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Magnetic properties of ZnO:Co layers obtained by pulsed laser deposition method

Content Provider	Scilit
Author	Stefaniuk, Ireneusz Cieniek, Bogumił Rogalska, Iwona Virt, Ihor S. Kościak, Agnieszka
Copyright Year	2018
Abstract	We have studied magnetic properties of zinc oxide (ZnO) composite doped with Co ions. The samples were obtained by pulsed laser deposition (PLD) method. Electron magnetic resonance (EMR) measurements were carried out and temperature dependence of EMR spectra was obtained. Analysis of temperature dependence of the integral intensity of EMR spectra was carried out using Curie-Weiss law. Reciprocal of susceptibility of an antiferromagnetic (AFM) material shows a discontinuity at the Néel temperature and extrapolation of the linear portion to negative Curie temperature. The results of temperature dependence of EMR spectra for the ZnO:Co sample and linear extrapolation to the Curie-Weiss law indicated the AFM interaction between Co ions characterized by the Néel temperatures T_N = 50 K and T_N = 160 K for various samples. The obtained g-factor is similar to g-factors of nanocrystals presented in literature, and the results confirm that in the core of these nanocrystals Co was incorporated as Co²⁺, occupying Zn²⁺ sites in wurtzite structure of ZnO.
Related Links	https://content.sciendo.com/downloadpdf/journals/msp/36/3/article-p439.pdf https://content.sciendo.com/downloadpdf/journals/msp/ahead-of-print/article-10.1515-msp-2017-0114.pdf
Ending Page	444
Page Count	6
Starting Page	439
ISSN	20831331
e-ISSN	2083134X
DOI	10.1515/msp-2017-0114
Journal	Materials Science-Poland
Issue Number	3
Volume Number	36
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	2018-09-01
Access Restriction	Open
Subject Keyword	Materials Science-poland Condensed Matter Physics Structure Zno Laser Nanocrystals Curie Pulsed Temperature Dependence Emr Spectra Journal: Materials Science-Poland, Issue- 3
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Materials Science Mechanical Engineering

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