Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous films

Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous films

Inducing oxygen into Co-Fe-Ta-B amorphous alloy system makes the transparent amorphous magnetic thin film (Co20Fe47Ta20B13)1-xOx. Oxygen content plays a major role in the magnetization properties of the films. Samples with x=0.41 have a large coercivity ∼1000 Oe, which is 20 times larger than the lo...

Full description

Bibliographic Details
Main Authors: Chengyue Xiong, Xiaozhong Zhang
Format: Article
Language:English
Published: AIP Publishing LLC 2020-02-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5130476
id doaj-7c7bc3dbbfa04d31bc8642dc87aecfe8
record_format Article
spelling doaj-7c7bc3dbbfa04d31bc8642dc87aecfe82020-11-25T02:03:35ZengAIP Publishing LLCAIP Advances2158-32262020-02-01102025037025037-510.1063/1.5130476Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous filmsChengyue Xiong0Xiaozhong Zhang1Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of ChinaKey Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of ChinaInducing oxygen into Co-Fe-Ta-B amorphous alloy system makes the transparent amorphous magnetic thin film (Co20Fe47Ta20B13)1-xOx. Oxygen content plays a major role in the magnetization properties of the films. Samples with x=0.41 have a large coercivity ∼1000 Oe, which is 20 times larger than the low oxygen content samples. The forming of a set of single domain magnetic granules rather than continuous magnetic film makes the different magnetization mechanisms. The deviation from Bloch law of saturation magnetization with temperature indicates the Bose-Einstein condensation occurring in magnetic nanostructures. According to the superparamagnetic theory, magnetic phase diagram of the system has been obtained. Monte-Carlo method is used for the simulation of the magnetization of a single domain magnetic granular system at a finite temperature. The simulation results match the experiment to some extent in magnetization-filed curve and field-cooling and zero-field-cooling magnetization curve. This work provides a systematical study of transparent amorphous magnetic thin film system and helps us to know better of this material.http://dx.doi.org/10.1063/1.5130476
collection DOAJ
language English
format Article
sources DOAJ
author Chengyue Xiong
Xiaozhong Zhang
spellingShingle Chengyue Xiong
Xiaozhong Zhang
Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous films
AIP Advances
author_facet Chengyue Xiong
Xiaozhong Zhang
author_sort Chengyue Xiong
title Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous films
title_short Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous films
title_full Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous films
title_fullStr Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous films
title_full_unstemmed Experiments and simulations on the magnetization of transparent Co-Fe-Ta-B-O heteroamorphous films
title_sort experiments and simulations on the magnetization of transparent co-fe-ta-b-o heteroamorphous films
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2020-02-01
description Inducing oxygen into Co-Fe-Ta-B amorphous alloy system makes the transparent amorphous magnetic thin film (Co20Fe47Ta20B13)1-xOx. Oxygen content plays a major role in the magnetization properties of the films. Samples with x=0.41 have a large coercivity ∼1000 Oe, which is 20 times larger than the low oxygen content samples. The forming of a set of single domain magnetic granules rather than continuous magnetic film makes the different magnetization mechanisms. The deviation from Bloch law of saturation magnetization with temperature indicates the Bose-Einstein condensation occurring in magnetic nanostructures. According to the superparamagnetic theory, magnetic phase diagram of the system has been obtained. Monte-Carlo method is used for the simulation of the magnetization of a single domain magnetic granular system at a finite temperature. The simulation results match the experiment to some extent in magnetization-filed curve and field-cooling and zero-field-cooling magnetization curve. This work provides a systematical study of transparent amorphous magnetic thin film system and helps us to know better of this material.
url http://dx.doi.org/10.1063/1.5130476
work_keys_str_mv AT chengyuexiong experimentsandsimulationsonthemagnetizationoftransparentcofetaboheteroamorphousfilms
AT xiaozhongzhang experimentsandsimulationsonthemagnetizationoftransparentcofetaboheteroamorphousfilms
_version_ 1724947214161149952

Similar Items