Search results

Sort By:

Limit search:

Magnetic and Thermodynamic Properties of Ce₄RuAl

100%

Debnath J., Strydom A., Sondezi B., Tappe F., Pöttgen R.

Acta Physica Polonica A

2015

vol. 127

issue 2

237-239

The results of magnetic susceptibility and heat capacity measurements are reported for the Ce₄RuAl compound above room temperature to low temperature range (400 K to 0.34 K) and in the magnetic field up to 7 T. The magnetic susceptibility χ(T) exhibits a distinct anomaly at 0.95 K which most probably suggests a paramagnetic to antiferromagnetic phase transition. The magnetic susceptibility obeys the Curie-Weiss law in the region 100-400 K and revealed an effective magnetic moment μ_{eff}=2.18 μ_{B}/Ce which is less than the value for free Ce³⁺ (μ_{eff}=2.54 μ_{B}). The paramagnetic Weiss temperature indicates net antiferromagnetic correlations. In the specific heat a peak at 1.3 K supports the bulk nature of the phase transition observed in χ(T). The Sommerfield coefficient is moderately enhanced in the paramagnetic phase, and suggests f-c correlations among the electrons prior to magnetic ordering. The obtained Sommerfield coefficient γ behavior is consistent with the Anderson model-based theoretical predictions.

Refine search results

1 Acta Physica Polonica A

1 2015

1 Debnath J.

1 Pöttgen R.

1 Sondezi B.

1 Strydom A.

1 Tappe F.

Search results

Magnetic and Thermodynamic Properties of Ce₄RuAl