Magnetic domain expansion readout for amplification of an ultra high density magneto-optical recording signal

• Hiroyuki Awano

  Engineering Research Laboratory, Hitachi Maxell Ltd., Ibaraki 305-24, Japan

• Satoru Ohnuki

  Engineering Research Laboratory, Hitachi Maxell Ltd., Ibaraki 305-24, Japan

• Hiroshi Shirai

  Engineering Research Laboratory, Hitachi Maxell Ltd., Ibaraki 305-24, Japan

• Norio Ohta

  Engineering Research Laboratory, Hitachi Maxell Ltd., Ibaraki 305-24, Japan

• Atushi Yamaguchi

  Hypermedia Research Center, Sanyo Electric Co., Ltd., Gifu, Japan

• Satoshi Sumi

  Hypermedia Research Center, Sanyo Electric Co., Ltd., Gifu, Japan

• Kenji Torazawa

  Hypermedia Research Center, Sanyo Electric Co., Ltd., Gifu, Japan

抄録

An amplified magneto-optical signal readout by using a dynamic domain expansion effect has been proposed and experimentally confirmed. Small domains of around 0.3 μm in diameter were expanded by a pulsed external field on the readout layer copied from the recording layer. An amplified readout signal up to three times larger than that of the original one has been achieved.

収録刊行物

• Applied Physics Letters

  Applied Physics Letters 69 (27), 4257-4259, 1996-12-30

  AIP Publishing

キーワード

• Physics and Astronomy (miscellaneous)

詳細情報

• CRID: 1363670319579762304
• NII論文ID: 30015766996
• NII書誌ID: AA00693547
• DOI: 10.1063/1.116963
• ISSN: 10773118
• ISSN: 00036951
• Web Site: https://pubs.aip.org/aip/apl/article-pdf/69/27/4257/18523950/4257_1_online.pdf
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