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. 2017 Mar 30;4(4):044012. doi: 10.1063/1.4979643

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© 2017 Author(s).

2329-7778/2017/4(4)/044012/10

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FIG. 4. — Temporal evolution of the Bragg peak intensity of 1T-TaSeTe excited by the fs-laser with a fluence of 7mJ/cm². (a) Electron diffraction pattern slightly off the [212] zone-axis direction. In this pattern, the deviation parameter s has been carefully tuned by controlling the crystal orientation, i.e., diffraction spots from the Bragg position have their s > 0 in area A, s ≅ 0 in area B, and s < 0 in area C. (b) Temporal changes of Bragg peak intensities for typical diffraction spots in areas A, B, and C, respectively, clearly illustrating the presence of unusual temporal features for the spots in different areas.