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Physical properties of the new ferromagnetic Kondo system CeAg1−xNixSb2

B. POPESCU1, A. BIRSAN1, A. GALATANU1,* , E. ROYANIAN2, G. HILSCHER2, E. BAUER2

Affiliation

  1. National Institute of Materials Physics, 77125 Magurele, Romania
  2. Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria

Abstract

Structural, magnetic and transport properties of CeAg1−xNixSb2 compounds are investigated on polycrystalline samples. The experimental results show the formation of ferromagnetic compounds with sharp transitions decreasing from 9.5 K in the 100% Ag compound to 8.1 K for 33% Ni substitution, 7 K for 67% Ni substitution to 6 K for the 100% Ni compound. The characteristic temperatures, considered as the temperature of the resistivity maximum T0 increases from 26 K to 44 K, 54 K and 65 K, respectively. These results indicate Ce(AgNi)Sb2 compounds as a ferromagnetic Kondo system..

Keywords

Ferromagnetic kondo system, Ce-Ag-Ni-Sb.

Submitted at: April 1, 2008
Accepted at: July 1, 2008

Citation

B. POPESCU, A. BIRSAN, A. GALATANU, E. ROYANIAN, G. HILSCHER, E. BAUER, Physical properties of the new ferromagnetic Kondo system CeAg1−xNixSb2, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 7, pp. 1625-1629 (2008)