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V. Martelli, J. Larrea Jiménez, J. Hänel, K. - A. Lorenzer, A. Prokofiev, S. Paschen:
"Electrical resistivity of single crystalline Ce3Pd20Si6 across the temperature-magnetic field phase diagram";
Journal of Physics: Conference Series, 3 (2014), 012008.

The heavy fermion cage compound Ce3Pd20Si6 has a cubic crystal structure with two inequivalent Ce
sites. It undergoes two phase transitions, at TQ= 0.5 K and at TN= 0.31 K, attributed respectively to
antiferroquadrupolar (AFQ) and to antiferromagnetic (AFM) order. Magnetization, ultrasound and
specific heat investigations on single crystals revealed an anisotropic evolution of TQ with respect
to the direction of an external magnetic field. Here we report electrical resistivity measurements
performed on single crystalline Ce3Pd20Si6 between 0.05 and 0.65 K in magnetic fields applied
along the [100] direction. We find anomalies in the residual resistivity 0 and the A coefficient of the
electrical resistivity at the magnetic field where TQ is suppressed to zero.

heavy fermion, quantum phase transition, cage compounds, cubic system, antiferromagnetic, antiferroquadrupolar

http://dx.doi.org/10.7566/JPSCP.3.012008