Abstract
Pronounced non-Fermi-liquid (NFL) effects in thermodynamic and transport properties at ambient pressure and zero field are reported for high-purity samples of the undoped heavy-fermion compound . The origin of the NFL effects is not yet clear. Novel phase transitions are observed at both finite and ambient pressure. Under , a novel, perhaps spin-density-wave-type, phase transition occurs at . At , incipient superconductivity below is found in the two samples with lowest residual resistivities, .
- Received 1 September 1998
DOI:https://doi.org/10.1103/PhysRevLett.82.1293
©1999 American Physical Society