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

Journal Article · · Physical Review B
 [1];  [2];  [2]
  1. Southern Methodist Univ., Dallas, TX (United States)
  2. Univ. of California, Davis, CA (United States)

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.

Research Organization:
Univ. of California, Davis, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0002908; SC0014671
OSTI ID:
1477002
Alternate ID(s):
OSTI ID: 1258723
Journal Information:
Physical Review B, Vol. 93, Issue 23; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Cited By (8)

Magnon-impurity interaction effect on the magnonic heat capacity of the Lieb lattice journal December 2018
Conventional superconductivity in quasicrystals journal July 2019
Magnetization, d -wave superconductivity, and non-Fermi-liquid behavior in a crossover from dispersive to flat bands journal September 2019
Superconductivity on a quasiperiodic lattice: Extended-to-localized crossover of Cooper pairs journal January 2017
Antiferromagnetic order in the Hubbard model on the Penrose lattice journal December 2017
Exotic pairing state in quasicrystalline superconductors under a magnetic field journal September 2019
Magnetization, d-wave superconductivity and non-Fermi liquid behavior in a crossover from dispersive to flat bands text January 2019
Exotic pairing state in quasicrystalline superconductors under magnetic field text January 2019

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