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Near-room temperatu...
Near-room temperature ferromagnetic behavior of single-atom-thick 2D iron in nanolaminated ternary MAX phases
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- Li, Youbing (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Liang, Jinghua (författare)
- Chinese Acad Sci, Peoples R China; Univ Chinese Acad Sci, Peoples R China
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- Ding, Haoming (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Lu, Jun (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Mu, Xulin (författare)
- Beijing Univ Technol, Peoples R China
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- Yan, Pengfei (författare)
- Beijing Univ Technol, Peoples R China
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- Zhang, Xiao (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Chen, Ke (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Li, Mian (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Persson, Per O. A. (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Hultman, Lars (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Eklund, Per (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Du, Shiyu (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Yang, Hongxin (författare)
- Chinese Acad Sci, Peoples R China; Univ Chinese Acad Sci, Peoples R China
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- Chai, Zhifang (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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- Huang, Qing (författare)
- Chinese Acad Sci, Peoples R China; Qianwan Inst CNiTECH, Peoples R China
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(creator_code:org_t)
- AIP Publishing, 2021
- 2021
- Engelska.
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Ingår i: Applied Physics Reviews. - : AIP Publishing. - 1931-9401. ; 8:3
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- M(n+)(1)AX(n) (MAX) phases nanolaminated ternary carbides or nitrides possess a unique crystal structure in which single-atom-thick "A" sublayers are interleaved by alternative stacking of a "Mn+1Xn" sublayer; these materials have been investigated as promising high-safety structural materials for industrial applications because of their laminated structure and metal and ceramic properties. However, limited of A-site elements in the definition of M(n+)(1)AX(n) phases, it is a huge challenge for designing nanolaminated ferromagnetic materials with single-atom-thick two-dimensional iron layers occupying the A layers in the M(n+)(1)AX(n) phases. Here, we report three new ternary magnetic M(n+)(1)AX(n) phases (Ta2FeC, Ti2FeN, and Nb2FeC) with A sublayers of single-atom-thick two-dimensional iron through an isomorphous replacement reaction of M(n+)(1)AX(n) precursors (Ta2AlC, Ti2AlN, and Nb2AlC) with a Lewis acid salts (FeCl2). All these M(n+)(1)AX(n) phases exhibit ferromagnetic behavior. The Curie temperatures of the Ta2FeC and Nb2FeC M(n+)(1)AX(n) phases are 281 and 291K, respectively, i.e., close to room temperature. The saturation magnetization of these ternary magnetic MAX phases is almost two orders of magnitude higher than V-2(Sn,Fe)C, whose A-site is partially substituted by Fe. Theoretical calculations on magnetic orderings of spin moments of Fe atoms in these nanolaminated magnetic M(n+)(1)AX(n) phases reveal that the magnetism can be mainly ascribed to an intralayer exchange interaction of the two-dimensional Fe atomic layers. Owing to the richness in composition of M(n+)(1)AX(n) phases, our work provides a large imaginary space for constructing functional single-atom-thick two-dimensional layers in materials using these nanolaminated templates.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Li, Youbing
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Liang, Jinghua
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Ding, Haoming
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Lu, Jun
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Mu, Xulin
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Yan, Pengfei
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Zhang, Xiao
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Chen, Ke
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Li, Mian
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Persson, Per O. ...
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Hultman, Lars
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Eklund, Per
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Du, Shiyu
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Yang, Hongxin
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Chai, Zhifang
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Huang, Qing
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Linköpings universitet