Critical exponents of the magnetostriction in amorphous alloys

Abstract
The magnetostriction of some amorphous alloys is investigated in the temperature range of the magnetic phase transition. Measurements are made with the help of a method described previously, and which is based on the observation of the macroscopical torsional strain under a longitudinal electrical current. The magnetostriction near the ferromagnetic phase transition is found to obey a (TcT)χ‐law with critical exponents depending on the type of alloy and values varying in the range of χ = 1.1 to 1.4.