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Title: Magnetic correlations in a periodic Anderson model with nonuniform conduction electron coordination

Abstract

The periodic Anderson model is widely studied to understand strong correlation physics and especially the competition of antiferromagnetism and singlet formation. In this paper we extend quantum Monte Carlo work on lattices with uniform numbers of neighbors to geometries in which the conduction electron sites can have variable coordination z. This situation is relevant both to recently discovered magnetic quasicrystals and also to magnetism in doped heavy fermion systems. Our key results are the presence of antiferromagnetic order at weak interorbital hybridization Vfd, and a delay in singlet formation to larger values of Vfd on sites with larger z. In conclusion, the staggered magnetization tends to be larger on sites with higher z, providing insight into the behavior to be expected in crown, dice, and CaVO lattices.

Authors:
 [1];  [2];  [2]
  1. Southern Methodist Univ., Dallas, TX (United States)
  2. Univ. of California, Davis, CA (United States)
Publication Date:
Research Org.:
Univ. of California, Davis, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1477002
Alternate Identifier(s):
OSTI ID: 1258723
Grant/Contract Number:  
NA0002908; SC0014671
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 93; Journal Issue: 23; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Hartman, N., Chiu, W. -T., and Scalettar, R. T. Magnetic correlations in a periodic Anderson model with nonuniform conduction electron coordination. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.93.235143.
Hartman, N., Chiu, W. -T., & Scalettar, R. T. Magnetic correlations in a periodic Anderson model with nonuniform conduction electron coordination. United States. https://doi.org/10.1103/PhysRevB.93.235143
Hartman, N., Chiu, W. -T., and Scalettar, R. T. Tue . "Magnetic correlations in a periodic Anderson model with nonuniform conduction electron coordination". United States. https://doi.org/10.1103/PhysRevB.93.235143. https://www.osti.gov/servlets/purl/1477002.
@article{osti_1477002,
title = {Magnetic correlations in a periodic Anderson model with nonuniform conduction electron coordination},
author = {Hartman, N. and Chiu, W. -T. and Scalettar, R. T.},
abstractNote = {The periodic Anderson model is widely studied to understand strong correlation physics and especially the competition of antiferromagnetism and singlet formation. In this paper we extend quantum Monte Carlo work on lattices with uniform numbers of neighbors to geometries in which the conduction electron sites can have variable coordination z. This situation is relevant both to recently discovered magnetic quasicrystals and also to magnetism in doped heavy fermion systems. Our key results are the presence of antiferromagnetic order at weak interorbital hybridization Vfd, and a delay in singlet formation to larger values of Vfd on sites with larger z. In conclusion, the staggered magnetization tends to be larger on sites with higher z, providing insight into the behavior to be expected in crown, dice, and CaVO lattices.},
doi = {10.1103/PhysRevB.93.235143},
journal = {Physical Review B},
number = 23,
volume = 93,
place = {United States},
year = {Tue Jun 21 00:00:00 EDT 2016},
month = {Tue Jun 21 00:00:00 EDT 2016}
}

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Cited by: 14 works
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Works referencing / citing this record:

Magnon-impurity interaction effect on the magnonic heat capacity of the Lieb lattice
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Magnetization, d -wave superconductivity, and non-Fermi-liquid behavior in a crossover from dispersive to flat bands
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Superconductivity on a quasiperiodic lattice: Extended-to-localized crossover of Cooper pairs
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Antiferromagnetic order in the Hubbard model on the Penrose lattice
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Exotic pairing state in quasicrystalline superconductors under a magnetic field
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