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Phys. Rev. B 63, 184405 (2001) [4 pages]

Spin glass behavior in FeAl2

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C. S. Lue1,*, Y. Öner1,2, D. G. Naugle1, and Joseph H. Ross, Jr.1,†
1Department of Physics, Texas A&M University, College Station, Texas 77843-4242
2Department of Physics, Istanbul Technical University, 80626, Maslak, Istanbul, Turkey

Received 8 June 2000; published 16 April 2001

Magnetic and transport measurements indicate FeAl2 to be an ordered intermetallic spin glass, with canonical behavior including a susceptibility cusp at Tf=35K and frequency-dependent susceptibility below Tf. The field-cooled and zero-field-cooled magnetization diverge below Tf, with hysteresis characteristic of a spin glass. A resistivity minimum just above Tf 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.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.63.184405
DOI:
10.1103/PhysRevB.63.184405
PACS:
75.50.Lk, 72.80.Ga, 75.20.Hr

*Present address: Department of Physics, National Sun-Yat-Sen University, Kaohsiung, Taiwan.

†Email address: jhross@tamu.edu

 
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