Consequences of the local spin self-energy approximation on the heavy Fermion quantum phase transition
arXiv:cond-mat/0501175 · doi:10.1103/PhysRevB.71.245104
Abstract
We show, using the periodic Anderson model, that the local spin self-energy approximation, as implemented in the extended dynamical mean field theory (EDMFT), results in a first order phase transition which persists to T=0. Around the transition, there is a finite coexistence region of the paramagnetic and antiferromagnetic (AFM) phases. The region is bounded by two critical transition lines which differ by an electron-hole bubble at the AFM ordering wave vector.
arXiv comment16 pages, 1 figure
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- Zero-Temperature Magnetic Transition in an Easy-Axis Kondo Lattice Model
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- Understanding the Heavy Fermion Phenomenology from Microscopic Model
- Comment on "A Tale of Two Theories: Quantum Griffiths Effects in Metallic Systems" by A. H. Castro-Neto and B. A. Jones
- Magnetic properties of a Kondo insulator with RKKY interaction: Extended dynamical mean field study
- Reply to Millis et al. on "A Tale of Two Theories: Quantum Griffiths Effects in Metallic Systems"