The High Pressure Synthesis and Properties of La0.3Sr0.7CrO3
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摘要: 采用高压高温方法合成了单相的带宽调控型La0.3Sr0.7CrO3 Mott化合物,对其晶体结构和磁学性质进行了研究。结果表明:La0.3Sr0.7CrO3化合物具有立方钙钛矿晶体结构,温度在170 K以上其磁性为顺磁性,满足居里-外斯定律,温度低于20.7 K发生了自旋玻璃转变。
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关键词:
- 高压高温合成 /
- La0.3Sr0.7CrO3 /
- 钙钛矿
Abstract: We synthesizedLa0.3Sr0.7CrO3 Mott compound by using high pressure and high temperature sintering method; and studied the crystal structure and magnetic properties. It is shown that La0.3Sr0.7CrO3 adopts a cubic perovskite structure at room temperature. Above 170 K La0.3Sr0.7CrO3 is paramagnetism with the (T) curve being fitted by Curie-Weiss law, while a spin glass transition was found in La0.3Sr0.7CrO3 below 20.7 K.-
Key words:
- high pressure and high temperature synthesis /
- La0.3Sr0.7CrO3 /
- perovskite
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