Phys. Rev. Lett. 50, 123–126 (1983)Electronic and Magnetic Properties of Europium-Intercalated GraphiteReceived 28 September 1982; published in the issue dated 10 January 1983 Stage-1 Eu-intercalated graphite EuC6 was studied by Mössbauer and L-edge spectroscopy. Isomer shift and LIII-edge position results indicate the divalent state for Eu. Below 40 K, EuC6 orders antiferromagnetically with the Eu spins oriented perpendicular to c⃗ and a magnetic hyperfine field saturating at - 10.7 T. The large electric field gradient at the Eu site (-1.4×1018 V/cm2), with axis parallel to c⃗, is consistent with the structure of EuC6 and a partial charge transfer from Eu to the C planes. © 1983 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.50.123
DOI:
10.1103/PhysRevLett.50.123
PACS:
75.30.Kz, 76.80.+y, 78.70.Dm
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