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arXiv · 1101.1582

Multiple Quantum Phase Transitions of Plutonium compounds

Munehisa Matsumoto·Quan Yin·Junya Otsuki·Sergey Yu. Savrasov
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Abstract

We show by quantum Monte Carlo simulations of realistic Kondo lattice models derived from electronic--structure calculations that multiple quantum critical points can be realized in Plutonium--based materials. We place representative systems including PuCoGa5 on a realistic Doniach phase diagram and identify the regions where the magnetically mediated superconductivity could occur. Solution of an inverse problem to restore the quasiparticle renormalization factor for f-electrons is shown to be sufficiently good to predict the trends among Sommerfeld coefficients and magnetism. Suggestion on the possible experimental verification for this scenario is given for PuAs.

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Munehisa Matsumoto, Quan Yin, Junya Otsuki, Sergey Yu. Savrasov. 2011-04-10. Multiple Quantum Phase Transitions of Plutonium compounds. https://doi.org/10.1103/physrevb.84.041105

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