Results 131 to 140 of about 688,796 (395)
Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals
Advanced Functional Materials, EarlyView.Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus +5 more
wiley +1 more source
Fatigue of boron-aluminum composites bonds and joints [PDF]
, 1973 Study examines effects of boron filament diameter on bonds and joints in boron-aluminum composite. Data include static strength, fatigue, and dynamic moduli of elasticity. Manson-Coffin analyses and metallurgical and fracture surface evaluation were also
Hersh, M. S.
core +1 more source
On the Hardness of a New Boron Phase, Orthorhombic {\gamma}-B28
, 2011 Measurements of the hardness of a new high-pressure boron phase, orthorhombic {\gamma}-B28, are reported. According to the data obtained, {\gamma}-B28 has the highest hardness (~50 GPa) of all known crystalline modifications of ...
A. R. Oganov +10 more
core +1 more source
A Scalable, Durable, Fire‐Safe All‐Day Passive Radiative Cooling Coating for Sustainable Buildings
Advanced Functional Materials, EarlyView.This study reports a scalable, durable coating that combines a fire‑retardant copolymer adhesive, hollow glass microspheres, and boron oxide to achieve passive radiative cooling with over 94% solar reflectance and >95% mid‑infrared emissivity. The coating maintains performance after UV and rain exposure and exhibits UL‑94 V‑0 fire resistance, enabling ...
Zhewen Ma +8 more
wiley +1 more source
Reaction cured glass and glass coatings [PDF]
, 1978 The invention relates to reaction cured glass and glass coatings prepared by reacting a compound selected from the group consisting of silicon tetraboride, silicon hexaboride, other boron silicides, boron and mixtures with a reactive glass frit composed ...
Goldstein, H. E. +2 more
core +1 more source
Direct band-gap crossover in epitaxial monolayer boron nitride
Nature Communications, 2019 Hexagonal boron nitride is a large band-gap insulating material which complements the electronic and optical properties of graphene and the transition metal dichalcogenides.
C. Elias +11 more
semanticscholar +1 more source
Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis
Advanced Functional Materials, EarlyView.An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra +8 more
wiley +1 more source
National Revival in the Works of Taras Shevchenko and Ján Kollár: Overlaps and Controversies [PDF]
Slovenska Literatura, 2019 The paper sets a goal to find out whether Taras Shevchenko knew particular works of Ján Kollár, to point out possible contacts as well as typological overlaps between the both writers in terms of reflecting on national revival and also to draw attention ...
Oleksandr Boroň
doaj
Boron in groundwater of the Island of Cyprus [PDF]
, 2001 Boron can be found in high concentrations in the groundwater of the Island of Cyprus, especially in the central part of the island. Boron in high concentrations is of major concern due to its toxicity to both animals and irrigated plants.
Eleftheriou, Polyvios
core +1 more source
Absence of boron aggregates in superconducting silicon confirmed by atom probe tomography
, 2012 Superconducting boron-doped silicon films prepared by gas immersion laser doping (GILD) technique are analyzed by atom probe tomography. The resulting three-dimensional chemical composition reveals that boron atoms are incorporated into crystalline ...
Boulmer, J. +9 more
core +3 more sources