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V. Martelli, J. Larrea Jiménez, K. - A. Lorenzer, J. Hänel, A. Prokofiev, S. Paschen:
"Magnetoresistance investigation on single crystalline Ce3Pd20Si6 across the temperature-magnetic field phase diagram.";
Journal of Physics: Conference Series, 592 (2015), S. 012080-1 - 012080-6.

The heavy fermion cage compound Ce3Pd20Si6 crystallizes in a cubic crystal structure with two inequivalent Ce sites. It undergoes two phase transitions at TQ = 0.5 K and TN = 0.31 K which are tentatively attributed, respectively, to antiferroquadrupolar and to antiferromagnetic order. Recent specific heat investigations on single crystals detected additional anomalies within the antiferroquadrupolar phase, for a magnetic field applied along the [100] direction, suggesting the presence of a tricritical point at around 2.3 T and 0.5 K. We performed isothermal magnetoresistivity investigations (down to 0.055 K) on single crystalline Ce3Pd20Si6 across the B − T phase diagram to gain further insight on this new feature.

http://dx.doi.org/10.1088/1742-6596/592/1/012080