Abstract (Dy0.5Mn0.5)(Mn1−xTix)O3 perovskite solid solutions with x = 0.5 and 0.75 were prepared by a high-pressure high-temperature method at 6 GPa and about 1570–1670 K. They have a GdFeO3-type perovskite structure with Pnma space group and random distributions of Dy3+ and Mn2+ cations at the A site, and Mn3+/2+ and Ti4+ cations at the B site. Their crystal structures were investigated using synchrotron X-ray powder diffraction at room temperature. The x = 0.5 sample shows a ferrimagnetic transition below TC = 50 K and dielectric constant of about 25 between 10 and 150 K. The x = 0.75 sample shows a ferrimagnetic-like transition below TC = 20 K and temperature-independent dielectric constant of about 100 between 10 and 250 K.

中文翻译：

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GdFeO3 型钙钛矿 (Dy0.5Mn0.5)(Mn1−Ti )O3 的高压合成、晶体结构以及磁性和介电性能，x = 0.5 和 0.75

摘要 (Dy0.5Mn0.5)(Mn1−xTix)O3 钙钛矿固溶体的 x = 0.5 和 0.75 是通过高压高温法在 6 GPa 和约 1570-1670 K 下制备的。它们具有 GdFeO3 型具有 Pnma 空间群的钙钛矿结构，A 位的 Dy3+ 和 Mn2+ 阳离子以及 B 位的 Mn3+/2+ 和 Ti4+ 阳离子随机分布。在室温下使用同步加速器 X 射线粉末衍射研究了它们的晶体结构。x = 0.5 样品显示低于 TC = 50 K 的亚铁磁转变和 10 到 150 K 之间约 25 的介电常数。 x = 0.75 样品显示低于 TC = 20 K 的类似亚铁磁转变，且与温度无关的介电常数约为100 介于 10 和 250 K 之间。