【公開日：2025.07.07】【最終更新日：2025.07.04】

課題データ / Project Data

課題番号 / Project Issue Number

22NI0405

利用課題名 / Title

Fe 系新化合物の⁵⁷Fe メスバウアー分光測定

利用した実施機関 / Support Institute

名古屋工業大学 / Nagoya Tech.

機関外・機関内の利用 / External or Internal Use

外部利用/External Use

技術領域 / Technology Area

【横断技術領域 / Cross-Technology Area】（主 / Main）計測・分析/Advanced Characterization（副 / Sub）物質・材料合成プロセス/Molecule & Material Synthesis

【重要技術領域 / Important Technology Area】（主 / Main）マテリアルの高度循環のための技術/Advanced materials recycling technologies（副 / Sub）高度なデバイス機能の発現を可能とするマテリアル/Materials allowing high-level device functions to be performed

キーワード / Keywords

メスバウアー分光/Mössbauer spectroscopy,資源代替技術/ Resource alternative technology

利用者と利用形態 / User and Support Type

利用者名（課題申請者）/ User Name (Project Applicant)

YANG Yang

所属名 / Affiliation

京都大学大学院工学研究科

共同利用者氏名 / Names of Collaborators Excluding Supporters in the Hub and Spoke Institutes

Hiroshi Kageyama

ARIM実施機関支援担当者 / Names of Supporters in the Hub and Spoke Institutes

Ko Mibu,Tomoko Onoue

利用形態 / Support Type

（主 / Main）共同研究/Joint Research（副 / Sub）-

利用した主な設備 / Equipment Used in This Project

NI-004：メスバウアー分光装置群

報告書データ / Report

概要（目的・用途・実施内容）/ Abstract (Aim, Use Applications and Contents)

We have succeeded in synthesizing a new quinary compound that is composed of alternate stacks of Fe-S containing layers and Ag-Te containing layers. To elucidate the electric state of Fe in this compound, which is not clear at the present stage, ⁵⁷Fe Mössbauer spectroscopic measurement was performed at room temperature.

実験 / Experimental

The powder sample was mixed with silicone grease and laminated on pure Al foil of 15 x 15 mm² to guarantee the randomness of crystal orientations. The ⁵⁷Fe Mössbauer spectrum was measured at room temperature by a conventional absorption method with the constant acceleration mode using a gamma-ray source of ⁵⁷Co in Rh matrix. The velocity of the source was calibrated using a standard spectrum of alpha-Fe foil, and the center of the spectrum was set to 0 mm/s.

結果と考察 / Results and Discussion

Since the amount of Fe in this compound is relatively small, it took about two weeks to obtain data with sufficient S/N ratio capable of fitting. From minute fitting of the obtained spectrum, it turned out that Fe in the measured sample is at 3 or 4 sites with different local environments. Identification of these sites and corresponding electronic states is now in progress.

図・表・数式 / Figures, Tables and Equations

その他・特記事項（参考文献・謝辞等） / Remarks(References and Acknowledgements)

We would like to thank Prof. K. Mibu and Ms. T. Onoue at Nagoya Institute of Technology for their technical supports for measurement and analysis of the Mössbauer spectrum.

成果発表・成果利用 / Publication and Patents

論文・プロシーディング（DOIのあるもの） / DOI (Publication and Proceedings)

口頭発表、ポスター発表および、その他の論文 / Oral Presentations etc.

特許 / Patents

特許出願件数 / Number of Patent Applications：0件
特許登録件数 / Number of Registered Patents：0件