Structure and magnetic properties of flower-like α-NiS nanostructures

被引：37

作者：

Tang, Chunjuan ^{[1
]}

Zang, Chunhe ^{[1
]}

Su, Jianfeng ^{[1
]}

Zhang, Dongmei ^{[1
]}

Li, Guanghai ^{[2
]}

Zhang, Yongsheng ^{[1
]}

Yu, Ke ^{[3
,4
]}

机构：

[1] Luoyang Inst Sci & Technol, Dept Math & Phys, Luoyang 471023, Peoples R China

[2] Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Peoples R China

[3] E China Normal Univ, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China

[4] E China Normal Univ, Dept Elect Engn, Shanghai 200241, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 08期

关键词：

Inorganic compounds; Nanostructures; Chemical synthesis; Magnetic properties; TO-SEMICONDUCTOR TRANSITION; NICKEL SULFIDE; METAL; NANOPARTICLES;

D O I：

10.1016/j.apsusc.2010.11.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper we report the structure and magnetic properties of flower-like alpha-NiS nanostructure prepared by a facile one-step hydrothermal method. The flowers consist of polycrystalline nanoflakes, and the nanoflakes are composed of single crystalline nanocrystals with an average size of about 15 nm. The alpha-NiS flowers exhibit the transition from paramagnetism to ferromagnetism with the blocking temperature of about 12 K. The field dependences of the magnetization prove that these flowers demonstrate a coexistence of antiferromagnetism and ferromagnetism at 5K, and exhibit a strong paramagnetic response at temperature higher than 100 K. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：3388 / 3391

页数：4

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