Observation of Magnetic Domain Structure in Fe<SUB>81</SUB>B<SUB>15</SUB>Si<SUB>4</SUB> Amorphous Alloy by Lorentz Microscopy and Electron Holography

• Hiraoka Masahiro

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Akase Zentaro

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Shindo Daisuke

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Ogawa Yuichi

  Metglas, Inc.

• Yoshizawa Yoshihito

  Advanced Electronics Research Laboratory, Hitachi Metals Ltd.

Bibliographic Information

Other Title

• Observation of magnetic domain structure in Fe81B15Si4 amorphous alloy by Lorentz microscopy and electron holography

Abstract

Effects of heat treatment, with and without an external magnetic field, on the magnetic properties of Fe₈₁B₁₅Si₄ amorphous specimens are investigated by Lorentz microscopy and electron holography. These observations are used to clarify the details of magnetizing processes in the specimens. It is found that heat-treatment with an external magnetic field increases the magnetic anisotropy, while that without reduces the magnetic anisotropy. It is considered that this difference results from the alleviation of the strain field by heat treatment and the induced magnetic anisotropy caused by heat treatment with a magnetic field.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 50 (12), 2839-2843, 2009

  The Japan Institute of Metals and Materials

Keywords

• amorphous magnetic materials
• Lorentz microscopy
• electron holography
• magnetic domain structure
• heat treatment

Details

• CRID: 1390282679227914368
• NII Article ID: 10026263981
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.m2009278
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 10458218
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10458218
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/50/12/50_M2009278/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed