Intrinsic defects and grain boundaries formulated magnetism and dielectric response in ZnO:(Mn + Tb) nanocrystals

Adil Murtaza; Xianghao Song; Awais Ghani; Wen liang Zuo; Fazal Kabir; Azhar Saeed; Muhammad Yaseen; Kaili Li; Sen Yang

doi:10.1016/j.matlet.2023.134364

Intrinsic defects and grain boundaries formulated magnetism and dielectric response in ZnO:(Mn + Tb) nanocrystals

Adil Murtaza
, Xianghao Song
, Awais Ghani
, Wen liang Zuo
, Fazal Kabir
, Azhar Saeed
, Muhammad Yaseen
, Kaili Li
, Sen Yang

School of Physics

Xi'an Jiaotong University
University of Agriculture Faisalabad

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Herein, Zn_0.98-xMn_0.02Tb_xO (x = 3%, 5%) nanocrystals with wurtzite hexagonal structure and average crystallite size of 25–27 nm were prepared by the sol–gel process, those exhibit ferromagnetism (FM) at room temperature. Morphological studies show that the fine nanocrystals are separated by grain boundaries. The photoluminescence spectra show that Tb/Mn co-doping induced various intrinsic defects in these nanocrystals. The dielectric properties were measured at room temperature as a function of frequency. The underlying origin of the observed FM and dielectric behavior was investigated.

Original language	English
Article number	134364
Journal	Materials Letters
Volume	343
DOIs	https://doi.org/10.1016/j.matlet.2023.134364
State	Published - 15 Jul 2023

Keywords

Dielectric Constant
Ferromagnetism
Grain boundaries
Oxygen vacancies
ZnO

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10.1016/j.matlet.2023.134364

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title = "Intrinsic defects and grain boundaries formulated magnetism and dielectric response in ZnO:(Mn + Tb) nanocrystals",

abstract = "Herein, Zn0.98-xMn0.02TbxO (x = 3\%, 5\%) nanocrystals with wurtzite hexagonal structure and average crystallite size of 25{\textendash}27 nm were prepared by the sol{\textendash}gel process, those exhibit ferromagnetism (FM) at room temperature. Morphological studies show that the fine nanocrystals are separated by grain boundaries. The photoluminescence spectra show that Tb/Mn co-doping induced various intrinsic defects in these nanocrystals. The dielectric properties were measured at room temperature as a function of frequency. The underlying origin of the observed FM and dielectric behavior was investigated.",

keywords = "Dielectric Constant, Ferromagnetism, Grain boundaries, Oxygen vacancies, ZnO",

author = "Adil Murtaza and Xianghao Song and Awais Ghani and Zuo, \{Wen liang\} and Fazal Kabir and Azhar Saeed and Muhammad Yaseen and Kaili Li and Sen Yang",

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doi = "10.1016/j.matlet.2023.134364",

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TY - JOUR

T1 - Intrinsic defects and grain boundaries formulated magnetism and dielectric response in ZnO:(Mn + Tb) nanocrystals

AU - Murtaza, Adil

AU - Song, Xianghao

AU - Ghani, Awais

AU - Zuo, Wen liang

AU - Kabir, Fazal

AU - Saeed, Azhar

AU - Yaseen, Muhammad

AU - Li, Kaili

AU - Yang, Sen

PY - 2023/7/15

Y1 - 2023/7/15

N2 - Herein, Zn0.98-xMn0.02TbxO (x = 3%, 5%) nanocrystals with wurtzite hexagonal structure and average crystallite size of 25–27 nm were prepared by the sol–gel process, those exhibit ferromagnetism (FM) at room temperature. Morphological studies show that the fine nanocrystals are separated by grain boundaries. The photoluminescence spectra show that Tb/Mn co-doping induced various intrinsic defects in these nanocrystals. The dielectric properties were measured at room temperature as a function of frequency. The underlying origin of the observed FM and dielectric behavior was investigated.

AB - Herein, Zn0.98-xMn0.02TbxO (x = 3%, 5%) nanocrystals with wurtzite hexagonal structure and average crystallite size of 25–27 nm were prepared by the sol–gel process, those exhibit ferromagnetism (FM) at room temperature. Morphological studies show that the fine nanocrystals are separated by grain boundaries. The photoluminescence spectra show that Tb/Mn co-doping induced various intrinsic defects in these nanocrystals. The dielectric properties were measured at room temperature as a function of frequency. The underlying origin of the observed FM and dielectric behavior was investigated.

KW - Dielectric Constant

KW - Ferromagnetism

KW - Grain boundaries

KW - Oxygen vacancies

KW - ZnO

UR - https://www.scopus.com/pages/publications/85152226152

U2 - 10.1016/j.matlet.2023.134364

DO - 10.1016/j.matlet.2023.134364

M3 - 文章

AN - SCOPUS:85152226152

SN - 0167-577X

VL - 343

JO - Materials Letters

JF - Materials Letters

M1 - 134364

ER -

Intrinsic defects and grain boundaries formulated magnetism and dielectric response in ZnO:(Mn + Tb) nanocrystals

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Keywords

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