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Article Dans Une Revue Physical Review Letters Année : 2011

Modulated spin liquid: a new paradigm for URu$_2$Si$_2$

Résumé

We argue that near a Kondo breakdown critical point, a spin liquid with spatial modulations can form. Unlike its uniform counterpart, we find that this occurs via a second order phase transition. The amount of entropy quenched when ordering is of the same magnitude as for an antiferromagnet. Moreover, the two states are competitive, and at low temperatures are separated by a first order phase transition. The modulated spin liquid we find breaks $Z_4$ symmetry, as recently seen in the hidden order phase of URu$_2$Si$_2$. Based on this, we suggest that the modulated spin liquid is a viable candidate for this unique phase of matter.

Dates et versions

hal-00608692 , version 1 (13-07-2011)

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Citer

C. Pepin, M. R. Norman, S. Burdin, A. Ferraz. Modulated spin liquid: a new paradigm for URu$_2$Si$_2$. Physical Review Letters, 2011, 106 (10), pp.106601 (4). ⟨10.1103/PhysRevLett.106.106601⟩. ⟨hal-00608692⟩
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