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First Atomic-Level Observation of Phonon Behavior in Nanoengineered Quantum Dots

As electronic, thermoelectric and computer technologies have been miniaturized to nanometer scale, engineers have faced a challenge studying fundamental properties of the materials involved; in many cases, targets are too small to be observed with optical instruments. ....

United States , Xingxu Yan , Laura Thomsonjun , Xiaoqing Pan , Ruqian Wu , University Of California , Irvine Materials Research Institute , Massachusetts Institute Of Technology , Massachusetts Institute , Henry Samueli Endowed Chair , Irvine Materials Research , Chaitanya Gadre ,

Differentially Mapping Phonon Momenta with Atomic Resolution

Engineers have encountered difficulty in studying the basic properties of the materials involved as thermoelectric electronic, and computer technologies have been miniaturized to nanometer scale. And in many cases, targets are too small to be seen with optical instruments. ....

United States , Sheng Wei Lee , Xingxu Yan , Xiaoqing Pan , Ruqian Wu , University Of California , National Central University , Irvine Materials Research Institute , Study Co , Massachusetts Institute Of Technology , National Science Foundation , Steven Zylius University Of California Irvine , Technique Differentially Maps Phonon Momenta , Henry Samueli Endowed Chair , Ultra Scanning Transmission Electron , Image Credit , Massachusetts Institute , Study Co Author , Materials Science , Chaitanya Gadre , Energy Office , Basic Energy Sciences , Gang Chen ,

foundry-planet.com - B2B Portal: Advanced Casting Research Center

Advanced Casting Research Center ....

United States , Institute For Design , Buehler Center , Irvine Materials Research Institute , Research Center , Solutions Inc , Advanced Casting Research Center , North America , Olympus Microscopy , Instron Model , Correlated Solutions , Additive Manufacturing , Manufacturing Innovation , Laser Engineered Net Shaping , Aunching New Acrc Foundry And Labs , Uehler Center Of Excellence , Digital Transformation Age ,

UCI scientists measure local vibrational modes at individual crystalline faults

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Irvine, Calif., Jan. 11, 2021 - Often admired for their flawless appearance to the naked eye, crystals can have defects at the nanometer scale, and these imperfections may affect the thermal and heat transport properties of crystalline materials used in a variety of high-technology devices.
Employing newly developed electron microscopy techniques, researchers at the University of California, Irvine and other institutions have, for the first time, measured the spectra of phonons - quantum mechanical vibrations in a lattice - at individual crystalline faults, and they discovered the propagation of phonons near the flaws. The team s findings are the subject of a study published recently in ....

United States , Department Of Energy , District Of Columbia , Orange County , Howard Gillman , Xiaoqing Pan , China Henan University , University Of California , Irvine Materials Research Institute , Association Of American Universities , National Science Foundation , Cornell University , Samueli Endowed Chair , Active Materials , National Science , Basic Energy Sciences , Henan University , Chancellor Howard Gillman , Chemistry Physics Materials Sciences , Atomic Molecular Particle Physics , Superconductors Semiconductors , Nanotechnology Micromachines , Atomic Physics , ஒன்றுபட்டது மாநிலங்களில் , துறை ஆஃப் ஆற்றல் , மாவட்டம் ஆஃப் கொலம்பியா ,