Publication | Closed Access
Anomalous low temperature states in CeNi<sub>2</sub>Ge<sub>2</sub>and CePd<sub>2</sub>Si<sub>2</sub>
67
Citations
16
References
2000
Year
Transition Metal ChalcogenidesMagnetismResistivity δρ~TxHigh-tc SuperconductivityEngineeringPhysicsNatural SciencesApplied PhysicsSuperconductivityQuantum MaterialsCondensed Matter PhysicsHigh Purity SamplesStrange Metallic PhaseHigh Tc SuperconductorsMagnetic MaterialsSolid-state PhysicQuantum Magnetism
High purity samples of the paramagnetic 4f-electron metal CeNi2Ge2 exhibit a non-Fermi-liquid form of the resistivity Δρ~Tx with x<1.5 and decreasing towards 1 with increasing sample purity. Measurements of ρ versus T as a function of magnetic field and pressure show that this strange metallic phase is connected to the proximity of an antiferromagnetic quantum critical point as in the isoelectronic relative CePd2Si2 near 2.8 GPa. The anomalous power-law dependence is surprisingly stable over extended ranges in temperature and pressure and challenges current theory of magnetic quantum phase transitions.
| Year | Citations | |
|---|---|---|
Page 1
Page 1