New two-dimensional Mn-based MXenes with room-temperature ferromagnetism and half-metallicity

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10332094" target="_blank" >RIV/00216208:11310/16:10332094 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/c6tc03917k" target="_blank" >http://dx.doi.org/10.1039/c6tc03917k</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c6tc03917k" target="_blank" >10.1039/c6tc03917k</a>

Result language
angličtina
Original language name
New two-dimensional Mn-based MXenes with room-temperature ferromagnetism and half-metallicity
Original language description
Magnetic properties of Mn2CT2 (T = F, Cl, OH, O, and H) MXenes are reported based on a computational investigation. While other two dimensional Mn2CT2 MXenes become non-magnetic upon symmetrical functionalization of their surfaces, the Mn2C MXene functionalized with a functional group bearing formal charge -1 (F, Cl, and OH) retains the ferromagnetic ground state upon functionalization. Based on density functional theory calculations and Monte Carlo simulations the Mn2CF2 MXene is predicted to be an intrinsic half-metal with high Curie temperature (520 K), wide half-metallic gap (0.9 eV) and a sizable magnetic anisotropy (24 mu eV). These magnetic properties make the Mn2CF2 MXene an optimal material for applications in spintronics. Different surface functional groups lead to either quantitative (Cl and OH) or qualitative (O and H) changes in Mn2CT2 magnetic properties. It is proposed that Mn2CT2 MXenes can be prepared experimentally from the already existing parent Mn2GaC MAX phase by exfoliation techniques.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/GBP106%2F12%2FG015" target="_blank" >GBP106/12/G015: Intelligent design of nanoporous adsorbents and catalysts</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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