Under standard conditions, the elements dysprosium and tin combine to form a number of intermetallic compounds, the dysprosium stannides.
Dysprosium stannides with simple empirical formulas include Dy5Sn3 and DySn2, but four other intermetallics have intermediate composition.
None is believed to survive temperatures higher than 1,866 °C (3,391 °F), whereat Dy5Sn3 decomposes.
[2] DySn2 adopts the zirconium disilicide crystal structure, and undergoes a Néel transition around 17 K (−429.1 °F).
The magnetic patterning below the Néel point has periods incommensurable with the atomic unit cell, leading to a sinusoidal modulation.