Magnetic properties of ZnO:Co layers obtained by pulsed laser deposition method-Reference-Cited by-同舟云学术

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

Published:2018-09-01 Issue:3 Volume:36 Page:439-444
ISSN:2083-134X
Container-title:Materials Science-Poland
language:en
Short-container-title:

Author:

Stefaniuk Ireneusz¹,Cieniek Bogumił¹,Rogalska Iwona¹,Virt Ihor S.²¹,Kościak Agnieszka¹

Affiliation:

1. Faculty of Mathematics and Natural Sciences University of Rzeszow , Rzeszow , Poland

2. The Ivan Franko State Pedagogical University in Drohobycz , Drohobycz , Ukraine

Abstract

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 TN = 50 K and TN = 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.

Publisher

Walter de Gruyter GmbH

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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