CaCu3Pt4O12: the first perovskite with the B site fully occupied by Pt(4+).
A novel A-site ordered perovskite CaCu(3)Pt(4)O(12) was synthesized under high pressure and high temperature of 12 GPa and 1250 degrees C. CaCu(3)Pt(4)O(12) is the first perovskite in which the B site is fully occupied by Pt(4+). The crystal structure refinement based on the synchrotron powder X-ray diffraction data shows that CaCu(3)Pt(4)O(12) crystallizes in the space group Im3 (cubic) with a lattice constant of a = 7.48946(10) A. The magnetic susceptibility data show the antiferromagnetic transition at T(N) = 40 K, which is attributed to the magnetic ordering of Cu(2+) spins with S = 1/2.
Yamada
Ikuya
I
Department of Chemistry, Graduate School of Science and Engineering, Ehime University, 2-5 Bunky-cho, Matsuyama, Ehime 790-8577, Japan. ikuya@chem.sci.ehime-u.ac.jp
Takahashi
Yuka
Y
Ohgushi
Kenya
K
Nishiyama
Norimasa
N
Takahashi
Ryoji
R
Wada
Kohei
K
Kunimoto
Takehiro
T
Ohfuji
Hiroaki
H
Kojima
Yohei
Y
Inoue
Toru
T
Irifune
Tetsuo
T