Single-shot X-ray imaging of two-dimensional strain fields in colloidal crystals.

• Tác giả: Jiacheng Diao, Jiadong Fan, Zichen Gao, Huaidong Jiang, Yonggan Nie, Hang Ren, Ian Robinson, Yajun Tong
• Ngôn ngữ: eng
• Ký hiệu phân loại: 296.83322 Denominations and movements
• Thông tin xuất bản: England : IUCrJ , 2025
• Bộ sưu tập: NCBI
• ID: 54620

Tóm tắt

We used a soft X-ray free-electron laser and the Bragg coherent diffraction imaging method to characterize the defect structure of colloidal crystals. The single-shot X-ray pulse allowed us to reach four powder rings and measured all six reflections of the hexagonal lattice. We reproduced the static shape of the 2D crystal and mapped out the 2D strain tensors inside the crystal. The observed defect structures agreed with electron microscope images of similar colloidal samples.