154 citations · 1.1k across the 83 of their papers we have counts for
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Local criticality close to a quantum Lifshitz point
Mucio A. Continentino
Near quantum Lifshitz points the stiffness of the lifetime of the spin fluctuations is very small. This gives rise to a regime where the critical fluctuations are local in space bu…
Spin-3/2 random quantum antiferromagnetic chains
A. Saguia, B. Boechat, M. A. Continentino
We use a modified perturbative renormalization group approach to study the random quantum antiferromagnetic spin-3/2 chain. We find that in the case of rectangular distributions th…
Abrupt field-induced transition triggered by magnetocaloric effect in phase-separated manganites
L. Ghivelder, R. S. Freitas, M. G. das Virgens +7
The occurrence at low temperatures of an ultrasharp field-induced transition in phase separated manganites is analyzed. Experimental results show that magnetization and specific he…
Remarks on quantum critical behavior in heavy fermions
Mucio A. Continentino
Generalized scaling relations and renormalization group results are used to discuss the phase diagrams of heavy fermion systems. We consider the cases where these materials are dri…