Curie temperature measurements on KTiOPO4 single crystals grown by flux and hydrothermal techniques
Curie temperature measurements on KTiOPO4 single crystals grown by flux and hydrothermal techniques
复制标题
通过助熔剂和水热技术生长的 KTiOPO4 单晶的居里温度测量
DOI：
10.1080/00150199108014472
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
M. Fejer
中科院分区：
文献类型：
--
作者：
P. Bordui;R. Norwood;M. Fejer
测量了多种KTiOPO 4晶体的居里温度，其范围为947 ~ 960°C。Tc一般高于水热比助熔剂生长的晶体。随着持续的测量，Tc下降的热液样品和增加的助熔剂生长的样品。对于这两种类型的样品，在连续居里测量24小时后，在吸收光谱中在2.814 μm处出现额外的偏振敏感线。Tc在KTiOPO 4被发现是一个敏感的函数的测量参数，包括在温度下的时间，样品厚度，施加的电场，和周围的气氛。
Abstract Curie temperatures of a variety of KTiOPO4 crystals were measured to range from 947 to 960°C. Tc was generally higher for hydrothermal than for flux-grown crystals. With continued measurement, Tc decreased for hydrothermal samples and increased for flux-grown samples. For both types of samples, after 24 hours of continuous Curie measurement an additional polarization-sensitive line appeared in the absorption spectrum at 2.814 μm. Tc in KTiOPO4 was found to be a sensitive function of measurement parameters including time at temperature, sample thickness, applied electric field, and surrounding atmosphere.