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- W2786488889 abstract "The electronic configuration of Eu${}^{+2}$ is 4${f}^{7}$ with spin $S$=7/2 and angular momentum $L$=0. Thus, the paramagnetic effective moment is expected and usually found to be ${ensuremath{mu}}_{text{eff}}$ $ensuremath{approx}$ 7.94 ${ensuremath{mu}}_{text{B}}$/Eu. Instead, crystals of the helical antiferromagnet EuCo${}_{2}$As${}_{2}$ exhibit ${ensuremath{mu}}_{text{eff}}$ $ensuremath{approx}$ 8.5 ${ensuremath{mu}}_{text{B}}$/Eu. $Aphantom{rule{0}{0ex}}b$ $iphantom{rule{0}{0ex}}nphantom{rule{0}{0ex}}iphantom{rule{0}{0ex}}tphantom{rule{0}{0ex}}iphantom{rule{0}{0ex}}o$ calculations show that this enhancement arises from ferromagnetic polarization of the conduction electron spins around each Eu spin. Agreement of the anisotropic magnetic susceptibility of the Eu helix in EuCo${}_{2}$As${}_{2}$ with unified molecular field theory is also found." @default.
- W2786488889 created "2018-02-23" @default.
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- W2786488889 date "2018-04-06" @default.
- W2786488889 modified "2023-10-15" @default.
- W2786488889 title "Enhanced moments of Eu in single crystals of the metallic helical antiferromagnet<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>EuCo</mml:mi><mml:mrow><mml:mn>2</mml:mn><mml:mo>−</mml:mo><mml:mi>y</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>As</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>" @default.
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- W2786488889 doi "https://doi.org/10.1103/physrevb.97.144403" @default.
- W2786488889 hasPublicationYear "2018" @default.
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