Title:
FERRITE MATERIAL HAVING COMPOSITION GRADIENT FOR MEASUREMENT OF MAGNETO-OPTICAL EFFECT AND METHOD FOR EVALUATING PROPERTIES OF FERRITE
Document Type and Number:
WIPO Patent Application WO/2010/107098
Kind Code:
A1
Abstract:
Provided is a method for evaluating the properties of a ferrite with which it is possible to continuously measure changes in magnetic properties that accompany changes in ferrite composition by preparing one sample only. A ferrite thin film having a composition gradient, which consists of multiple ferrite layers having a composition gradient and is obtained by film formation with the component composition graded in the horizontal direction, is formed by thin-film formation on a light-transmitting single crystal substrate, and the changes in magnetic properties that accompany changes in the ferrite composition are continuously measured by measuring the magneto-optical effect continuously in the direction of the composition gradient of the ferrite thin film.
Inventors:
IWASAKI, Yosuke (Shibakoen First Building,8-2,Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
岩▲崎▼洋介 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビルＪＦＥミネラル株式会社内 Tokyo, 〒1050014, JP)
KAWASAKI, Masashi (1-1 Katahira 2-chome, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
岩▲崎▼洋介 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビルＪＦＥミネラル株式会社内 Tokyo, 〒1050014, JP)
KAWASAKI, Masashi (1-1 Katahira 2-chome, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
Application Number:
JP2010/054722
Publication Date:
September 23, 2010
Filing Date:
March 12, 2010
Export Citation:
Assignee:
JFE MINERAL COMPANY,LTD (Shibakoen First Building, 8-2Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
ＪＦＥミネラル株式会社 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビル Tokyo, 〒1050014, JP)
TOHOKU UNIVERSITY (1-1 Katahira 2-chome, Aoba-ku Sendai-sh, Miyagi 77, 〒9808577, JP)
国立大学法人東北大学 (〒77 宮城県仙台市青葉区片平二丁目１番１号 Miyagi, 〒9808577, JP)
IWASAKI, Yosuke (Shibakoen First Building,8-2,Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
ＪＦＥミネラル株式会社 (〒14 東京都港区芝三丁目８番２号芝公園ファーストビル Tokyo, 〒1050014, JP)
TOHOKU UNIVERSITY (1-1 Katahira 2-chome, Aoba-ku Sendai-sh, Miyagi 77, 〒9808577, JP)
国立大学法人東北大学 (〒77 宮城県仙台市青葉区片平二丁目１番１号 Miyagi, 〒9808577, JP)
IWASAKI, Yosuke (Shibakoen First Building,8-2,Shiba 3-chome, Minato-k, Tokyo 14, 〒1050014, JP)
International Classes:
H01F10/20; H01F41/18; H01F41/20; H01F41/22
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JFE Techno-Research Corporation,,7th Floor, Yanagiya Building, 1-10, Nihonbashi 2-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
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