Magnetic field shielding is critical for the reliable operation of quantum computers. Traditionally, mu-metal is used for this purpose, but this material is not suitable for the extremely low temperatures in which quantum computers operate.

Magnetic Shields has developed Cryophy: a special soft magnetic nickel-iron alloy that provides optimal magnetic shielding in cryogenic environments at 4 Kelvin (-269°C), where traditional mu-metal loses its effectiveness.

Magnetic properties (at 1 mm thickness):

• Saturation induction (G – T at 2 Oe ≈ 16 A/m): 8000 – 0.8
• Coercive force (Oe – A/m): 0.010 – 0.8
• Permeability (at 5 mOe ≈ 4 A/m): 70,000

Cryophy is available in various forms: sheets, tubes, or foil. The thickness ranges from 0.1 to 3.5 mm, with widths from 10 to 640 mm and lengths from 500 to 3500 mm. This allows Cryophy to be perfectly tailored to the specific requirements of applications.

In addition to quantum computers, Cryophy can be applied in particle accelerators, medical equipment such as MRI scanners, research laboratories, and in aerospace for satellites or spacecraft.