P

100 nm

Figure 20. HRTEM images (left) and PS (right) of a Cu rod tilted by, from top to bottom, +36°, o°, —36°. Reprinted with permission from [13], A. Lisiecki et al., Phys. Rev. B 61, 4968 (2ooo). © 2ooo, American Physical Society.

tions 1, 4, and 7 are very close to the bulk data of Cu of reflections 111, 2oo, and o2o, respectively, that is, o.2o87 nm, o.18o8 nm, and o.18o8 nm. The small deviations can be explained by deformations within the particle, which are also present in the case of MTPs. Furthermore, the existence of the 111 reflection together with the 2oo and o2o reflections indicates that the particle must consist of more than one subunit (twinning). In Figure 22 a superstructure

Figure 21. HRTEM images (left) and PS (right) of a Cu rod tilted by, from top to bottom, +18°, —18°. Reprinted with permission from [13], A. Lisiecki et al., Phys. Rev. B 61, 4968 (2ooo). © 2ooo, American Physical Society.

Figure 19. Electron micrograph of long extended rods. Reproduced with permission from [13], A. Lisiecki et al., Phys. Rev. B 61, 4968 (2ooo). © 2ooo, American Physical Society.

Figure 21. HRTEM images (left) and PS (right) of a Cu rod tilted by, from top to bottom, +18°, —18°. Reprinted with permission from [13], A. Lisiecki et al., Phys. Rev. B 61, 4968 (2ooo). © 2ooo, American Physical Society.

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