+Ba9 designates a specific [Barium](/wiki/Barium) compound, characterized by an unusual [Crystal Structure](/wiki/Crystal_Structure). Its unique atomic arrangement gives rise to intriguing electronic or magnetic properties, a focus of ongoing material research.
+## See also
+- [Alloy](/wiki/Alloy)
+- [Material Science](/wiki/Material_Science)
+- [Superconductor](/wiki/Superconductor)
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