Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101613
Title: Scaling theory of magnetism in frustrated Kondo lattices
Authors: Irkhin, V. Y.
Issue Date: 2020
Publisher: Institute of Physics Publishing
Citation: Irkhin V. Y. Scaling theory of magnetism in frustrated Kondo lattices / V. Y. Irkhin. — DOI 10.1088/1361-648X/ab5cb0 // Journal of Physics Condensed Matter. — 2020. — Vol. 32. — Iss. 12. — 125601.
Abstract: A scaling theory of the Kondo lattices with frustrated exchange interactions is developed, criterium of antiferromagnetic ordering and quantum-disordered state being investigated. The calculations taking into account magnon and incoherent spin dynamics are performed. Depending on the bare model parameters, one or two quantum phase transitions into non-magnetic spin-liquid and Kondo Fermi-liquid ground states can occur with increasing the bare coupling constant. Whereas the renormalization of the magnetic moment in the ordered phase can reach orders of magnitude, spin fluctuation frequency and coupling constant are moderately renormalized in the spin-liquid phase. This justifies application of the scaling approach. Possibility of a non-Fermi-liquid behavior is treated. © 2019 IOP Publishing Ltd.
Keywords: FRUSTRATION
KONDO LATTICE
MAGNETISM
ANTIFERROMAGNETISM
FERMI LIQUIDS
FERMIONS
GROUND STATE
LIQUIDS
MAGNETIC MOMENTS
MAGNETISM
PHASE TRANSITIONS
QUANTUM THEORY
SPIN FLUCTUATIONS
ANTIFERROMAGNETIC ORDERINGS
COUPLING CONSTANTS
FLUCTUATION FREQUENCY
FRUSTRATION
KONDO LATTICES
NON-FERMI-LIQUID BEHAVIOR
ORDERS OF MAGNITUDE
QUANTUM PHASE TRANSITIONS
LATTICE THEORY
ARTICLE
CALCULATION
FRUSTRATION
MAGNETISM
PHASE TRANSITION
URI: http://hdl.handle.net/10995/101613
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85077294766
PURE ID: 11729170
70874bb6-0883-46b3-b3ed-3146558be7ef
ISSN: 9538984
DOI: 10.1088/1361-648X/ab5cb0
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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