Synthesis and magnetic properties of samarium hydroxide nanocrystals

被引：9

作者：

Zheng, Xusheng ^{[1
]}

Song, Li ^{[1
]}

Liu, Shoujie ^{[1
]}

Hu, Tiandou ^{[2
]}

Chen, Jiafu ^{[3
]}

Chen, Xing ^{[1
]}

Marcelli, Augusto ^{[1
,4
]}

Saleem, Muhammad Farooq ^{[1
]}

Chu, Wangsheng ^{[1
,2
]}

Wu, Ziyu ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China

[2] Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China

[3] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

[4] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

来源：

NEW JOURNAL OF CHEMISTRY | 2015年 / 39卷 / 06期

基金：

中国国家自然科学基金;

关键词：

CERIA NANOCRYSTALS; LN; ER; DY; NANOPARTICLES; TEMPERATURE; TB; EU; GD; TM;

D O I：

10.1039/c4nj01682c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Samarium hydroxide (Sm(OH)(3)) is an important samarium compound with many potential applications in electronics, optics and catalysis. Based on a facile hydrothermal method assisted by oleic acid surface modifications we synthesized Sm(OH)(3) nanocrystals with various morphologies. In this system, by adding the oleic acid surfactant both crystallization and grain size of nanocrystals can be tuned. Furthermore, the paramagnetic resonance and magnetic measurements point out that rod-like Sm(OH)(3) samples are non-magnetic, while Sm(OH)(3) disc-like samples exhibit weak ferromagnetism. The correlation between magnetism and morphology in Sm(OH)(3) nanocrystals is associated with the surfactant-induced surface modification as well as with the changes in the localization of electrons in Sm 5d orbitals, in agreement with X-ray absorption spectroscopy data.

引用

页码：4972 / 4976

页数：5

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