Magnetostriction of Pd–Co Alloys

Abstract

Magnetostriction constants h₁ and h₂ of Pd–Co alloys containing 5∼60 at% Co have been measured in the temperature range between 77 K and 300 K. The values of h₁ and h₂ at 0 K determined by the extrapolation increase in magnitude with increasing Co concentration, and reach the maxima of about −3.1×10⁻⁴ and −2.9×10⁻⁴ at about 15 at% Co, respectively. With further increase of Co, h₁ decreases rapidly in magnitude and becomes positive above about 40 at% Co, while h₂ decreases gradually without change in sign.