Local quantum criticality of a one-dimensional Kondo insulator model

Zhu, Wei; Zhu, Jian -Xin

doi:10.1103/PhysRevB.97.245119

Title: Local quantum criticality of a one-dimensional Kondo insulator model

Journal Article · 13 June 2018 · Physical Review B

DOI: https://doi.org/10.1103/PhysRevB.97.245119 · OSTI ID:1477724

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Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Here, the continuous quantum phase transition and the nature of the quantum critical point (QCP) in a modified Kondo lattice model with Ising anisotropic exchange interactions are studied within the density-matrix renormalization group algorithm. We investigate the effect of quantum fluctuations on critical Kondo destruction QCP by probing static and dynamic properties of the magnetic order and the Kondo effect. In particular, we identify that local Kondo physics itself becomes critical at the magnetic phase transition point, providing unbiased evidences for local quantum criticality between two insulators without involving the Fermi surface.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: LDRD; USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1477724

Report Number(s):: LA-UR--18-20364

Journal Information:: Physical Review B, Journal Name: Physical Review B Journal Issue: 24 Vol. 97; ISSN 2469-9950; ISSN PRBMDO

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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