Abstract:Magnetostriction of polycrystalline Co100−xPdx alloys was measured by the strain gauge method from 4 to 300 K. The saturation magnetostriction λs=(2/3)[(ΔL/L)s∥−(ΔL/L)s⊥], where (ΔL/L)s∥ and (ΔL/L)s⊥ are the saturated values (when HE≳5 kG) of ΔL/L in fields parallel and perpendicular to sample’s length (L). λs at 4 K is found to change sign from positive to negative value as x is increased from below x0=50 at. % Pd to above. This phenomenon can be understood from the split-band theory for Co-Pd alloy. However,… Show more
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