Neutron scattering study of cyrstal fields in CeRhIn5

Abstract

Neutron scattering results for the tetragonal compound CeRhIn5 give evidence for two crystal field (CF) excitations at 6.9 and 23.6 meV. The scattering can be fit assuming a set of CF parameters B${}_2^0$ = -1.03 meV, B${}_4^0$ = 0.044 meV and B${}_4^4$ = 0.122 meV. To compare our results to previous work, we calculate the susceptibility and specific heat for this CF scheme, including a molecular field term $\lambda =$35 mol/emu to account for the Kondo effect. We also include a calculation based on these CF parameters that uses the non-crossing approximation to the Anderson model to estimate the effect of Kondo physics on the susceptibility, specific heat and neutron linewidths.

4 pages, 3 figures

References in corpus (1)

• A New Heavy-Fermion Superconductor CeIrIn5: Relative of the Cuprates?

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