Strongly inhomogeneous phases and non-Fermi-liquid behavior in randomly depleted Kondo lattices
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Contributors
Abstract
We investigate the low-temperature behavior of paramagnetic Kondo lattices upon random depletion of the local f moments by using strong-coupling arguments and solving SU (N) saddle-point equations on large lattices. For a large range of intermediate doping levels, between the coherent Fermi-liquid of the dense lattice and the single-impurity Fermi liquid of the dilute limit, we find strongly inhomogeneous states that exhibit distinct non-Fermi-liquid characteristics. The interplay of dopant disorder and strong interactions leads to rare weakly screened moments which dominate the bulk susceptibility. Our results are relevant to compounds like Cex La1-x Co In5 and Cex La1-x Pb3.
Details
Original language | English |
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Article number | 132407 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 75 |
Issue number | 13 |
Publication status | Published - 25 Apr 2007 |
Peer-reviewed | Yes |
Externally published | Yes |