Theoretical Study of Transient X-ray Speckles in Photoinduced Nucleation

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概要

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• Transient x-ray speckle patterns at 0 K in the early stage of photoinduced nucleation processes are theoretically studied. By employing a model of localized electrons coupled with quantized phonons, we found that various types of speckles appear in diffraction patterns, and that the nature of the incubation period and/or coalescence of photoinduced domains is discussed by their time-dependent profiles or their two-time correlation function g^{(2)}. Thus, measurement of transient x-ray speckles by ultrashort coherent x-ray pulses will be a direct way to reveal the mechanism of photoinduced structural change.

• 2012-06-15

著者

• Ishida Kunio

  Corporate Research And Development Center Toshiba Corporation

• Nasu Keiichiro

  Solid State Theory Division Institute Of Materials Structure Science Kek:graduate University For Adv

• Nasu Keiichiro

  Solid State Theory Division, Institute of Materials Structure Science, KEK, Tsukuba, Ibaraki 305-0801, Japan

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