Bulk magnetic order in a two dimensional Ni1+/Ni2+ (d9/d8) nickelate, isoelectronic with superconducting cuprates

Abstract

Bulk magnetic order in two dimensional La4Ni3O8 nickelate with Ni1+/Ni2+ (d9/d8), isoelectronic with superconducting cuprates is demonstrated experimentally and theoretically. Magnetization, specific heat and 139La NMR evidence a transition at 105 K to an antiferromagnetic state. Theoretical calculations by DFT relate the transition to a nesting instability of the Fermi surface with ordering wave-vector Q = [1/3, 1/3, 0].

References in corpus (3)

• Orbital order and possible superconductivity in LaNiO3/LaMO3 superlattices
• On the electronic structure of electron doped LaOFeAs as seen by X-ray absorption spectroscopy
• Local Structure of Thermoelectric Ca3Co4O9

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