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- W2896561774 abstract "Electron-phonon(e-ph) interaction in Ca2N monolayer, the first electrene material with two-dimensional(2D) electron gas floating in free space, is expected to be very weak and such a character can be used to design weak-scattering transport channels. Therefore, it is highly desirable to quantitatively evaluate the carrier mobility of electrene. In this study, e-ph interaction in Ca2N monolayer is investigated using a precise Wannier interpolation-based first principles technique. The calculated e-ph coupling matrix elements of Ca2N monolayer are indeed small compared to other 2D materials such as graphene, which leads to an intrinsic mobility of 189 cm2V-1s-1, much higher than those of conventional metals. Other factors affecting mobility are discussed in a comparison with graphene. It is predicted that, based on a momentum mismatch mechanism, mobility of Ca2N monolayer can be increased further to above 3000 cm2V-1s-1 via hole doping. Our results confirm that Ca2N electrene is a promising electronic material." @default.
- W2896561774 created "2018-10-26" @default.
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- W2896561774 date "2018-10-31" @default.
- W2896561774 modified "2023-10-08" @default.
- W2896561774 title "Electron-phonon interaction in a <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>Ca</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi mathvariant=normal>N</mml:mi></mml:mrow></mml:math> monolayer: Intrinsic mobility of electrene" @default.
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- W2896561774 doi "https://doi.org/10.1103/physrevb.98.155443" @default.
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