Energy scales of the doped Anderson lattice model
Abstract
This paper explores the energy scales of the doped Anderson lattice model using dynamical meanfield theory (DMFT), using a continuoustime Quantum Monte Carlo (CTQMC) impurity solver. We show that the low temperature properties of the lattice can not be scaled using the single ion local Kondo temperature T_{K} but instead are governed by a dopingdependent coherence temperature T* which can be used to scale the temperature dependence of the spectral function, transport properties, and entropy. At half filling T* closely approximates the single ion T_{K}, but as the filling n_{c} is reduced to zero, T* also vanishes. The coherence temperature T* is shown to play a role of effective impurity Kondo temperature in the lattice model, and physical observables show significant evolution at T*. In the DMFT framework, we showed that the hybridization strength of the effective impurity model is qualitatively affected by the doping level, and determines T* in the lattice model.
 Authors:

 Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Dept. of Chemistry
 Rutgers Univ., Piscataway, NJ (United States). Dept. of Physics and Astronomy
 Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Dept. of Chemistry, and Dept. of Physics
 Publication Date:
 Research Org.:
 Rutgers Univ., Piscataway, NJ (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), Basic Energy Sciences (BES)
 OSTI Identifier:
 1509680
 Alternate Identifier(s):
 OSTI ID: 1506725
 Grant/Contract Number:
 FG0299ER45790
 Resource Type:
 Accepted Manuscript
 Journal Name:
 Physical Review B
 Additional Journal Information:
 Journal Volume: 99; Journal Issue: 16; Journal ID: ISSN 24699950
 Publisher:
 American Physical Society (APS)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Kondo Lattice, Dynamical Mean Field Theory, Heavy Fermions
Citation Formats
Kang, Hanhim, Haule, Kristjan, Kotliar, Gabriel, Coleman, Piers, and Shim, JiHoon. Energy scales of the doped Anderson lattice model. United States: N. p., 2019.
Web. doi:10.1103/PhysRevB.99.165115.
Kang, Hanhim, Haule, Kristjan, Kotliar, Gabriel, Coleman, Piers, & Shim, JiHoon. Energy scales of the doped Anderson lattice model. United States. doi:10.1103/PhysRevB.99.165115.
Kang, Hanhim, Haule, Kristjan, Kotliar, Gabriel, Coleman, Piers, and Shim, JiHoon. Fri .
"Energy scales of the doped Anderson lattice model". United States. doi:10.1103/PhysRevB.99.165115. https://www.osti.gov/servlets/purl/1509680.
@article{osti_1509680,
title = {Energy scales of the doped Anderson lattice model},
author = {Kang, Hanhim and Haule, Kristjan and Kotliar, Gabriel and Coleman, Piers and Shim, JiHoon},
abstractNote = {This paper explores the energy scales of the doped Anderson lattice model using dynamical meanfield theory (DMFT), using a continuoustime Quantum Monte Carlo (CTQMC) impurity solver. We show that the low temperature properties of the lattice can not be scaled using the single ion local Kondo temperature TK but instead are governed by a dopingdependent coherence temperature T* which can be used to scale the temperature dependence of the spectral function, transport properties, and entropy. At half filling T* closely approximates the single ion TK, but as the filling nc is reduced to zero, T* also vanishes. The coherence temperature T* is shown to play a role of effective impurity Kondo temperature in the lattice model, and physical observables show significant evolution at T*. In the DMFT framework, we showed that the hybridization strength of the effective impurity model is qualitatively affected by the doping level, and determines T* in the lattice model.},
doi = {10.1103/PhysRevB.99.165115},
journal = {Physical Review B},
number = 16,
volume = 99,
place = {United States},
year = {2019},
month = {4}
}
Web of Science
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Works referencing / citing this record:
Quantum Criticality in the TwoDimensional Periodic Anderson Model
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