Hexagonal, Karpinski, Metal, Metalloid

• B-Mg
• B-C-Mg
• Al-B-Mg
• B-C-Li-Mg
• B-Mg-Mn
• superconductivity
• critical magnetic field
• optical properties
• superconducting transition temperature
• values of superconducting transition temperature
• superconductor
• metal
• metalloid
• conductor
• alkaline