Oka Kengo, Yamada Ikuya, Azuma Masaki, Takeshita Soshi, Satoh Kohki H, Koda Akihiro, Kadono Ryosuke, Takano Mikio, Shimakawa Yuichi
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
Inorg Chem. 2008 Aug 18;47(16):7355-9. doi: 10.1021/ic800649a. Epub 2008 Jul 22.
The magnetic properties of PbVO 3, a PbTiO 3-type perovskite with a large tetragonal distortion ( c/a = 1.229), were investigated. The temperature dependence of the measured magnetization of multidomain single-crystal samples showed a broad maximum centered around 180 K, indicating a two-dimensional antiferromagnetism. muSR measurement revealed the presence of a long-range order below 43 K. The two-dimensional magnetism is due to the ordering of d xy orbitals, which is thought to also be related to the large tetragonal distortion of PbVO 3.
对具有大四方畸变（c/a = 1.229）的钙钛矿型PbTiO₃结构的PbVO₃的磁性进行了研究。多畴单晶样品测量磁化强度的温度依赖性显示，在180 K左右有一个宽的最大值，表明存在二维反铁磁性。μSR测量揭示了在43 K以下存在长程有序。二维磁性归因于dxy轨道的有序排列，这被认为也与PbVO₃的大四方畸变有关。
