Pressure effects on the Kondo-lattice compound Ce2Pd3Si5
PhysRevB_69_172406.pdf 97.7 KB
The influence of external pressure on the electrical-resistivity behavior of Ce2Pd3Si5, recently reported to order antiferromagnetically below (TN=) 8.2 K, has been investigated in the temperature interval 2.5 300 K employing a cubic anvil pressure cell up to 8 GPa. We find that TN remains nearly constant below 4 GPa, beyond which there is a sharp decrease, which establishes that this compound lies at the peak of Doniach's magnetic phase diagram. Apparently this compound behaves above 2.3 K like a nonmagnetic Kondo lattice at 8 GPa with a distinct feature attributable to Kondo coherence effects.
Physical Review B - Condensed Matter and Materials Physics
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Graduate School of Advanced Sciences of Matter