Site selective atomic imaging by establshment of synchrotron radiation gamma ray holography

2014 Fiscal Year Final Research Report

• Project/Area Number: 24656367
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Physical properties of metals
• Research Institution: Tohoku University
• Principal Investigator: HAYASHI koichi 東北大学, 金属材料研究所, 准教授 (20283632)
• Co-Investigator(Kenkyū-buntansha): TERAI Tomoyuki 大阪大学, 大学院工学研究科, 講師 (20346183)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 原子分解能ホログラフィー / γ線ホログラフィー / ヘマタイト / メスバウアー効果

Outline of Final Research Achievements

Intensity variations of the prompt and delayed X-ray fluorescence were measured with changing the direction of the sample. Two dimensional patterns of the prompt and delayed X-ray fluorescence were quite different; the former showed threefold symmetry and X-ray standing wave lines like X-ray fluorescence hologram, but the latter showed twofold symmetry. The twofold symmetry is considered to be related to nuclear magnetic moment because of Mossbaur effect. Taking into account the magnetization direction of the sample and magnet field of the incident X-rays, the M1 transition absorption process was possible reason of this phenomenon.

Free Research Field

X線物理