question did this study set out to answer?

The aim is to synthesize and analyze the topologically nontrivial compound CaSn2As2.

April 3, 2026Bulletin of the Lebedev Physics Institute0 citations

Synthesis and Growth of Single Crystals of a New Topologically Nontrivial Compound CaSn2As2

MFM. A. FeshinaP.N. Lebedev Physical Institute of the Russian Academy of Sciences AMA. S. MedvedevP.N. Lebedev Physical Institute of the Russian Academy of Sciences VVV. A. VlasenkoP.N. Lebedev Physical Institute of the Russian Academy of Sciences

Key Points

The aim is to synthesize and analyze the topologically nontrivial compound CaSn2As2.
Synthesis of single crystals using the self-flux method in SnAs.
Element distribution maps are obtained from the crystal surface.
Calculation of the molar ratio of elements present in the compound.
Determination of the structural configuration in trigonal syngony.
The compound is confirmed to have a trigonal structure.
Space group identified as $$R\bar {3}m$$.
Cell parameters measured as a = 4.1503 Å and c = 26.049 Å.

Abstract

Single crystals of the topologically nontrivial CaSn2As2 compound are grown by the self-flux method in SnAs. The distribution maps of elements on the crystal surface are obtained, and the molar ratio of the elements is calculated. The structural configuration of the compound is determined in the trigonal syngony in the space group R 3m with the cell parameters a = 4. 1503 (13) Å and c = 26. 049 (11) Å.

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