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Author:

Cui, Yanguang (Cui, Yanguang.) | Guo, Yunlong (Guo, Yunlong.) | Li, Yangxin (Li, Yangxin.) | Wan, Jianfeng (Wan, Jianfeng.) | Zhang, Jihua (Zhang, Jihua.) | Rong, Yonghua (Rong, Yonghua.) | Chen, Nailu (Chen, Nailu.) | Wang, Dong (Wang, Dong.) | Wang, Yunzhi (Wang, Yunzhi.)

Indexed by:

SCIE EI Scopus

Abstract:

To reveal the origin of modulus anomaly over a wide temperature range (about 240 K) observed in Mn0.70Fe0.25Cu0.05 alloy, a phase-field model considering antiferromagnetic (AF) transition with doping Fe was established, in which the average modulus is considered as a functional of order parameter. Simulation reveals that the pining effect by doping Fe leads to the increase of low spin non-collinear AF domain walls (LS), meanwhile, the LS domain walls gradually evolve to high spin collinear AF domains (HS) with lowering temperature, accompanying the growth of HS domains and the decrease of modulus, and vice versa. Such a dynamic antiferromagnetic domain size (DAFDZ) effect gives rise to modulus anomaly, while the proper volume ratio of LS and HS is a crucial factor for the wide temperature range of modulus anomaly. (C) 2017 Elsevier B.V. All rights reserved.

Keyword:

Antiferromagnetic transition Modulus anomaly Phase-field method

Author Community:

  • [ 1 ] [Cui, Yanguang; Guo, Yunlong] Shanghai Jiao Tong Univ, UM SJTU Joint Inst, Dongchuan Rd 800, Shanghai 200240, Peoples R China
  • [ 2 ] [Li, Yangxin; Wan, Jianfeng; Zhang, Jihua; Rong, Yonghua; Chen, Nailu] Shanghai Jiao Tong Univ, Sch Mat Sci Engn, Shanghai 200240, Peoples R China
  • [ 3 ] [Wang, Dong] Xi An Jiao Tong Univ, Ctr Computat Study Microstruct Evolut Mat, Frontier Inst Sci & Technol, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 4 ] [Wang, Dong] Xi An Jiao Tong Univ, Multidisciplinary Mat Res Ctr, Frontier Inst Sci & Technol, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 5 ] [Wang, Yunzhi] Ohio State Univ, Dept Mat Sci & Engn, 2041 Coll Rd, Columbus, OH 43210 USA
  • [ 6 ] [Cui, Yanguang]Shanghai Jiao Tong Univ, UM SJTU Joint Inst, Dongchuan Rd 800, Shanghai 200240, Peoples R China
  • [ 7 ] [Guo, Yunlong]Shanghai Jiao Tong Univ, UM SJTU Joint Inst, Dongchuan Rd 800, Shanghai 200240, Peoples R China
  • [ 8 ] [Li, Yangxin]Shanghai Jiao Tong Univ, Sch Mat Sci Engn, Shanghai 200240, Peoples R China
  • [ 9 ] [Wan, Jianfeng]Shanghai Jiao Tong Univ, Sch Mat Sci Engn, Shanghai 200240, Peoples R China
  • [ 10 ] [Zhang, Jihua]Shanghai Jiao Tong Univ, Sch Mat Sci Engn, Shanghai 200240, Peoples R China
  • [ 11 ] [Rong, Yonghua]Shanghai Jiao Tong Univ, Sch Mat Sci Engn, Shanghai 200240, Peoples R China
  • [ 12 ] [Chen, Nailu]Shanghai Jiao Tong Univ, Sch Mat Sci Engn, Shanghai 200240, Peoples R China
  • [ 13 ] [Wang, Dong]Xi An Jiao Tong Univ, Ctr Computat Study Microstruct Evolut Mat, Frontier Inst Sci & Technol, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 14 ] [Wang, Dong]Xi An Jiao Tong Univ, Multidisciplinary Mat Res Ctr, Frontier Inst Sci & Technol, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 15 ] [Wang, Yunzhi]Ohio State Univ, Dept Mat Sci & Engn, 2041 Coll Rd, Columbus, OH 43210 USA

Reprint Author's Address:

  • Shanghai Jiao Tong Univ, Sch Mat Sci Engn, Shanghai 200240, Peoples R China.

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Source :

COMPUTATIONAL MATERIALS SCIENCE

ISSN: 0927-0256

Year: 2017

Volume: 140

Page: 89-94

2 . 5 3

JCR@2017

3 . 3 0 0

JCR@2020

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:217

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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