Spin glass behavior in FeAl2

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

PHYSICAL REVIEW B, vol.63, no.18, 2001 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 63 Issue: 18
  • Publication Date: 2001
  • Doi Number: 10.1103/physrevb.63.184405
  • Title of Journal : PHYSICAL REVIEW B


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.