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Pyroelectricity
Pyroelectricity is the ability of certain materials to generate an electrical potential when they are heated or cooled. As a result of this change in temperature, positive and negative charges move to opposite ends through migration (i.e. the material becomes polarised) and hence, an electrical potential is established. Pyroelectricity can be visualized as one side of a triangle, where each corner represents energy states in the crystal: kinetic, electrical and thermal energy. The side between electrical and thermal corners represents the pyroelectric effect and produces no kinetic energy. The side between kinetic and electrical corners represents the piezoelectric effect and produces no heat.
Although artificial pyroelectric materials have been engineered, the effect was first discovered in minerals such as quartz and tourmaline and other ionic crystals.
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Matter & Energy News
October 19, 2025
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Oct. 18, 2025 — A collaboration between the University of Michigan and AFRL has resulted in 3D-printed metamaterials that can block vibrations using complex geometries. Inspired by nature and theoretical physics, these “kagome tubes” demonstrate how geometry ...
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Oct. 10, 2025 — Scientists at EPFL have reimagined 3D printing by turning simple hydrogels into tough metals and ceramics. Their process allows multiple infusions of metal salts that form dense, high-strength structures without the porosity of earlier methods. ...
Oct. 8, 2025 — Researchers have found a way to extract almost every photon from diamond color centers, a key obstacle in quantum technology. Using hybrid nanoantennas, they precisely guided light from nanodiamonds into a single direction, achieving 80% efficiency ...
Oct. 8, 2025 — In a remarkable leap for quantum physics, researchers in Japan have uncovered how weak magnetic fields can reverse tiny electrical currents in kagome metals—quantum materials with a woven atomic structure that frustrates electrons into forming ...
Oct. 7, 2025 — An international team has confirmed that large quantum systems really do obey quantum mechanics. Using Bell’s test across 73 qubits, they proved the presence of genuine quantum correlations that can’t be explained classically. Their results show ...
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Oct. 5, 2025 — A Penn State research team found that streetlights could double as affordable EV charging stations. After installing 23 units in Kansas City, they discovered these chargers were faster, cheaper, and more eco-friendly than traditional stations. Their ...
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Oct. 15, 2025 — Scientists at TU Wien have uncovered that quantum correlations can stabilize time crystals—structures that oscillate in time without an external driver. Contrary to previous assumptions, quantum ...
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Oct. 15, 2025 — Scientists at the University of Cambridge have uncovered a surprising quantum effect inside an organic material, something once thought impossible outside metals. The team found that a special ...
Oct. 14, 2025 — MIT researchers found that metals retain hidden atomic patterns once believed to vanish during manufacturing. These patterns arise from microscopic dislocations that guide atoms into preferred ...
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