Results 31 to 40 of about 236,274 (192)
MBE grown microcavities based on selenium and tellurium compounds [PDF]
, 2013 In this work, we present three groups of microcavities: based on selenium compounds only, based on tellurium compounds only, and structures based on mixed selenium and tellurium compounds. We focus on their possible applications in the field of optoelectronic devices and fundamental physics (VCSELs, narrow range light sources, studies of cavity ...
arxiv +1 more source
Direct MD simulation of liquid-solid phase equilibria for two-component plasmas [PDF]
Phys. Rev. E 85, 066405 (2012), 2011 We determine the liquid-solid phase diagram for carbon-oxygen and oxygen-selenium plasma mixtures using two-phase MD simulations. We identified liquid, solid, and interface regions using a bond angle metric. To study finite size effects, we perform 27648 and 55296 ion simulations.
arxiv +1 more source
Amorphous Selenium Mie Resonators for Infrared Meta-Optics [PDF]
arXiv, 2021 Applying direct growth and deposition of optical surfaces holds great promise for the advancement of future nanophotonic technologies. Here, we report on a chemical vapor deposition (CVD) technique for depositing amorphous selenium (a-Se) spheres by desorption of selenium from Bi2Se3 and re-adsorption on the substrate.
arxiv
Nano-selenium and its nanomedicine applications: a critical review
International Journal of Nanomedicine, 2018 Traditional supplements of selenium generally have a low degree of absorption and increased toxicity. Therefore, it is imperative to develop innovative systems as transporters of selenium compounds, which would raise the bioavailability of this element ...
B. Hosnedlova +12 more
semanticscholar +1 more source
The role of selenium metabolism and selenoproteins in cartilage homeostasis and arthropathies
Experimental and Molecular Medicine, 2020 As an essential nutrient and trace element, selenium is required for living organisms and its beneficial roles in human health have been well recognized.
Donghyun Kang +6 more
semanticscholar +1 more source
American Journal of Clinical Nutrition, 2020 Background Antioxidants have been promoted for cardiovascular disease (CVD) risk reduction and for the prevention of cancer. Our preliminary analysis suggested that only when selenium was present were antioxidant mixtures associated with reduced all ...
D. Jenkins +11 more
semanticscholar +1 more source
Germanium, Arsenic, and Selenium Abundances in Metal-Poor Stars [PDF]
, 2012 The elements germanium (Ge, Z=32), arsenic (As, Z=33), and selenium (Se, Z=34) span the transition from charged-particle or explosive synthesis of the iron-group elements to neutron-capture synthesis of heavier elements. Among these three elements, only the chemical evolution of germanium has been studied previously.
arxiv +1 more source
The Stoichiometry of FeSe [PDF]
Sol. St. Comm. 149, 1507-1509 2009, 2009 Tetragonal iron selenide, FeSe, the layered parent compound of the recently discovered superconducting arsenide family, has previously been shown to be non magnetic and superconducting with a critical temperature near 8 K. There has, however, been a lack of consensus as to whether selenium vacancies present due to large deviations from ideal ...
arxiv +1 more source
Large Second-Harmonic Generation and Linear Electro-Optic Effect in Trigonal Selenium and Tellurium [PDF]
Phys. Rev. B 100, 035202 (2019), 2019 Trigonal selenium and tellurium crystalize in helical chain-like structures and thus possess interesting properties such as current-induced spin polarization, gyrotropic effects and nonlinear optical responses. By performing systematic ab initio calculations based on density functional theory in the generalized gradient approximation plus scissors ...
arxiv +1 more source
Nutrients, 2018 Micronutrient deficiency and depression are major global health problems. Here, we first review recent empirical evidence of the association between several micronutrients—zinc, magnesium, selenium—and depression.
Jessica Wang +3 more
semanticscholar +1 more source