منابع مشابه
Primary structural dynamics in graphite
The structural dynamics of graphite and graphene are unique, because of the selective coupling between electron and lattice motions and hence the limit on electric and electro-optic properties. Here, we report on the femtosecond probing of graphite films (1–3 nm) using ultrafast electron crystallography in the transmission mode. Two time scales are observed for the dynamics: a 700 fs initial de...
متن کاملStructural Preablation Dynamics of Graphite Observed by Ultrafast Electron Crystallography
Fabrizio Carbone, Peter Baum, Petra Rudolf, and Ahmed H. Zewail Physical Biology Center for Ultrafast Science & Technology, Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena California, 91125, USA Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands (Received 15 October 2007; published ...
متن کاملElectron dynamics in MoS2-graphite heterostructures.
The electron dynamics in heterostructures formed by multilayer graphite and monolayer or bulk MoS2 were studied by femtosecond transient absorption measurements. Samples of monolayer MoS2-multilayer graphite and bulk MoS2-multilayer graphite were fabricated by exfoliation and dry transfer techniques. Ultrafast laser pulses were used to inject electron-hole pairs into monolayer or bulk MoS2. The...
متن کاملHydrogen Dynamics in Magnesium and Graphite
Magnesium, nanotubes, graphitic nanofibers, and graphite represent interesting opportunities for efficient hydrogen storage applications and motivate first-principle investigations of the hydrogen energetics and dynamics that describe such potential technological usage. We present spin-polarized electron-density calculations of adsorption energies and diffusion barriers for both chemisorbed and...
متن کاملStructural transformation of graphite by arc-discharge
The formation of novel structures by the passage of an electric current through graphite is described. These structures apparently consist of hollow three-dimensional graphitic shells bounded by curved and faceted planes, typically made up of two graphene layers. The curved structures were frequently decorated with nano-scale carbon particles, or short nanotubes. In some cases, nanotubes were f...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2011
ISSN: 1367-2630
DOI: 10.1088/1367-2630/13/6/063030