154 citations · 1.1k across the 83 of their papers we have counts for
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First order quantum phase transitions
M. A. Continentino, A. S. Ferreira
Quantum phase transitions have been the subject of intense investigations in the last two decades [1]. Among other problems, these phase transitions are relevant in the study of he…
Experimental observation of quantum entanglement in low dimensional spin systems
T. G. Rappoport, L. Ghivelder, J. C. Fernandes +2
We report macroscopic magnetic measurements carried out in order to detect and characterize field-induced quantum entanglement in low dimensional spin systems. We analyze the pyrob…
Bose-Einstein condensation and entanglement in magnetic systems
Mucio A. Continentino
We present a study of magnetic field induced quantum phase transitions in insulating systems. A generalized scaling theory is used to obtain the temperature dependence of several p…
Spin wave instabilities and field induced transitions in heavy fermions
Mucio A. Continentino
We study phase transitions in heavy fermion systems due to spin-wave instabilities. One motivation is to determine the changes in the spin-wave parameters of a magnetically ordered…