Samarium(III) arsenide explained

Samarium(III) arsenide is a binary inorganic compound of samarium and arsenic with the chemical formula SmAs.^{[1] [2]}

Synthesis

Samarium arsenide can be synthesised by heating of pure substances in vacuum:

Physical properties

Samarium arsenide forms crystals of a cubic system,^[3] space group Fm3m, cell parameters a = 0.5921 nm, Z = 4, of NaCl-structure.^{[4] [5]}

The compound melts congruently at 2257 °C.

Uses

SmAs is used as a semiconductor and in photo optic applications.^[6]

Notes and References

1. Book: Toxic Substances Control Act (TSCA) Chemical Substance Inventory. Cumulative Supplement to the Initial Inventory: User Guide and Indices . 1980 . . 301 . 11 January 2022 . en.
2. Web site: mp-1738: SmAs (cubic, Fm-3m, 225) . . 11 January 2022.
3. Book: NBS Monograph . 1959 . . 68 . 11 January 2022 . en.
4. Predel . B. . As-Sm (Arsenic-Samarium) - SpringerMaterials . materials.springer.com . 1991 . 11 January 2022 . en.
5. Iandelli . A. . Uber einige Verbindungen des Samariums vom NaCl-Typ . Zeitschrift für anorganische und allgemeine Chemie . November 1956 . 288 . 1–2 . 81–86 . 10.1002/zaac.19562880111 . 11 January 2022 . de.
6. Web site: Samarium Arsenide . . 11 January 2022 . en.