Effect of magnetic fluctuations on the normal-state properties of
INFM, Unità di Salerno, Dipartimento di Scienze
Fisiche “E.R. Caianiello” Università di Salerno - I-84081
Baronissi (Salerno), Italy
Accepted: 17 May 2000
We investigate the normal-state transport properties of and we show that a consistent explanation of the experimental results can be obtained assuming that the system is near a quantum phase transition. Within the framework of a self-consistent spin fluctuation theory, we calculate the temperature variation of some relevant physical quantities and we discuss a possible microscopic origin of the quantum phase transition.
PACS: 74.25.Ha – Magnetic properties / 74.25.Jb – Electronic structure / 74.20.Mn – Nonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal Fermi liquid, Luttinger liquid, etc.)
© EDP Sciences, 2000