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Multielemental single atom-thick A layers in nanolaminated V2(Sn, A) C (A = Fe, Co, Ni, Mn) for tailoring magnetic properties
Chinese Acad Sci, Peoples R China; Univ Chinese Acad Sci, Peoples R China.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Tunnfilmsfysik. Linköpings universitet, Tekniska fakulteten.
Chinese Acad Sci, Peoples R China.
Chinese Acad Sci, Peoples R China.
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2020 (Engelska)Ingår i: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 117, nr 2, s. 820-825Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Tailoring of individual single-atom-thick layers in nanolaminated materials offers atomic-level control over material properties. Nonetheless, multielement alloying in individual atomic layers in nanolaminates is largely unexplored. Here, we report 15 inherently nanolaminated V-2(A(x)Sn(1-x))C (A = Fe, Co, Ni, Mn, and combinations thereof, with x similar to 1/3) MAX phases synthesized by an alloy-guided reaction. The simultaneous occupancy of the 4 magnetic elements and Sn in the individual single-atom-thick A layers constitutes high-entropy MAX phase in which multielemental alloying exclusively occurs in the 2 -dimensional (2D) A layers. V-2(A(x)Sn(1-x))C exhibit distinct ferromagnetic behavior that can be compositionally tailored from the multielement A-layer alloying. Density functional theory and phase diagram calculations are performed to understand the structure stability of these MAX phases. This 2D multielemental alloying approach provides a structural design route to discover nanolaminated materials and expand their chemical and physical properties. In fact, the magnetic behavior of these multielemental MAX phases shows strong dependency on the combination of various elements.

Ort, förlag, år, upplaga, sidor
NATL ACAD SCIENCES , 2020. Vol. 117, nr 2, s. 820-825
Nyckelord [en]
MAX phases; high-entropy ceramics; multielement alloys; magnetism
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Den kondenserade materiens fysik
Identifikatorer
URN: urn:nbn:se:liu:diva-163448DOI: 10.1073/pnas.1916256117ISI: 000508976200011PubMedID: 31879341OAI: oai:DiVA.org:liu-163448DiVA, id: diva2:1393726
Anmärkning

Funding Agencies|National Natural Science Foundation of ChinaNational Natural Science Foundation of China [21671195, 21805295, 21875271]; Chinese Academy of SciencesChinese Academy of Sciences [2019VEB0008, 174433KYSB20190019]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [SFO-Mat-LiU 2009 00971]; Knut and Alice Wallenberg FoundationKnut & Alice Wallenberg Foundation [KAW 2015.0043]; Swedish Foundation for Strategic ResearchSwedish Foundation for Strategic Research [EM16-0004, RIF 14-0074]

Tillgänglig från: 2020-02-17 Skapad: 2020-02-17 Senast uppdaterad: 2020-04-24

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Publikationen är tillgänglig i fulltext från 2020-06-26 08:13
Tillgänglig från 2020-06-26 08:13

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Lu, JunPersson, Per O AHultman, LarsEklund, Per
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