Superconductivity in La3Rh2Ge2 and dense Kondo behavior in Ce3Rh2Ge2

D. Kaczorowski; Yu. Prots; Yu. Grin

doi:10.1103/PhysRevB.64.224420

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Superconductivity in La3Rh2Ge2 and dense Kondo behavior in Ce3Rh2Ge2

D. Kaczorowski, Yu. Prots, Yu. Grin

DOI 10.1103/PhysRevB.64.224420 · Physical Review B

T1

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Abstract

Magnetic and electrical transport measurements were carried out on two isostructural compounds La3Rh2Ge2 and Ce3Rh2Ge2. The La-based phase is a weak Pauli paramagnet and shows typical metallic conductivity down to TC=3.5 K where it becomes superconducting. The Ce-based compound exhibits localized magnetism due to the presence of trivalent Ce ions and undergoes an antiferromagnetic phase transition at TN=7.5 K. Subsequently, at Tt=5 K, some spin rearrangement takes place resulting in the development of a tiny ferromagnetic component. The electrical resistivity of Ce3Rh2Ge2 shows a temperature behavior characteristic of Kondo systems.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La3Rh2Ge2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3.5	Pressure not reported	onset
La3Rh2Ge2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	3.5	Pressure not reported	zero_resistance
CeCu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
CeRh2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown