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Intercalation reactions modify the charge density in van der Waals (vdW) materials through coupled electronic-ionic charge accumulation, and are susceptible to modulation by interlayer hybridization in vdW heterostructures. Here, we…

Intercalation has proven to be a powerful tool for tailoring the electronic properties of freestanding graphene layers as well as for stabilizing the intercalated material in a two-dimensional configuration. This work examines Si…

Alkali intercalated graphite compounds represent a compelling modification of carbon with significant application potential and various fundamentally important phases. We report on the intercalation of graphite with alkali atoms (Li and K)…

强关联电子 · 物理学 2019-12-19 B. G. Márkus , S. Kollarics , P. Szirmai , B. Náfrádi , L. Forró , J. C. Chacón-Torres , T. Pichler , F. Simon

Using the normal incidence x-ray standing wave technique as well as low energy electron microscopy we have investigated the structure of quasi-freestanding monolayer graphene (QFMLG) obtained by intercalation of antimony under the…

The process of anion intercalation in graphite and its reversibility plays a crucial role in the next generation energy-storage devices. Herein the reaction mechanism of the aluminum graphite dual ion cell by operando X-ray scattering from…

Electronic decoupling of graphene from metallic and semiconducting substrates via intercalation of different species is one of the widely used approaches in studies of graphene. In the present work the modification of the electronic and…

材料科学 · 物理学 2021-12-24 Yong Zhou , Roman Ovcharenko , Beate Paulus , Yuriy Dedkov , Elena Voloshina

Angle-resolved photoemission spectroscopy and Auger electron spectroscopy have been applied to study the intercalation process of silver underneath a monolayer of graphite (MG) on Ni(111). The room-temperature deposition of silver on top of…

材料科学 · 物理学 2007-05-23 Yu. S. Dedkov , M. Poygin , D. Vyalikh , A. Starodubov , A. M. Shikin , V. K. Adamchuk

Using low-energy electron microscopy, we study Co intercalation under graphene grown on Ir(111). Depending on the rotational domain of graphene on which it is deposited, Co is found intercalated at different locations. While intercalated Co…

材料科学 · 物理学 2014-03-14 S. Vlaic , A. Kimouche , J. Coraux , B. Santos , A. Locatelli , N. Rougemaille

The lubricating ability of graphite largely depends on the environmental humidity, essentially the amount of water in between its layers. In general, intercalated molecules in layered materials modify their extraordinary properties by…

材料科学 · 物理学 2019-01-09 A. Qadir , Y. W. Sun , W. Liu , P. Goldberg Oppenheimer , Y. Xu , C. J. Humphreys , D. J. Dunstan

Intercalation of rare earth metals ($RE$ = Eu, Dy, and Gd) is achieved by depositing the $RE$ metal on graphene that is grown on silicon-carbide (SiC) and by subsequent annealing at high temperatures to promote intercalation. STM images of…

介观与纳米尺度物理 · 物理学 2018-11-16 Nathaniel A. Anderson , Myron Hupalo , David Keavney , Michael Tringides , David Vaknin

Gold intercalation between the buffer layer and a graphene monolayer of epitaxial graphene on SiC(0001) leads to the formation of quasi free standing small aggregates of clusters. Angle Resolved Photoemission Spectroscopy measurements…

材料科学 · 物理学 2015-06-03 M. N. Nair , M. Cranney , F. Vonau , D. Aubel , P. Le Fèvre , A. Tejeda , F. Bertran , A. Taleb-Ibrahimi , L. Simon

On the SiC(0001) surface (the silicon face of SiC), epitaxial graphene is obtained by sublimation of Si from the substrate. The graphene film is separated from the bulk by a carbon-rich interface layer (hereafter called the buffer layer)…

Recent intensive research on two-dimensional materials (2DMs) rekindle the interest in the intercalation of various atoms and molecules into layered compounds as a tool to manufacture 2DMs and tune their optoelectronic, magnetic and…

介观与纳米尺度物理 · 物理学 2025-07-10 Arkady V. Krasheninnikov , Yung-Chang Lin , Kazu Suenaga

Metal nanostructures confined between sp2 hybridized 2D materials and solid supports are attracting attention for their potential application in new nanotechnologies. Model studies under well-defined conditions are valuable for…

We present a study of quasi-free-standing monolayer graphene obtained by intercalation of Au atoms at the interface between the carbon buffer layer (Bu-L) and the silicon-terminated face (0001) of 4H-silicon carbide. Au intercalation is…

Graphite is the most widely used anode material in lithium-ion batteries with over 98% market share. However, despite its first application over 30 years ago, the lithium insertion processes and associated dynamics in graphite remain poorly…

Theoretical studies of penetration of various alkali atoms (Li, Na, Rb, Cs) throughout graphene membrane grown on silicon carbide substrate are reported and compared with recent experimental results. Results of first principles modeling…

材料科学 · 物理学 2012-05-04 D. W. Boukhvalov , C. Virojanadara

Understanding the nature of the interaction at the graphene/metal interfaces is the basis for graphene-based electron- and spin-transport devices. Here we investigate the hybridization between graphene- and metal-derived electronic states…

材料科学 · 物理学 2014-07-17 H. Vita , S. Boettcher , K. Horn , E. N. Voloshina , R. E. Ovcharenko , Th. Kampen , A. Thissen , Yu. S. Dedkov

The occurrence of non-adiabatic effects in the vibrational properties of metals have been predicted since the 60's, but hardly confirmed experimentally. We report the first fully \emph{ab initio} calculations of non-adiabatic frequencies of…

材料科学 · 物理学 2009-11-13 A. Marco Saitta , Michele Lazzeri , Matteo Calandra , Francesco Mauri

We have investigated the electronic structure of graphene supported on Re(0001) before and after the intercalation of one monolayer of Ag by means of angle-resolved photoemission spectroscopy measurements and density functional theory…