Modulated spin-liquid and magnetic order from a Kondo-Heisenberg model applied to URu2Si2
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)]....
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| Principais autores: | , , , |
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| Formato: | article |
| Idioma: | English |
| Publicado em: |
PHYSICAL REVIEW B
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| Assuntos: | |
| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/28841 |
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| Resumo: | 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. |
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