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Scaling of the magnetic entropy change in skyrmion material Fe0.5Co0.5Si
Han, Hui1,2; Menzel, Dirk3; Liu, Wei1,2; Ling, Langsheng1; Du, Haifeng1; Pi, Li1,4; Zhang, Changjin1; Zhang, Lei1; Zhang, Yuheng1,4
2017-10-01
Source PublicationMATERIALS RESEARCH BULLETIN
Volume94Pages:500-505
AbstractThe magnetic entropy change [Delta S-M(T, H)] around the phase transition temperature T-c is investigated by the scaling method for Fe0.5Co0.5Si, which exhibits a Skyrmion phase below T-c. The parameters of Delta S-M(T, H) exhibit field dependent behaviors. The Delta S-M(T, H) curves under high field can be well scaled into a single universal curve independent of external field and temperature. However, Delta S-M(T, H) curves under low field become divergent just below T-c, which indicates a characteristic of first-order transition. The scaling investigation of Delta S-M(T, H) curves indicates that the phase transition in Fe0.5Co0.5Si is of a weak first-order type in low field region, while it is driven into a second-order one under high field. This weak first-order phase transition in low field region resembles that in typical skyrmion system MnSi which is caused by the critical fluctuation. The result suggests that critical fluctuation plays an important role in the phase transition and formation of skyrmion state. (C) 2017 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordMagnetic Entropy Change Scaling First-order Phase Transition Universal Curve
WOS HeadingsScience & Technology ; Technology
Funding OrganizationMinistry of Science and Technology of China(2017YFA0303200) ; Ministry of Science and Technology of China(2017YFA0303200) ; National Natural Science Foundation of China(11574322 ; National Natural Science Foundation of China(11574322 ; U1332140 ; U1332140 ; 11474290 ; 11474290 ; 11574288) ; 11574288) ; Ministry of Science and Technology of China(2017YFA0303200) ; Ministry of Science and Technology of China(2017YFA0303200) ; National Natural Science Foundation of China(11574322 ; National Natural Science Foundation of China(11574322 ; U1332140 ; U1332140 ; 11474290 ; 11474290 ; 11574288) ; 11574288)
DOI10.1016/j.materresbull.2017.06.035
WOS KeywordMNSI ; FERROMAGNETS
Indexed BySCI
Language英语
Funding OrganizationMinistry of Science and Technology of China(2017YFA0303200) ; Ministry of Science and Technology of China(2017YFA0303200) ; National Natural Science Foundation of China(11574322 ; National Natural Science Foundation of China(11574322 ; U1332140 ; U1332140 ; 11474290 ; 11474290 ; 11574288) ; 11574288) ; Ministry of Science and Technology of China(2017YFA0303200) ; Ministry of Science and Technology of China(2017YFA0303200) ; National Natural Science Foundation of China(11574322 ; National Natural Science Foundation of China(11574322 ; U1332140 ; U1332140 ; 11474290 ; 11474290 ; 11574288) ; 11574288)
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000409151200067
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33644
Collection中科院强磁场科学中心
Affiliation1.Chinese Acad Sci, High Field Magnet Lab, Anhui Key Lab Condensed Matter Phys Extreme Condi, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.Tech Univ Carolo Wilhelmina Braunschweig, Inst Phys Kondensiertem Mat, D-38106 Braunschweig, Germany
4.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Han, Hui,Menzel, Dirk,Liu, Wei,et al. Scaling of the magnetic entropy change in skyrmion material Fe0.5Co0.5Si[J]. MATERIALS RESEARCH BULLETIN,2017,94:500-505.
APA Han, Hui.,Menzel, Dirk.,Liu, Wei.,Ling, Langsheng.,Du, Haifeng.,...&Zhang, Yuheng.(2017).Scaling of the magnetic entropy change in skyrmion material Fe0.5Co0.5Si.MATERIALS RESEARCH BULLETIN,94,500-505.
MLA Han, Hui,et al."Scaling of the magnetic entropy change in skyrmion material Fe0.5Co0.5Si".MATERIALS RESEARCH BULLETIN 94(2017):500-505.
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