Why are high temperatures required in the synthesis of superconductors? (ex: yba2cu3o7)?
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Scientists at the University of Aberdeen have made a major breakthrough towards the mechanism of high-temperature superconductivity. ... Superconductors are so-called because they do not exhibit electrical resistance and hence do not suffer from losses in electrical current.
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The acoustic phonons frequencies are generally known as low frequency phonons (≈ 0 to few hundreds) while the optical phonons are high frequency phonons. Low frequency phonons (acoustic phonons) are important to understand the role of phonons in electrical and thermal properties of materials.
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