水热法合成具有可控磁性能的稀土铁石榴石微/纳米结构粉末及薄膜

Hydrothermal Synthesis of Various Magnetic Properties of Controlled Micro/Nanostructured Powders and Films of Rare-Earth Iron Garnet.

作者信息

Tsidaeva Natalia, Nakusov Ahsarbek, Khaimanov Spartak, Wang Wei

机构信息

Scientific Center "Magnetic Nanostructures", North Caucasus Mining and Metallurgical Institute, State Technological University, 44, Nikolaeva str., 362021 Vladikavkaz, Russia.

Department of Physics and Electronics, School of Mathematics and Physics, Beijing University of Chemical Technology, Beijing 100029, China.

出版信息

Nanomaterials (Basel). 2021 Apr 10;11(4):972. doi: 10.3390/nano11040972.

DOI:10.3390/nano11040972

PMID:33920099

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8069455/

Abstract

In this study, the synthesis and magnetic properties of the rare-earth iron garnets SmFeO, PrFeO, and ErFeO (in the form of powders and thin films) are reported. According to the composition, shape, and size of particles, the optimal precipitant for the synthesis of SmFeO, PrFeO, and ErFeO films is an aqueous solution. The parameters for the synthesis of powders and films of the rare-earth iron garnets with micro- and nano-particles have been investigated and selected. The magnetic properties of these materials were studied; field dependencies of the magnetic moment (hysteresis loops) of nanostructured powders of iron garnets of samarium, praseodymium, and erbium in the range of +20 kOe to -20 kOe were obtained. The structural features of the AlO substrate on which the films were formed are also shown.

摘要

本研究报道了稀土铁石榴石SmFeO、PrFeO和ErFeO（粉末和薄膜形式）的合成及磁性。根据颗粒的组成、形状和尺寸，合成SmFeO、PrFeO和ErFeO薄膜的最佳沉淀剂是水溶液。研究并选择了合成具有微米和纳米颗粒的稀土铁石榴石粉末和薄膜的参数。研究了这些材料的磁性；获得了钐、镨和铒铁石榴石纳米结构粉末在+20 kOe至 -20 kOe范围内磁矩的场依赖性（磁滞回线）。还展示了形成薄膜的AlO衬底的结构特征。