Continuous Evolution of the Fermi Surface of CeRu2Si2 across the Metamagnetic Transition

Abstract

We present new, high resolution Hall effect and magnetoresistance measurements across the metamagnetic transition in the heavy fermion compound CeRu2Si2. The results force us to rethink the notion that the transition is accompanied by an abrupt f-electron localisation. Instead, we explain our data assuming a continuous change of the Fermi surface. We also point out ambiguities in the interpretation of dHvA data and give a possible solution to the problem of the "missing mass".

4 pages, 4 figures, submitted to Phys. Rev. Lett

References in corpus (2)

• Hall-effect evolution across a heavy-fermion quantum critical point
• The de Haas-van Alphen effect across the metamagnetic transition in Sr${}_3$Ru${}_2$O${}_7$

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