Results 51 to 60 of about 47,062 (224)
This study presents a comprehensive first-principles investigation of the structural, electronic, and catalytic properties of a class of boron-rich clusters, M–C2B9H11 (M = Fe, Co, Ni, Cu), derived from crystalline B12 and C2B10 frameworks.
Nasim Hassani, Farbod Sadeghi
doaj +1 more source
Properties and benefits of fluorine in silicon and silicon-germanium devices
This paper reviews the behaviour of fluorine in silicon and silicon-germanium devices. Fluorine is shown to have many beneficial effects in polysilicon emitter bipolar transistors, including higher values of gain, lower emitter resistance, lower 1/f ...
Peter Ashbur, Huda A. W. El Mubarek
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Magnetic states and optical properties of single-layer carbon-doped hexagonal boron nitride
We show that carbon-doped hexagonal boron nitride (h-BN) has extraordinary properties with many possible applications. We demonstrate that the substitution-induced impurity states, associated with carbon atoms, and their interactions dictate the ...
Neto, Antonio H. Castro +3 more
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In this paper we report a theoretical study of the static dipole polarizability of two one-dimensional structures: (a) linear carbon chains C$_{n} (n=2-10)$ and (b) ladder-like planar boron chains B$_{n} (n=4-14)$.
Abdurahman, Ayjamal +2 more
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Strain energy calculations of hexagonal boron nanotubes: An ab-initio approach [PDF]
An ab initio calculations have been carried out for examining the curvature effect of small diameter hexagonal boron nanotubes. The considered conformations of boron nanotubes are namely armchair (3,3), zigzag (5,0) and chiral (4,2), and consist of 12 ...
Jain, S. K., Srivastava, P.
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Ab Initio Prediction of Boron Compounds Arising from Borozene: Structural and Electronic Properties
Structure and electronic properties of two unusual boron clusters obtained by fusion of borozene rings have been studied by means of first principles calculations based on the generalized-gradient approximation of the density functional theory. Moreover,
La Magna A, Deretzis I, Pucci R, Forte G
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Gold(III) Complexation in the Presence of the Macropolyhedral Hydridoborate Cluster [B20H18]2−
Gold(III) complexation with the octadecahydrido-eicosaborate anion [B20H18]2− was studied for the first time. It was found that when gold(III) complexes [Au(L)Cl2]BF4 (L = bipy, phen) reacted with [B20H18]2−, complexes [Au(L)Cl2]2[B20H18] were isolated ...
Varvara V. Avdeeva +6 more
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Measurement of boron and carbon fluxes in cosmic rays with the PAMELA experiment [PDF]
The propagation of cosmic rays inside our galaxy plays a fundamental role in shaping their injection spectra into those observed at Earth. One of the best tools to investigate this issue is the ratio of fluxes for secondary and primary species. The boron-
Adriani, O. +63 more
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Computational study of boron nitride nanotube synthesis: how catalyst morphology stabilizes the boron nitride bond [PDF]
In an attempt to understand why catalytic methods for the growth of boron nitride nanotubes work much worse than for their carbon counterparts, we use first-principles calculations to study the energetics of elemental reactions forming N2, B2 and BN ...
A. S. Foster +4 more
core +3 more sources
Planar Elongated B12 Structure in M3B12 Clusters (M = Cu-Au)
Here, it is shown that the M3B12 (M = Cu-Au) clusters’ global minima consist of an elongated planar B12 fragment connected by an in-plane linear M3 fragment.
José Solar-Encinas +7 more
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