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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
发表期刊MATERIALS RESEARCH BULLETIN
卷号94页码:500-505
摘要The 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.
文章类型Article
关键词Magnetic Entropy Change Scaling First-order Phase Transition Universal Curve
WOS标题词Science & Technology ; Technology
资助者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) ; 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
关键词[WOS]MNSI ; FERROMAGNETS
收录类别SCI
语种英语
资助者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) ; 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研究方向Materials Science
WOS类目Materials Science, Multidisciplinary
WOS记录号WOS:000409151200067
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33644
专题中科院强磁场科学中心
作者单位1.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
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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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