Results 41 to 50 of about 1,580,536 (335)

Diamond aggregation [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 2010
AbstractInternal diffusion-limited aggregation is a growth model based on random walk in ℤd. We study how the shape of the aggregate depends on the law of the underlying walk, focusing on a family of walks in ℤ2 for which the limiting shape is a diamond.
Kager, W., Levine, L.
openaire   +3 more sources

Quadrupolar magnetic excitations in an isotropic spin-1 antiferromagnet

open access: yesNature Communications, 2022
Multipolar magnetic excitations are challenging to measure as most experimental probes are sensitive to dipolar processes. Here, Nag et al. show the existence of dispersing quadrupolar components to the spin excitations in an antiferromagnet ...
A. Nag   +7 more
doaj   +1 more source

Chemically induced transformation of chemical vapour deposition grown bilayer graphene into fluorinated single-layer diamond [PDF]

open access: yesNature Nanotechnology, 2019
Notwithstanding the numerous density functional studies on the chemically induced transformation of multilayer graphene into a diamond-like film carried out to date, a comprehensive convincing experimental proof of such a conversion is still lacking.
P. Bakharev   +14 more
semanticscholar   +1 more source

Low Resistance Polycrystalline Diamond Thin Films Deposited by Hot Filament Chemical Vapour Deposition [PDF]

open access: yes, 2014
Polycrystalline diamond thin films with outgrowing diamond (OGD) grains were deposited onto silicon wafers using a hydrocarbon gas (CH4) highly diluted with H2 at low pressure in a hot filament chemical vapour deposition (HFCVD) reactor with a range of ...
Abdelbary Elhissi   +27 more
core   +1 more source

Archaean and Proterozoic diamond growth from contrasting styles of large-scale magmatism [PDF]

open access: yes, 2017
Precise dating of diamond growth is required to understand the interior workings of the early Earth and the deep carbon cycle. Here we report Sm-Nd isotope data from 26 individual garnet inclusions from 26 harzburgitic diamonds from Venetia, South Africa.
Chinn, Ingrid L.   +5 more
core   +3 more sources

An integrated diamond nanophotonics platform for quantum-optical networks [PDF]

open access: yesScience, 2016
Integrated quantum nanophotonics Technologies that exploit the rules of quantum mechanics offer a potential advantage over classical devices in terms of sensitivity. Sipahigil et al.
A. Sipahigil   +15 more
semanticscholar   +1 more source

Introduction to quantum optimal control for quantum sensing with nitrogen-vacancy centers in diamond [PDF]

open access: yes, 2020
Diamond based quantum technology is a fast emerging field with both scientific and technological importance. With the growing knowledge and experience concerning diamond based quantum systems, comes an increased demand for performance.
P. Rembold   +5 more
semanticscholar   +1 more source

Perfect preferential orientation of nitrogen-vacancy defects in a synthetic diamond sample [PDF]

open access: yes, 2014
We show that the orientation of nitrogen-vacancy (NV) defects in diamond can be efficiently controlled through chemical vapor deposition (CVD) growth on a (111)-oriented diamond substrate.
Achard, J.   +7 more
core   +4 more sources

Population-based HIV prevalence, stigma and HIV risk among trans women in Nepal

open access: yesBMC Infectious Diseases, 2021
Background Transgender women (trans women) in Nepal are underserved in the HIV response. Data are needed to determine the HIV prevalence disaggregated from other key populations and to identify the particular risks faced by this community.
Erin C. Wilson   +10 more
doaj   +1 more source

Deforming diamond

open access: yesIMA Journal of Applied Mathematics, 2016
For materials science, diamond crystals are almost unrivaled for hardness and a range of other properties. Yet, when simply abstracting the carbon bonding structure as a geometric bar-and-joint periodic framework, it is far from rigid. We study the geometric deformations of this type of framework in arbitrary dimension d, with particular regard to the ...
Borcea, Ciprian, Streinu, Ileana
openaire   +2 more sources

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