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Title: Modulated spin-liquid and magnetic order from a Kondo-Heisenberg model applied to URu2Si2
Authors: Montiel, X
Burdin, S
Pépin, C
Ferraz Filho, Álvaro
Keywords: modelo de Kondo-Heisenberg
Issue Date: 22-Jul-2014
Citation: MONTIEL, X. ; BURDIN, S. ; PÉPIN, C. ; FERRAZ FILHO, A. . Modulated spin-liquid and magnetic order from a Kondo-Heisenberg model applied to URu2Si2. Physical Review. B, Condensed Matter and Materials Physics, v. 90, p. 045125, 2014. Disponível em: Acesso em: 03 abr. 2020.
Portuguese Abstract: Using the Kondo-Heisenberg model framework, we analyze the effect of charge fluctuations in the modulated spin liquid (MSL) and in the antiferromagnetic (AF) ordering which were introduced by Pepin ́ et al. [Phys. Rev. Lett. 106, 106601 (2011)] and Thomas et al. [Phys. Rev. B 87, 014422 (2013)]. Coupling the spin liquid to the charge sector enables us to discuss the formation of the Kondo effect in this system. As a result, we are able to observe the emergence of two phases showing the coexistence of the Kondo effect and the MSL (Kondo-MSL phase) and the coexistence of the Kondo-MSL-AF phases. We discuss the critical lines separating the coexisting Kondo-MSL and Kondo-MSL-AF phases. Our model produces promising results as regards to the experimental temperature-pressure phase diagram and to the two gap openings observed in URu2Si2.
Appears in Collections:CCET - DFTE - Artigos publicados em periódicos

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