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DEVICE AND METHOD FOR ACQUIRING A FIELD BY MEASUREMENT

外国特許コード F090002072
整理番号 F090002072
掲載日 2009年5月15日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2008JP056137
国際公開番号 WO 2008/123432
国際出願日 平成20年3月28日(2008.3.28)
国際公開日 平成20年10月16日(2008.10.16)
優先権データ
  • 特願2007-091856 (2007.3.30) JP
発明の名称 (英語) DEVICE AND METHOD FOR ACQUIRING A FIELD BY MEASUREMENT
発明の概要(英語) A magnetic force distribution on a measurement plane (91) is acquired as a magnetic force image above a sample (9) having a magnetic domain by using an MFM. Measurement is executed on a measurement plane (92) apart from the measurement plane (91) by a small distance d so as to acquire an auxiliary magnetic force image. The difference between them is divided by the small distance d so as to obtain a magnetic force gradient image. The magnetic force image and the auxiliary magnetic force image are subjected to the Fourier transform and substituted into a tertiary field acquisition expression derived from a general solution of the Laplace expression. Thus, it is possible to obtain a tertiary field indicating a magnetic force with a high accuracy. By acquiring the tertiary field, it is also possible to obtain the state of the magnetic domain on a surface (93) of a sample (9) with a high accuracy. The tertiary field acquisition method using the tertiary field acquisition expression can be applied to various fields which satisfy the Laplace expression such as a magnetic position, an electric potential, a temperature, and a gravity potential. Moreover, the tertiary field acquisition can be extended to acquisition of a higher n-dimension field.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • Kyoto University
  • 発明者(英語)
  • Kimura, Kenjiro
  • Kobayashi, Kei
  • Yamada, Hirofumi
  • Matsushige, Kazumi
  • Horiuchi, Takashi
  • Satoh, Nobuo
  • Nakai, Akifumi
国際特許分類(IPC)
指定国 AE AG AL AM AO AT AU AZ BA BB BE BF BG BH BJ BR BW BY BZ CA CF CG CH CI CM CN CO CR CU CY CZ DE DK DM DO DZ EC EE EG ES FI FR GA GB GD GE GH GM GN GQ GR GT GW HN HR HU ID IE IL IN IS IT JP KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LV LY MA MC MD ME MG MK ML MN MR MT MW MX MY MZ NA NE NG NI NL NO NZ OM PG PH PL PT RO RS RU SC SD SE SG SI SK SL SM SN SV SY SZ TD TG TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
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