论文标题
smfeo3中的结晶石大小依赖谐波磁电磁性
Crystallite-size Dependent Harmonic Magneto-electricity in SmFeO3
论文作者
论文摘要
第一和第二谐波的介电敏感性在介质/500 nm的samarium orthoferrite上进行了熟练研究，纳米镜/55 nm差异。磁性电源与抗磁磁性和自旋逆转转变，基本和谐波介电性始终反映了依赖性电量的整体/局部极化效应。纳米镜和介观结晶石中的大量和初始铁电性都同意较高的抗铁磁有序（T_N〜670 K）。在下温度（T_SR〜470 K）处的自旋抗衡转变后，纳米晶体中的重点放松状态以及中等含量的纳米晶体和类似散装/温度窗口的铁电性在中间的生长晶体中出现。在纳米晶状体中，界面旋转的磁带磁带（T_SP〜540 K）的磁电特征专门通过缩放式 - 荷尔马克语揭示。
First- and second-harmonic dielectric susceptibilities are maidenly studied on Samarium Orthoferrite of mesoscopic/500 nm and nanoscopic/55 nm grainsizes. Magneto-electrically coupled to the antiferromagnetic and spin-reorientation transitions, fundamental and harmonic dielectricity consistently reflect the global/local polarization effects of crystallite-size dependent electrical orderings. Bulk and incipient ferroelectricity respectively in nanoscopic and mesoscopic crystallites concur the higher-temperature antiferromagnetic ordering (T_N ~670 K). Upon the spin-reorientation transition at lower-temperature (T_SR ~470 K), re-entrant relaxor state in the nano-crystallites and bulk-like/temperature-windowed ferroelectricity in the meso-crystallites emerge. In the nano-crystallites, magneto-electric signature of interfacial spins' de-pinning (T_SP ~540 K) is exclusively revealed by the scaled-harmonics.
