Issue 19, 2011
From the journal:

CrystEngComm

CdS:Co diluted magnetic semiconductor nanocrystals: synthesis and ferromagnetism study†

Tingting Hu,a   Mingzhe Zhang,*a   Sidong Wang,a   Qunji Shi,a   Guangliang Cuia  and  Shishuai Suna  

* Corresponding authors

a State Key Laboratory of Superhard Materials, Jilin University, Changchun, China
E-mail: zhangmz@jlu.edu.cn
Fax: +86-431-85166089
Tel: +86-431-85166089

Abstract

A novel method was developed to prepare zinc blende structure CdS:Co diluted magnetic semiconductor nanocrystals. The prepared samples display ferromagnetic behavior with a crystal size of about 3–4 nm. First-principle calculations show the phenomenon of ferromagnetism in CdS:Co nanocrystals arising not only from the Co atoms, but also from the Cd vacancies, with Co atoms being the major contributor. The introduction of Co atoms into CdS significantly reduces the formation energy of Cd vacancies, producing a lot of vacancies which enhance the ferromagnetism of the samples as a whole.

Graphical abstract: CdS:Co diluted magnetic semiconductor nanocrystals: synthesis and ferromagnetism study

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Article information

DOI
https://doi.org/10.1039/C1CE05593C
Article type
Communication
Submitted
19 May 2011
Accepted
23 Jun 2011
First published
22 Jul 2011

CrystEngComm, 2011,13, 5646-5649

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CdS:Co diluted magnetic semiconductor nanocrystals: synthesis and ferromagnetism study

T. Hu, M. Zhang, S. Wang, Q. Shi, G. Cui and S. Sun, CrystEngComm, 2011, 13, 5646 DOI: 10.1039/C1CE05593C

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