Spin glass behavior in FeAl2

Lue C., Oner Y. , NAUGLE D., ROSS J.

PHYSICAL REVIEW B, cilt.63, 2001 (SCI İndekslerine Giren Dergi) identifier identifier


Magnetic and transport measurements indicate FeAl2 to be an ordered intermetallic spin glass, with canonical behavior including a susceptibility cusp at T-f = 35 K and frequency-dependent susceptibility below T-f. The field-cooled and zero-held-cooled magnetization diverge below T-f, with hysteresis characteristic of a spin glass. A resistivity minimum just above T-f is explained in terms of coherent magnetic scattering. This behavior is common to spin glasses with short-range interactions among f-electron moments and indicates a similar spin configuration in these materials.