Thermal properties of metamagnetic transition in heavy-fermion systems
作者： Y. Aoki , T.D. Matsuda , H. Sugawara , H. Sato , H. Ohkuni
DOI: 10.1016/S0304-8853(97)00484-8
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摘要: Abstract In order to investigate the metamagnetic anomaly (MA) observed in several heavy-fermion compounds, field dependence of specific heat C(B) and magnetocaloric effect have been measured prototypical 4f-electron compound CeRu2Si2, compared that a 5f-electron metamagnet UCoAl. C/T versus B curves, an unexpected double-peak structure is found suggesting MA closely related sharp peak density states hybridized quasiparticle bands. On other hand, for UCoAl, only small decrease observed, although both compounds exhibit similar bulk magnetic properties.
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