Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopy

Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopy

Mechanically induced defect in high energy milled Cd0.3Zn0.7Se nanocrystals was investigated using electron spin resonance (ESR). The broad ESR component with g ∼ 2 was attributed to paramagnetic defects present in the milled powder. The spin density of the center increases linearly from ∼1 × 1020 s...

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Main Authors: Ibrahim Bagudo Muh'd, Zainal A. Talib, Arash Akbari-Sharbaf
Format: Article
Language:English
Published: Elsevier 2017-01-01
Series:Results in Physics
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379717307179
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spelling doaj-2c693650d76044dba0298d8c76d95fbc2020-11-25T00:07:28ZengElsevierResults in Physics2211-37972017-01-01718831886Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopyIbrahim Bagudo Muh'd0Zainal A. Talib1Arash Akbari-Sharbaf2Department of Physics, Umaru Musa Yar’dua University, Katsina, Nigeria; Corresponding author.Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, MalaysiaDepartment of Physics and Astronomy, University of Western Ontario, London, Ontario N6A 3K7, CanadaMechanically induced defect in high energy milled Cd0.3Zn0.7Se nanocrystals was investigated using electron spin resonance (ESR). The broad ESR component with g ∼ 2 was attributed to paramagnetic defects present in the milled powder. The spin density of the center increases linearly from ∼1 × 1020 spins/g to 7 × 1020 spins/g with milling time. The most probable induced centers during mechanical milling were (VZn–Zni), VZn. The best simulations were produced for relative spin concentrations of three paramagnetic defects with ratio 3:6:10 for 5 h and 10 h milled samples. Keywords: Defects, Impurities, Point defects, Electron spin resonance, Nanomaterialshttp://www.sciencedirect.com/science/article/pii/S2211379717307179
collection DOAJ
language English
format Article
sources DOAJ
author Ibrahim Bagudo Muh'd
Zainal A. Talib
Arash Akbari-Sharbaf
spellingShingle Ibrahim Bagudo Muh'd
Zainal A. Talib
Arash Akbari-Sharbaf
Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopy
Results in Physics
author_facet Ibrahim Bagudo Muh'd
Zainal A. Talib
Arash Akbari-Sharbaf
author_sort Ibrahim Bagudo Muh'd
title Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopy
title_short Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopy
title_full Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopy
title_fullStr Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopy
title_full_unstemmed Evolution of structural defects in milled Cd0.3Zn0.7 Se powder studied by electron spin spectroscopy
title_sort evolution of structural defects in milled cd0.3zn0.7 se powder studied by electron spin spectroscopy
publisher Elsevier
series Results in Physics
issn 2211-3797
publishDate 2017-01-01
description Mechanically induced defect in high energy milled Cd0.3Zn0.7Se nanocrystals was investigated using electron spin resonance (ESR). The broad ESR component with g ∼ 2 was attributed to paramagnetic defects present in the milled powder. The spin density of the center increases linearly from ∼1 × 1020 spins/g to 7 × 1020 spins/g with milling time. The most probable induced centers during mechanical milling were (VZn–Zni), VZn. The best simulations were produced for relative spin concentrations of three paramagnetic defects with ratio 3:6:10 for 5 h and 10 h milled samples. Keywords: Defects, Impurities, Point defects, Electron spin resonance, Nanomaterials
url http://www.sciencedirect.com/science/article/pii/S2211379717307179
work_keys_str_mv AT ibrahimbagudomuhd evolutionofstructuraldefectsinmilledcd03zn07sepowderstudiedbyelectronspinspectroscopy
AT zainalatalib evolutionofstructuraldefectsinmilledcd03zn07sepowderstudiedbyelectronspinspectroscopy
AT arashakbarisharbaf evolutionofstructuraldefectsinmilledcd03zn07sepowderstudiedbyelectronspinspectroscopy
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