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Manipulation of vortices by localized impurities in Bose-Einstein condensates
Bose-einstein condensate whirlpool optical potential focused laser beam laser
2014/12/24
We consider the manipulation of Bose-Einstein condensate vortices by optical potentials generated by focused laser beams. It is shown that for appropriate choices of the laser strength and width it is...
Effects of the contents of impurities and seed hulls on the quality of cold-pressed sunflower oil
seed hulls dehulled kerner sensory characteristics chemical quality oxidative stability cold-pressed sunflower oil
2014/2/25
The effects of different contents of impurities and seed hulls in the raw material on the sensory characteristics, chemical quality, and oxidative stability of sunflower oil prepared by the procedure ...
Effect of Impurities on the Superheating field of Type II superconductors
Impurities the Superheating field Type II superconductors
2012/2/27
We consider the effect of nonmagnetic and magnetic impurities on the superheating field $H_s$ in a type-II superconductor. We solved the Eilenberger equations, which take into account the nonlinear pa...
Subsurface impurities and vacancies in a three-dimensional topological insulator
Subsurface impurities vacancies three-dimensional topological insulator
2012/2/24
Using a three-dimensional microscopic lattice model of a strong topological insulator (TI) we study potential impurities and vacancies in surface and subsurface positions. For all impurity locations w...
We used a quantum Monte Carlo method to study the magnetic impurity adatoms on graphene. We found that by tuning the chemical potential we could switch the values of the impurity local magnet moment b...
Amplifying single impurities immersed in a gas of ultra cold atoms
ultra cold atoms impurities
2011/9/15
We present a method for amplifying a single or scattered impurities immersed in a background gas of ultra cold atoms so that they can be optically imaged and spatially resolved. Our approach relies on...
Absorption of radiation by ice is extremely weak at visible and near-ultraviolet wavelengths, so small amounts of light-absorbing impurities in snow can dominate the absorption of solar radiation at t...
Striped morphologies induced by magnetic impurities in d-wave superconductors
stripe impurity d-wave superconductors
2010/11/22
We study striped morphologies induced by magnetic impurities in d-wave superconductors
(DSCs) near optimal doping by self-consistently solving the Bogoliubov-de Gennes equations based on the t −...
Scattering of band carriers by neutral and charged impurities
Scattering of band carriers by neutral charged impurities
2010/11/24
Mobility of band carriers scattered on donors, partially ionized, partially neutral, is considered in general and calculated for crystals of AIII-BV group. As neutral impurity we have constructed the ...
Local electronic structure of Fe$^{2+}$ impurities in MgO thin films: Temperature-dependent soft x-ray absorption spectroscopy study
Local electronic structure of Fe$^{2+}$ impurities Temperature-dependent soft x-ray absorption spectroscopy study
2010/11/18
We report on the local electronic structure of Fe impurities in MgO thin films. Using soft x-ray absorption spectroscopy (XAS) we verified that the Fe impurities are all in the 2+ valence state.The fi...
Interaction anisotropy and random impurities effects on the critical behaviour of ferromagnets
Interaction anisotropy random impurities effects critical behaviour of ferromagnets
2010/11/23
The theory of phase transitions is based on the consideration of "idealized" models, such as the Ising model: a system of magnetic moments living on a cubic lattice and having only two accessible stat...
First-principles modeling of the interactions of iron impurities with graphene and graphite
First-principles modeling of the interactions graphene graphite
2010/11/19
Results of first principles modelling of interactions graphene and graphite with iron
impurities predict the colossal difference between these two carbon allotropes. Insertion
of the iron atoms betw...
A Multidisciplinary Investigation to Determine the Structure and Source of Dimeric Impurities in AMG 517 Drug Substance
International Conference on Harmonization mass spectrometry multiple-quantum correlation
2009/9/4
In the initial scale-up batches of the experimental drug substance AMG 517, a pair of unexpected impurities was observed by HPLC. Analysis of data from initial LC-MS experiments indicated the presence...
Chemical specifications for high purity gold have grown increasingly stringent as manufacturers strive to improve quality control. Once 999.9-fine grain and bullion bars were accepted without question...
Reduced description of light impurities in hydrogen coronal plasmas
hydrogen coronal plasmas light impurities
2009/6/4
Reduced description of light impurities in hydrogen coronal plasmas。