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Title: Electronic correlation induced expansion of Fermi pockets in δ-plutonium

Abstract

Plutonium is a critically important material as the behavior of its 5f electrons stands midway between the metalliclike itinerant character of the light actinides and localized atomic-core-like character of the heavy actinides. The δ phase of plutonium (δ-Pu), whereas still itinerant, has a large coherent Kondo peak and strong electronic correlations coming from its near-localized character. Here, using sophisticated Gutzwiller wave function and dynamical mean-field theory correlated theories, we study the Fermi surface and associated mass renormalizations of δ-Pu together with calculations of the de Haas–van Alphen frequencies. We find a large (~200%) correlation induced volume expansion in both the hole and the electron pockets of the Fermi surface in addition to an intermediate mass enhancement. All of the correlated electron theories predict, approximately, the same hole pocket placement in the Brillouin zone, which is different from that obtained in conventional density-functional band-structure theory, whereas the electron pockets from all theories are in, roughly, the same place.

Authors:
ORCiD logo [1];  [2];  [1];  [3]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of California, Davis, CA (United States)
  3. Rutgers Univ., Piscataway, NJ (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1739976
Report Number(s):
LA-UR-19-29904
Journal ID: ISSN 2469-9950; TRN: US2205416
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B
Additional Journal Information:
Journal Volume: 101; Journal Issue: 24; 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; strongly correlated systems; actinides; Fermi surface; electronic structure; first-principles calculations; Kondo effect; de Haas-van Alphen effect; DFT+DMFT; Gutzwiller approximation

Citation Formats

Tutchton, Roxanne M., Chiu, Wei-ting, Albers, Robert C., Kotliar, G., and Zhu, Jian-Xin. Electronic correlation induced expansion of Fermi pockets in δ-plutonium. United States: N. p., 2020. Web. doi:10.1103/physrevb.101.245156.
Tutchton, Roxanne M., Chiu, Wei-ting, Albers, Robert C., Kotliar, G., & Zhu, Jian-Xin. Electronic correlation induced expansion of Fermi pockets in δ-plutonium. United States. https://doi.org/10.1103/physrevb.101.245156
Tutchton, Roxanne M., Chiu, Wei-ting, Albers, Robert C., Kotliar, G., and Zhu, Jian-Xin. Tue . "Electronic correlation induced expansion of Fermi pockets in δ-plutonium". United States. https://doi.org/10.1103/physrevb.101.245156. https://www.osti.gov/servlets/purl/1739976.
@article{osti_1739976,
title = {Electronic correlation induced expansion of Fermi pockets in δ-plutonium},
author = {Tutchton, Roxanne M. and Chiu, Wei-ting and Albers, Robert C. and Kotliar, G. and Zhu, Jian-Xin},
abstractNote = {Plutonium is a critically important material as the behavior of its 5f electrons stands midway between the metalliclike itinerant character of the light actinides and localized atomic-core-like character of the heavy actinides. The δ phase of plutonium (δ-Pu), whereas still itinerant, has a large coherent Kondo peak and strong electronic correlations coming from its near-localized character. Here, using sophisticated Gutzwiller wave function and dynamical mean-field theory correlated theories, we study the Fermi surface and associated mass renormalizations of δ-Pu together with calculations of the de Haas–van Alphen frequencies. We find a large (~200%) correlation induced volume expansion in both the hole and the electron pockets of the Fermi surface in addition to an intermediate mass enhancement. All of the correlated electron theories predict, approximately, the same hole pocket placement in the Brillouin zone, which is different from that obtained in conventional density-functional band-structure theory, whereas the electron pockets from all theories are in, roughly, the same place.},
doi = {10.1103/physrevb.101.245156},
journal = {Physical Review. B},
number = 24,
volume = 101,
place = {United States},
year = {Tue Jun 23 00:00:00 EDT 2020},
month = {Tue Jun 23 00:00:00 EDT 2020}
}

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