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Exact solutions and elementary excitations in the XXZ spin chain with unparallel boundary fields
By using a set of gauge transformations, the exact solutions of the XXZ spin chain with unparallel boundary magnetic fields are derived in the framework of the algebraic Bethe ansatz. In the
Entanglement and quantum phase transition in the extended Hubbard model.
The results show, for the first time, that entanglement can be used to identify quantum phase transitions in fermionic systems.
Growth of gold bipyramids with improved yield and their curvature-directed oxidation.
It is demonstrated that the oxidation rate can be controlled by varying the amounts of hydrogen peroxide and hydrochloric acid and this oxidation approach can be used in conjunction with the seed-mediated growth in CTBAB solutions to produce Au bipyramids, the LSP wavelengths of which are finely tunable from 650 to 1300 nm.
Metals on Graphene: Interactions, Growth Morphology, and Thermal Stability
Graphene, a single atomic layer of graphite, has been a material of recent intensive studies due to its novel electronic and structural properties and its potential applications in the emerging area
Angle- and energy-resolved plasmon coupling in gold nanorod dimers.
An anti-crossing-like behavior in the plasmon coupling energy diagram has been revealed for linearly end-to-end assembled dimers composed of differently sized nanorods, useful for plasMonic applications where the plAsmon wavelength is required to be controllable but without sacrificing the electric field enhancement.
Universal scaling and Fano resonance in the plasmon coupling between gold nanorods.
A theoretical model based on two interacting mechanical oscillators has been developed and allows for the determination of the coupled plasmon energies of Au nanorod dimers with high accuracies, and the Fano interference has been observed in the Nanorod heterodimers.
Stabilization of fullerene-like boron cages by transition metal encapsulation.
It is demonstrated that the transition demarcation, n, can be significantly reduced with the help of transition metal encapsulation, offering a useful roadmap for the discovery of more B fullerene analogues as building blocks of nanomaterials.
Mercury under Pressure acts as a Transition Metal: Calculated from First Principles.
Using an advanced structure search algorithm and first-principles electronic structure calculations, it is found that under high pressure Hg in Hg-F compounds transfers charge from the d-orbitals to the F, thus behaving as a transition metal.