搜索结果: 1-15 共查到“理学 diamond”相关记录45条 . 查询时间(0.174 秒)
Many of the biological materials that researchers are most interested in studying, including those associated with major diseases, don’t lend themselves to the conventional methods that researchers ty...
Micron-scale d13C determination by NanoSIMS in a Juina diamond with a carbonate inclusion
sub-lithospheric diamonds Juina carbonate lower mantle peridotite eclogite
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2017/4/10
Juina diamonds present a wide spectrum of mineral inclusions, covering both peridotitic and eclogitic composition.
Among the most rare inclusions, carbonates are interpreted as an evidence of deep re...
The purpose of this article is to prove the relative consistency of certain statements about open colorings with 2ℵ0 < 2ℵ1. In particular both OCA and the statement that every 1-1 function...
DIAMOND AGGREGATION
DIAMOND AGGREGATION
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2015/8/14
Internal 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...
Depth profiling analysis of solar wind helium collected in diamond-like carbon film from Genesis
solar wind depth profile helium NASA Genesis mission post-ionization
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2017/4/10
The distribution of solar-wind ions in Genesis mission collectors, as determined by depth profiling analysis, constrains
the physics of ion-solid interactions involving the solar wind. Thus, they pro...
Non-orthogonal version of the arbitrary polygonal C-grid and a new diamond grid
Non-orthogonal version arbitrary polygonal C-grid
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2014/12/18
Quasi-uniform grids of the sphere have become
popular recently since they avoid parallel scaling bottlenecks associated with the poles of latitude–longitude grids.
Gyroscopes based on nitrogen-vacancy centers in diamond
Gyroscopes nitrogen-vacancy centers diamond Atomic Physics
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2012/5/17
We propose solid-state gyroscopes based on ensembles of negatively charged nitrogen-vacancy centers in diamond. In one scheme, rotation of the nitrogen-vacancy symmetry axis will induce Berry's phase ...
Diamond particles as nanoantennas for nitrogen-vacancy color centers
Diamond particles nanoantennas nitrogen-vacancy color centers Quantum Physics
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2011/8/2
Abstract: The photoluminescence of nitrogen-vacancy (NV) centers in diamond nanoparticles exhibits specific properties as compared to NV centers in bulk diamond. For instance large fluctuations of lif...
Coupling of a Single Diamond Nanocrystal to a Whispering-Gallery Microcavity: Photon Transportation Benefitting from Rayleigh Scattering
Whispering-Gallery Photon Transportation Benefitting Rayleigh Scattering
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2011/9/13
We study the Rayleigh scattering induced by a diamond nanocrystal in a whispering-gallery-microcavity–waveguide coupling system, and find that it plays a significant role in the photon transportation....
Diamond prospectivity of Mesoproterozoic lamproites from the Krishna valley, eastern Dharwar craton, southern India: Insights from whole-rock geochemistry
diamond lamproite Krishna valley Dharwar craton
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2017/4/12
Diamond prospectivity of Mesoproterozoic lamproites in the Krishna valley at the northern and north-eastern margin
of the Cuddapah Basin, southern India, is a matter of significance since several his...
Ab-initio calculations for the beta-tin diamond transition in Silicon: comparing theories with experiments
Ab-initio calculations for the beta-tin diamond transition Silicon:
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2010/11/19
We investigate the pressure-induced metal-insulator transition from diamond to β-tin in bulk Silicon,using quantum Monte Carlo (QMC) and density functional theory (DFT) approaches. We show
that it is...
Optically induced spin polarisation of the NV- centre in diamond: role of electron-vibration interaction
Optically induced spin polarisation NV- centre in diamond: role electron-vibration interaction
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2010/11/22
The novel aspect of the centre (NV−) in diamond is the high degree of spin polarisation achieved through optical illumination. In this paper it is shown that the spin polarisation occurs as a co...
Chemical control of the charge state of nitrogen-vacancy centers in diamond
Chemical control of the charge state nitrogen-vacancy centers in diamond
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2010/11/25
We investigate the e ect of surface termination on the charge state of nitrogen vacancy centers,which have been ion-implanted few nanometers below the surface of diamond. We nd that,when changing the...
Properties of nitrogen-vacancy centers in diamond: group theoretic approach
Properties nitrogen-vacancy centers diamond group theoretic approach
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2010/10/29
We present a procedure that makes use of group theory to analyze and predict the main properties of the negatively charged nitrogen-vacancy (NV) center in diamond. We focus on the relatively low tempe...
Spin dynamics in the optical cycle of single nitrogen-vacancy centres in diamond
Spin dynamics the optical cycle single nitrogen-vacancy centres diamond
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2010/10/29
We investigate spin-dependent decay and intersystem crossing in the optical cycle of single negatively-charged nitrogen-vacancy (NV) centres in diamond. We use spin control and pulsed optical excitati...