Observation of Room Temperature Ferromagnetism in InN Nanostructures

被引：7

作者：

Roul, Basanta ^{[1
,2
]}

Kumar, Mahesh ^{[1
,3
]}

Bhat, Thirumaleshwara N. ^{[1
]}

Rajpalke, Mohana K. ^{[1
]}

Krupanidhi, S. B. ^{[1
]}

Kumar, Nitesh ^{[4
]}

Sundaresan, A. ^{[4
]}

机构：

[1] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India

[2] Bharat Elect, Cent Res Lab, Bangalore 560013, Karnataka, India

[3] Indian Inst Technol, Ctr Excellence Informat & Commun Technol, Jodhpur 342011, Rajasthan, India

[4] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2015年 / 15卷 / 06期

关键词：

InN; Nanostructures; Ferromagnetism; MBE; NANOPARTICLES; NANOMATERIALS; NANOCRYSTALS;

D O I：

10.1166/jnn.2015.9719

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The room temperature ferromagnetic behavior of InN nanosfructures grown by molecular beam epitaxy (MBE) is explored by means of magnetization measurements. The saturation magnetization and remanent magnetization are found to be strongly dependent on the size of the nanostructures. This suggests that the ferromagnetism is essentially confined to the surface of the nanostructures due to the possible defects. Raman spectroscopy shows the existence of indium vacancies which could be the source of ferromagnetic ordering in InN nanostructures.

引用

页码：4426 / 4430

页数：5

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