Itinerant magnetism in metallic CuFe2Ge2

Shanavas, K. V.; Singh, David J.; He, Ruihua

doi:10.1371/journal.pone.0121186

Itinerant magnetism in metallic CuFe₂Ge₂

Journal Article · Wed Mar 25 00:00:00 EDT 2015 · PLoS ONE

DOI:https://doi.org/10.1371/journal.pone.0121186· OSTI ID:1185908

Shanavas, K. V. ^[1]; Singh, David J. ^[1]; He, Ruihua ^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Boston College, Chestnut Hill, MA (United States)

Theoretical calculations are performed to understand the electronic structure and magnetic properties of CuFe₂Ge₂. The band structure reveals large electron density N(E_F) at the Fermi level suggesting a strong itinerant character of magnetism. The Fermi surface is dominated by two dimensional sheet like structures, with potentially strong nesting between them. The magnetic ground state appears to be ferromagnetic along a and antiferromagnetic in other directions. The results show that CuFe₂Ge₂ is an antiferromagnetic metal, with similarities to the Fe-based superconductors; such as magnetism with substantial itinerant character and coupling between magnetic order and electrons at the Fermi energy.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1185908

Journal Information:: PLoS ONE, Journal Name: PLoS ONE Journal Issue: 3 Vol. 10; ISSN 1932-6203

Publisher:: Public Library of ScienceCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (1)

Competing magnetic ground states and their coupling to the crystal lattice in CuFe2Ge2 May, Andrew F.; Calder, Stuart; Parker, David S. Scientific Reports, Vol. 6, Issue 1 https://doi.org/10.1038/srep35325	journal	October 2016

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Related Subjects

36 MATERIALS SCIENCE
crystal structure
density functional theory
electron density
ground state
magnetic properties
magnetism
melting
superconductors