Crystalline systems are physical systems in which constituent particles (atoms, ions, or molecules) are arranged in a periodic lattice that exhibits long-range translational order. They are characterized by discrete symmetry operations described by space groups, with unit cells repeating periodically in one, two, or three dimensions. This periodicity gives rise to well-defined Brillouin zones, phonon dispersion relations, and electronic band structures, which critically determine mechanical, optical, thermal, and electronic properties. Crystalline systems serve as fundamental models in condensed matter physics for studying phase transitions, defects (dislocations, vacancies), and emergent phenomena such as superconductivity and ferroelectricity.
Scientists and engineers at the University of Nottingham have measured the stiffness of space rock for the first time. Many meteorites are made of crystalline materials, formed under exotic conditions that cannot be replicated ...
Planetary Sciences
May 16, 2025
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In our study published in the Journal of the American Chemical Society, our team from The University of Hong Kong and Northwestern University, led by the late Nobel Laureate Professor Fraser Stoddart, developed RP-H200, a ...
Wurtzite-structured crystals, characterized by their hexagonal symmetry, are widely valued for their unique electronic and piezoelectric properties—their ability to generate an electric charge when subjected to mechanical ...
Nanophysics
Apr 30, 2025
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Nanomaterials are the future of modern technology. From powering batteries to improving clean energy systems and efficient catalysts, nanomaterials are everywhere. Their unique properties often arise from the precise arrangements ...
Nanomaterials
Apr 28, 2025
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One longstanding problem has sidelined life-saving drugs, stalled next-generation batteries, and kept archaeologists from identifying the origins of ancient artifacts.
Nanophysics
Apr 28, 2025
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A research team has successfully observed and identified the water-induced degradation mechanism of perovskite, which is a next-generation optoelectronic material, in real time at the atomic scale. Published in Matter, this ...
Nanomaterials
Apr 9, 2025
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A research team has successfully fine-tuned the Rabi oscillation of polaritons, quantum composite particles, by leveraging changes in electrical properties induced by crystal structure transformation. Published in Advanced ...
Condensed Matter
Apr 9, 2025
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Twisted moiré photonic crystals—an advanced type of optical metamaterial—have shown enormous potential in the race to engineer smaller, more capable and more powerful optical systems. How do they work?
Optics & Photonics
Apr 3, 2025
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The melting of crystals is the process by which an increase in temperature induces the disruption of the ordered crystalline lattice, leading to the disordered structure and highly fluctuating dynamic behavior of liquids. ...
Scientists at IMDEA Nanociencia are working on the development of materials whose properties can change as easily as we flip a switch. They focus on joining molecular switching (spin transition), electrical transport properties ...
Nanophysics
Apr 3, 2025
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