Tag Archives: hexagonal boron nitride
A microscope that catches the slightest hints of heat
A superconducting transition-edge sensor (TES) is a device well-known for its extreme sensitivity to photons, the particles of light — so much so that they can count photons one by one. They also have very little noise, which makes their … Continue reading
Posted in Scicomm
Tagged atomic force microscopy, bolometry, critical temperature, electromagnetic fields, hexagonal boron nitride, hyperbolic phonon-polaritons, infrared laser, niobium, optical power, phonons, quantum materials, quasiparticles, scanning probe, superconductor, terahertz fields, transiditransition-edge sensors
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Boron nitride, tougher than it looks
During World War I, a British aeronautical engineer named A.A. Griffith noticed something odd about glass. He found that the atomic bonds in glass needed 10,000 megapascals of stress to break apart – but a macroscopic mass of glass could … Continue reading
Posted in Scicomm
Tagged boron nitride, crack deflection, elastic energy, fracture mechanics, free energy, graphene, Griffith's law, hexagonal boron nitride, monolayer graphene, monolayer h-BN, sphalerite, surface energy, tensile strength, wearable electronics, wurtzite
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