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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Bloch's conjecture for symplectic autoequivalences on K3 surfaces
布洛赫 K3曲面 辛自等价
2023/4/13
Bloch's conjecture for a surface X over an algebraically closed field k states that every homologically trivial correspondence acts as 0 on the Albanese kernel. When X is a K3 surface, this conjecture...
Chemical Raman Enhancement of Organic Adsorbates on Metal Surfaces
Chemical Raman Enhancement Organic Adsorbates Metal Surfaces
2010/11/19
Using a combination of rst-principles theory and experiments, we provide a quantitative explanation for chemical contributions to surface-enhanced Raman spectroscopy for a well-studied organic molecu...
The effect of self-affine roughness on solid contact is examined with molecular dynamics and
continuum calculations. The contact area and normal and lateral stiffnesses rise linearly with the applied...
Contour lines of the discrete scale invariant rough surfaces
Contour lines discrete scale invariant rough surfaces
2010/11/18
We study the fractal properties of the 2d discrete scale invariant (DSI) rough surfaces.
The contour lines of these rough surfaces show clear DSI. In the appropriate limit the
DSI surfaces converge ...
Comparison of Graphene Formation on C-face and Si-face SiC {0001} Surfaces
Comparison of Graphene Formation Si-face SiC {0001} Surfaces
2010/11/19
The morphology of graphene formed on the ( 0001 ) surface (the C-face) and the (0001) surface
(the Si-face) of SiC, by annealing in ultra-high vacuum or in an argon environment, is studied by atomic ...
Quasi-Two-Dimensional Fermi Surfaces and Coherent Interlayer Transport in KFe$_2$As$_2$
Quasi-Two-Dimensional Fermi Surfaces Coherent Interlayer Transport
2010/11/19
We report the results of the angular-dependent magnetoresistance oscillations (AMROs), which
can determine the shape of bulk Fermi surfaces in quasi-two-dimensional (Q2D) systems, in a highly hole-do...
Localized in-situ polymerization on graphene surfaces for stabilized graphene dispersions
Localized in-situ polymerization graphene surfaces stabilized graphene dispersions
2010/11/18
We demonstrate a novel in situ polymerization technique to develop localized polymer coatings on the surface of dispersed pristine graphene sheets. Graphene sheets show great promise as strong, conduc...
Electronic Structure of Surfaces in GeSe Layered Semiconductor
Green´ s function methods Defects Single crystal surfaces Surface defects
2010/4/9
Green´s function method in bases sets of Linear Combinations of Atomic Orbitals (LCAO) is used to calculate the electronic structure of the (010) surface of GeSe semiconductor. The energy states...
Alloying of AISI 1008 Steel Surfaces by 10ms Nd: YAG Laser Pulses
AISI 1008 Steel Surfaces 10ms Nd laser surface alloying
2010/4/19
Hardened surfaces were produced on AISI 1008 steel through a laser surface alloying (LSA) technique. Mixture of pure Boron, Silicon, and Carbon powders of the same grain size were deposited on the sub...