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Title: Evolution of Micro-structure and Magnetic Properties in L1{sub 0} CoPt Nanoparticles by Au Addition

Abstract

L1{sub 0} CoPt-Au nanoparticles with face-centered tetragonal (FCT) structure were synthesized by sol-gel technique at 700°C. The micro-structure and magnetism of L1{sub 0} CoPt-Au were measured by different measuring technologies. The influences of Au on the micro-structure and magnetism of L1{sub 0} CoPt nanoparticles were investigated. The Au addition promoted the formation of ordered L1{sub 0} phase CoPt nanoparticles and improved the grain size of L1{sub 0} CoPt nanoparticles When the Au content increased to 10 at.%, coercivity increased and saturation magnetization decreased, which may be originated from the increased order degree and ferrimagnetic nature of L1{sub 0} CoPt nanoparticles. Interestingly, when the Au addition was more than 10 at.%, the coercivity decreased due to the decrease of the order degree.

Authors:
; ; ; ; ; ; ;  [1]
  1. Jilin Normal University, Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education (China)
Publication Date:
OSTI Identifier:
22773901
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 8; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COBALT COMPOUNDS; COERCIVE FORCE; FERRIMAGNETISM; GOLD ADDITIONS; GRAIN SIZE; MAGNETIC PROPERTIES; MAGNETIZATION; NANOPARTICLES; SOL-GEL PROCESS; SYNTHESIS

Citation Formats

Zhang, Xiaolong, Zhang, Fan, Zhang, Yuanyuan, Kou, Qiangwei, Liu, Yang, Chen, Lei, Wang, Yaxin, and Zhang, Yongjun. Evolution of Micro-structure and Magnetic Properties in L1{sub 0} CoPt Nanoparticles by Au Addition. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4479-5.
Zhang, Xiaolong, Zhang, Fan, Zhang, Yuanyuan, Kou, Qiangwei, Liu, Yang, Chen, Lei, Wang, Yaxin, & Zhang, Yongjun. Evolution of Micro-structure and Magnetic Properties in L1{sub 0} CoPt Nanoparticles by Au Addition. United States. doi:10.1007/S10948-017-4479-5.
Zhang, Xiaolong, Zhang, Fan, Zhang, Yuanyuan, Kou, Qiangwei, Liu, Yang, Chen, Lei, Wang, Yaxin, and Zhang, Yongjun. Wed . "Evolution of Micro-structure and Magnetic Properties in L1{sub 0} CoPt Nanoparticles by Au Addition". United States. doi:10.1007/S10948-017-4479-5.
@article{osti_22773901,
title = {Evolution of Micro-structure and Magnetic Properties in L1{sub 0} CoPt Nanoparticles by Au Addition},
author = {Zhang, Xiaolong and Zhang, Fan and Zhang, Yuanyuan and Kou, Qiangwei and Liu, Yang and Chen, Lei and Wang, Yaxin and Zhang, Yongjun},
abstractNote = {L1{sub 0} CoPt-Au nanoparticles with face-centered tetragonal (FCT) structure were synthesized by sol-gel technique at 700°C. The micro-structure and magnetism of L1{sub 0} CoPt-Au were measured by different measuring technologies. The influences of Au on the micro-structure and magnetism of L1{sub 0} CoPt nanoparticles were investigated. The Au addition promoted the formation of ordered L1{sub 0} phase CoPt nanoparticles and improved the grain size of L1{sub 0} CoPt nanoparticles When the Au content increased to 10 at.%, coercivity increased and saturation magnetization decreased, which may be originated from the increased order degree and ferrimagnetic nature of L1{sub 0} CoPt nanoparticles. Interestingly, when the Au addition was more than 10 at.%, the coercivity decreased due to the decrease of the order degree.},
doi = {10.1007/S10948-017-4479-5},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 8,
volume = 31,
place = {United States},
year = {2018},
month = {8}
}