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2009 | 115 | 1 | 181-184
Article title

Anisotropy of Magnetic and Transport Properties οf UAuSb_2 Single Crystals

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EN
Abstracts
EN
The uranium-gold diantimonide UAuSb_2 belongs to a numerous family of ternary compounds crystallizing in a tetragonal structure of the HfCuSi_2-type (space group P4/nmm). In this paper the results of magnetization, electrical resistivity and thermopower measured along the main crystallographic directions are reported. Two magnetic transitions, a ferromagnetic one at T_C =31 K and probably an antiferromagnetic one at T_N = 43 K were found. The spontaneous magnetization at 1.9 K amounts about 0.8 μ_B for B ⃦c-axis. Electrical resistivity for j⊥ c-axis exhibits a T^2 exp(-Δ/kT) dependence at low temperatures and a Kondo effect at higher temperatures above T_N. The thermopower S for both main crystallographic directions shows a maximum at the temperature close to T_C and the lack of any anomaly at T_N.
Keywords
EN
Contributors
author
  • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
author
  • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
  • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
author
  • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland
References
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  • 5. Z. Bukowski, D. Kaczorowski, J. Stępień-Damm, D. Badurski, R. Troć, Intermetallics 12, 138 (2004)
  • 6. B. Coqblin, Acta Phys. Pol. A 113, 39 (2008) and references therein
  • 7. Z. Bukowski, R. Troć, J. Stępień-Damm, C. Sułkowski, V.H. Tran, J. Alloys Comp. 403, 65 (2005)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n1047kz
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