title: Antiferromagnetic interaction between A'-site Mn spins in A-site-ordered perovskite YMn3Al4O12.
abstract: The A-site-ordered perovskite YMn(3)Al(4)O(12) was prepared by high-pressure synthesis. Structural analysis with synchrotron powder X-ray diffraction data and the Mn L-edges X-ray absorption spectrum revealed that the compound has a chemical composition Y(3+)Mn(3+)(3)Al(3+)(4)O(2-)(12) with magnetic Mn(3+) at the A' site and non-magnetic Al(3+) at the B site. An antiferromagnetic interaction between the A'-site Mn(3+) spins is induced by the nearest neighboring Mn-Mn direct exchange interaction and causes an antiferromagnetic transition at 34.3 K.
authors.affiliation: Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan. tohyama@msk.kuicr.kyoto-u.ac.jp
authors.forename: Takenori
authors.initials: T
authors.lastname: Tohyama
authors.forename: Takashi
authors.initials: T
authors.lastname: Saito
authors.forename: Masaichiro
authors.initials: M
authors.lastname: Mizumaki
authors.forename: Akane
authors.initials: A
authors.lastname: Agui
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Shimakawa