Quasiparticles and order parameter near quantum phase transition in heavy fermion metals

Abstract

It is shown that the Landau paradigm based upon both the quasiparticle concept and the notion of the order parameter is valid and can be used to explain the anomalous behavior of the heavy fermion metals near quantum critical points. The understanding of this phenomenon has been problematic largely because of the absence of theoretical guidance. Exploiting this paradigm and the fermion condensation quantum phase transition, we investigate the anomalous behavior of the heavy electron liquid near its critical point at different temperatures and applied magnetic fields. We show that this anomalous behavior is universal and can be used to capture the essential aspects of recent experiments on heavy-fermion metals at low temperatures.

14 pages, revised and accepted by Physics Letters A

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Cited by in corpus (8)

• Quantum phase transitions from topology in momentum space
• Asymmetric tunneling, Andreev reflection and dynamic conductance spectra in strongly correlated metals
• Flat bands and the physics of strongly correlated Fermi systems
• Universal low-temperature behavior of the CePd_{1-x}Rh_x ferromagnet
• Universal behavior of $\mathrm{CeP}{\mathrm{d}}_{1-\mathrm{x}}\mathrm{R}{\mathrm{h}}_{\mathrm{x}}$ Ferromagnet at Quantum Critical Point
• Scaling behavior of superconductors
• Quasiparticles near quantum phase transition in heavy fermion metals
• Momentum space topology and quantum phase transitions