Phase transition arising from the underscreened Anderson lattice model: A candidate concept for explaining hidden order in URu2Si2 | Zendy

Peter S. Riseborough | Zendy; B. Coqblin | Zendy; S. G. Magalhães | Zendy

Open Access

Phase transition arising from the underscreened Anderson lattice model: A candidate concept for explaining hidden order in URu2Si2

Author(s) -

Peter S. Riseborough,

B. Coqblin,

S. G. Magalhães

Publication year - 2012

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.85.165116

Subject(s) - phase transition , lattice (music) , condensed matter physics , invariant (physics) , order (exchange) , physics , computer science , quantum mechanics , acoustics , finance , economics

We analyze a novel type of phase transition that appears in the spinrotationally invariant form of the underscreened Anderson Lattice Model and we obtain, with decreasing temperature, a continuous transition with opening of a gap. We suggest that this model might describe the \Hidden Order" transition in URu2Si2. We also examine the gaps that appear in the electronic dispersion relations of the bands of dierent orbital character and compare our results with those found through photo-electron spectroscopy.

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