Physical Properties Study of the CeOsGa4 Compound |
| B.M. Sondezi and A.M. Strydom
Highly Correlated Matter Research Group, Department of Physics, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa |
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| A polycrystalline sample of CeOsGa4 was prepared by arc-melting stoichiometric quantities of high purity elements of 4N and greater, in an arc furnace. The data was confirmed to crystallize in an orthorhombic structure, with a space group Pmma (Number 51). Measurements of the magnetic susceptibility showed a distinct anomaly around To = 3.8 K, while the high temperature data (above 100 K) obeys Curie-Weiss law. The calculated effective moment of 2.44 μB, was obtained, which was a bit less than the theoretical moment for a Ce3+ ion of 2.54 μB. Magnetization data at T=2 K depicts that CeOsGa4 does not saturate up to applied magnetic field of 7 T, while the data measured at 9 K indicates that the compound is purely paramagnetic at that temperature. The low temperature specific heat data is characterized by an anomaly at To = 3.8 K confirming the χ(T) data. Electrical resistivity shows a metallic behaviour at high temperatures with a deviation at low temperatures, signalling the cooperative behaviour which results to ordering. In this work we present the initial studies of the physical properties measurements performed on this compound. |
DOI: 10.12693/APhysPolA.133.398 PACS numbers: 75.50.Ee, 75.50.Cc, 75.40.-s |