Results 31 to 40 of about 254,988 (247)
Quadrupolar magnetic excitations in an isotropic spin-1 antiferromagnet
Nature 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
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JOINT DIAMONDS AND LAVER DIAMONDS [PDF]
The Journal of Symbolic Logic, 2019 Abstract The concept of jointness for guessing principles, specifically ${\diamondsuit _\kappa }$ and various Laver diamonds, is introduced. A family of guessing sequences is joint if the elements of any given sequence of targets may be simultaneously guessed by the members of the family. While equivalent in the case of
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Quasi-hydrostatic equation of state of silicon up to 1 megabar at ambient temperature
Scientific Reports, 2019 The isothermal equation of state of silicon has been determined by synchrotron x-ray diffraction experiments up to 105.2 GPa at room temperature using diamond anvil cells.
Simone Anzellini +5 more
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Mathematical 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.
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Chemical Reviews, 2020 Nitrogen is ubiquitous in both natural and laboratory-grown diamond, but the number and nature of the nitrogen-containing defects can have a profound effect on the diamond material and its properties. An ever-growing fraction of the supply of diamond appearing on the world market is now lab-grown.
Michael N. R. Ashfold +5 more
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Population-based HIV prevalence, stigma and HIV risk among trans women in Nepal
BMC 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
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Wave radiation by a horizontal circular cylinder submerged in deep water with ice-cover
Journal of Ocean Engineering and Science, 2019 Using the multipoles method, we formulate the problems of water wave radiation (both heave and surge) by a submerged circular cylinder in water with an ice-cover, the ice-cover being modelled as an elastic plate of very small thickness.
Dilip Das, Manomita Sahu
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Magnetic excitations beyond the single- and double-magnons
Nature Communications, 2023 A photon carrying one unit of angular momentum can change the spin angular momentum of a magnetic system with one unit (ΔMs = ±1) at most. This implies that a two-photon scattering process can manipulate the spin angular momentum of the magnetic system ...
Hebatalla Elnaggar +7 more
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IMA 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
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High-speed X-ray ptychographic tomography
Scientific Reports, 2022 X-ray ptychography is a coherent scanning imaging technique widely used at synchrotron facilities for producing quantitative phase images beyond the resolution limit of conventional x-ray optics.
Darren Batey +2 more
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