Low-Energy Excitations and the Electronic Specific Heat of YbBiPt
Open Access
- 7 August 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 75 (6) , 1194-1197
- https://doi.org/10.1103/physrevlett.75.1194
Abstract
Neutron scattering data from the cubic heavy-fermion compound YbBiPt are presented, along with an interpretation in terms of strongly broadened crystal-field levels. To first order, the ground state is sixfold degenerate, consisting of a doublet and quartet . Integration over these levels reproduces the observed linear specific-heat coefficient of 8 J mol K to within 20%. At the lowest temperatures, an extra symmetry-forbidden splitting is observed.
Keywords
This publication has 11 references indexed in Scilit:
- Crystallography and magnetism of the heavy-fermion compound YbBiPtPhysical Review B, 1994
- Fermi Surface Instability and Symmetry Breaking in Heavy-Fermion Compound YbBiPtPhysical Review Letters, 1994
- Crystal field levels in YbBiPtPhysica B: Condensed Matter, 1993
- Neutron time-of-flight spectroscopyJournal of Research of the National Institute of Standards and Technology, 1993
- Massive electron state in YbBiPtPhysical Review Letters, 1991
- Magnetism and heavy fermion-like behavior in the RBiPt seriesJournal of Applied Physics, 1991
- The design and performance of QENS, a medium resolution, inverted geometry, tof quasielastic and inelastic spectrometer at IPNSNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1988
- Heavy-Electron Metals: New Highly Correlated States of MatterScience, 1988
- Specific Heats at Low TemperaturesPublished by Springer Nature ,1966
- The raising of angular momentum degeneracy of f-Electron terms by cubic crystal fieldsJournal of Physics and Chemistry of Solids, 1962