et al.

Hadermann, Joke

Lokshin, Konstantin A.

Nevidomskyy, Andriy H.

Poltavets, Viktor V.

Van Tendeloo, Gustaaf

Abstract: The Ni(1+)/Ni(2+) states of nickelates have the identical (3d(9)/3d(8)) electronic configuration as Cu(2+)/Cu(3+) in the high temperature superconducting cuprates, and are expected to show interesting properties. An intriguing question is whether mimicking the electronic and structural features of cuprates would also result in superconductivity in nickelates. Here we report experimental evidence for a bulklike magnetic transition in La(4)Ni(3)O(8) at 105 K. Density functional theory calculations relate the transition to a spin density wave nesting instability of the Fermi surface

Bulk magnetic order in a two-dimensional <tex>Ni^{1+}/Ni^{2+} $</tex> (<tex>d^{9}/d^{8}$ </tex>) nickelate, isoelectronic with superconducting cuprates

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