Results 11 to 20 of about 2,402,463 (266)
The recent report of superconductivity in nitrogen-doped lutetium hydride (Lu-H-N) at 294 K and 1 GPa brought hope for long-sought-after ambient-condition superconductors.
Di Peng +5 more
doaj +1 more source
Hexagonal B–C–N composite consisting of h-BN and graphite separated by B–C nanolayer [PDF]
Graphite and hexagonal boron nitride (h-BN), despite their structural similarity, exhibit opposing electronic properties, namely, metallic conductivity and wide-bandgap insulation, respectively.
Baoyin Xu +12 more
doaj +1 more source
Enhancing reversibility of LiNi0.5Mn1.5O4 by regulating surface oxygen deficiency
Oxygen deficiency has crucial effects on the crystal structure and electrochemical performance of spinel oxide lithium electrode materials such as LiNi0.5Mn1.5O4 (LNMO) cathode.
Dandan Wang +8 more
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Some Magnetic Properties and Magnetocaloric Effects in the High-Temperature Antiferromagnet YbCoC2
The YbCoC2 compound, which crystallizes in a base-centered orthorhombic unit cell in the Amm2 space group CeNiC2 structure, is unique among Yb-based compounds due to the highest magnetic ordering temperature of TN=27 K.
Denis Alexandrovich Salamatin +7 more
doaj +1 more source
Phase transition mechanism and bandgap engineering of Sb2S3 at gigapascal pressures
Antimonite (Sb2S3) has potential applications for solar energy, but how its layered structure changes under pressure is incompletely understood. Here diamond anvil cell experiments supported by first principles calculations offer a structural explanation
Zhongxun Cui +9 more
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Room-Temperature Synthesis of Tubular Hexagonal Boron Nitride under Pressure
Hexagonal boron nitride (h-BN) exhibits interesting optical and mechanical properties, including chemical and thermal stability. Extensive techniques have been applied for the realization of h-BN at high temperatures.
Junkai Li +4 more
doaj +1 more source
Pressure calibrations of high-pressure large-volume presses at HPSTAR [PDF]
Large-volume presses (LVPs) are widely utilized in diverse research fields—including high-pressure physics, chemistry, materials science, and Earth and planetary sciences—to investigate the physical and chemical properties of materials under extreme high-
Yongjiang Xu +38 more
doaj +1 more source
Everything you always wanted to know about metallic hydrogen but were afraid to ask
The hydrogen molecule is made from the first and lightest element in the periodic table. When hydrogen gas is either compressed or cooled, it forms the simplest molecular solid. This solid exhibits many interesting and fundamental physical phenomena.
Eugene Gregoryanz +5 more
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Pressure-Induced Polymerization: Addition and Condensation Reactions
Under pressure of 1–100 GPa, unsaturated organic molecules tend to form covalent bond to each other for a negative enthalpy change, which often produces polymeric materials with extended carbon skeleton.
Fang Li +4 more
doaj +1 more source
ABSTRACT Introduction Adolescent siblings of children with cancer are at elevated risk for psychosocial problems. Unfortunately, various barriers such as limited family time and resources, conflicting schedules, and psychosocial staffing constraints at cancer centers hinder sibling access to support.
Christina M. Amaro +10 more
wiley +1 more source

