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Demonstrates gold nanoparticles elongate in silica glass under ion irradiation, suggesting fabrication potential for advanced materials.
Gold nanoparticles aligned with the same distance are fabricated in silica using the method of electron beam lithography. When swift heavy ions are irradiated to it, elongation of gold nanoparticles toward the same direction to the ion propagation direction was observed. Elongation length of gold nanoparticles depends on ion flux, fluence and energy. Temperature as a function of penetration time was calculated by the thermal spike model. When simulated temperature exceeds to melting temperature of silica glass and gold, elongation of gold nanoparticles was observed.
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Koichi Awazu (2019) studied this question.
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