Magnetic Field Shielding core
Magnetic shielding using Amorphous cores is one of the best known and most effective magnetic shielding mechanisms. Amorphous core has magnetic permability of 1,000,000 - which is one of the highest permeability coefficients.
Not just high permability - amorphous cores are also known for high material strength, hardness, flexibility and toughness.
Amorphous allows are used as magnetic cores in Tesla Electric cars and space shuttles to arrest magnetic interference.