EXAFS Study for Mechanically Alloyed Co_<50>C_<50>

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概要

• 論文の詳細を見る

• Co_<50>C_<50> alloys were fabricated by mechanical alloying process from the mixed powder of pure cobalt and carbon. The variations of the local structure and magnetic properties were examined by EXAFS analysis and the VSM magnetometer. It is shown that the alloying was progressed as the milling time increases. The significant changes of the magnetization and the structure has been occured in 12h milling. EXAFS spectrum and its Fourier transform confirms that the final product is in the amorphous state. The EXAFS spectrum of the alloy milled for 24h was fitted to the conventional EXAFS equation. The interatomic distances obtained from the fitting were 1.94±0.02Å for Co-C pair and 2.52±0.02Å for Co-Co pair, respectively. The magnetization was almost saturated in 24h milling.

• 社団法人日本物理学会の論文
• 2002-02-15

著者

• YU Seong-Cho

  Department of Physics, Chung-Buk National University

• Yoo Yong-goo

  Regional Innovation Agency Chungbuk Technopark

• Yang Dong

  Physics Division School Of Science Education Chungbuk National University

• Kim In-mook

  Fakultat 4 Theoretische Physik Gerhard-mercator-universitat Duisburg

• Yu Seong

  Department Of Physics Chungbuk National University

• Yu Seong-cho

  Department Of Physics Chung-buk National University:department Of Physics University Of Maryland

• Yang D‐s

  Physics Division School Of Science Education Chungbuk National University

• YANG Dong-Seok

  Physics Division, School of Science Education, Chungbuk National University

• KIM Ikgyun

  Physics Division, School of Science Education, Chungbuk National University

• YOO Yong-Goo

  Department of Physics, Chungbuk National University

• Kim Ikgyun

  Physics Division School Of Science Education Chungbuk National University

• Dong-seok Yang

  Department Of Physics Chungbuk National University

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