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相关论文: Spectroscopic and DFT studies of graphene intercal…

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Realization of a free-standing graphene is always a demanding task. Here we use scanning probe microscopy and spectroscopy to study the crystallographic structure and electronic properties of the uniform free-standing graphene layers…

材料科学 · 物理学 2016-02-09 Elena Voloshina , Nikolai Berdunov , Yuriy Dedkov

We study the formation of epitaxial graphene on Ru(0001) using fast x-ray photoelectron spectroscopy during the growth process. The assignment of different C 1s and Ru 3d core level components and their evolution during the growth process…

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 effect of Mn intercalation on the atomic, electronic and magnetic structure of the graphene/Cu(111) interface is studied using state-of-the-art density functional theory calculations. Different structural models of the…

材料科学 · 物理学 2021-12-23 Qilin Guo , Yuriy Dedkov , Elena Voloshina

Decoupling of the graphene layer from the ferromagnetic substrate via intercalation of sp metal has recently been proposed as an effective way to realize single-layer graphene-based spin-filter. Here, the structural and electronic…

材料科学 · 物理学 2011-12-30 E. N. Voloshina , A. Generalov , M. Weser , S. Boettcher , K. Horn , Yu. S. Dedkov

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

Near-ambient pressure XPS and STM experiments are performed to study the intercalation of oxygen and nitrogen at different partial gas pressures and different temperatures in the graphene/Ni/Ir(111) system of different morphologies. We…

材料科学 · 物理学 2019-08-12 Changbao Zhao , Jiayi Li , Jiuxiang Dai , Elena Voloshina , Yuriy Dedkov , Yi Cui

The influence of graphene on the assembly of intercalated material is studied using low-temperature scanning tunneling microscopy. Intercalation of Pt under monolayer graphene on Pt(111) induces a substrate reconstruction that is…

介观与纳米尺度物理 · 物理学 2019-02-28 Johannes Halle , Nicolas Néel , Jörg Kröger

Graphene, a two-dimensional (2D) material with unique electronic properties, appears to be an ideal object for the application of surface-science methods. Among them, a family of scanning probe microscopy methods (STM, AFM, KPFM) and the…

材料科学 · 物理学 2015-03-30 Yuriy Dedkov , Elena Voloshina , Mikhail Fonin

The intercalation of different species in graphene-metal interfaces is widely used to stabilise the artificial phases of different materials. However, formation of the surface alloys upon the guest-metal intercalation is still an open…

材料科学 · 物理学 2021-12-28 Elena Voloshina , Beate Paulus , Yuriy Dedkov

The electronic structure of graphene on Cu(111) and Cu(100) single crystals is investigated using low energy electron microscopy, low energy electron diffraction and angle resolved photoemission spectroscopy. On both substrates the graphene…

The electronic structure and magnetic properties of the graphene/Fe/Ni(111) system were investigated via combination of the density functional theory calculations and electron-spectroscopy methods. This system was prepared via intercalation…

材料科学 · 物理学 2017-09-13 M. Weser , E. N. Voloshina , K. Horn , Yu. S. Dedkov

We have performed electron energy-loss spectroscopy (EELS) studies of Ni(111), graphene/Ni(111), and the graphene/Au/Ni(111) intercalation-like system at different primary electron energies. A reduced parabolic dispersion of the \pi plasmon…

材料科学 · 物理学 2011-09-13 A. V. Generalov , Yu. S. Dedkov

Intercalation of atomic species through epitaxial graphene layers began only a few years following its initial report in 2004. The impact of intercalation on the electronic properties of the graphene is well known; however, the intercalant…

Graphene is a fascinating 2D material that is being widely investigated for use in electronic devices due to its unique electronic and materials properties. Also, because of its high thermal stability and inertness, it is considered a…

介观与纳米尺度物理 · 物理学 2017-10-25 Tianbai Li , Jory A. Yarmoff

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…

We report the structural and electronic properties of an artificial graphene/Ni(111) system obtained by the intercalation of a monoatomic layer of Ni in graphene/Ir(111). Upon intercalation, Ni grows epitaxially on Ir(111), resulting in a…

As the synthesis of graphene on copper became one of the primary preparation methods for both fundamental research and industrial application, Raman spectra of graphene/Cu systems need to be quantitatively understood regarding how their…

材料科学 · 物理学 2020-08-07 Jieun Choi , Seonghyun Koo , Myeongin Song , Daeyool Jung , Sungyool Choi , Sunmin Ryu

Graphene is one of the most promising 2D materials for various applications due to its unique electronic properties and high thermal stability. In previous studies, it was shown that when graphene is deposited onto some transition metal…

材料科学 · 物理学 2018-02-13 Tianbai Li , Jory A. Yarmoff

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
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