| Presentation | 2012-02-08 Electrical characteristics of MgF_2/Fe/MgF_2 thin films Takuma ISHIKAWA, Eita SATO, Kouichi HAMADA, Masashi ARITA, Yasuo TAKAHASHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | On carefully prepared SiO_2/Si substrates, MgF_2/Fe-nanodots/MgF_2 granular films were prepared, and fundamental electric properties were measured. The conduction type of the films was tunneling when the Fe thickness was less than ca. 5 nm (the percolation thickness). The size of Fe-nanodot was roughly estimated as 3-5 nm. Tunneling magnetoresistance (TMR) ratios of 8.6% (@RT) and 15.0% (@4.6K) were realized in the sample having thickness of about 2 nm. The TMR ratio was increased by increasing the bias voltage, and it decreased by further increment of voltage. Though the details are obscure, influence by single electron conduction is expected. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Tunneling magnetoresistance / Nanodot / Ferromagnetics |
| Paper # | ED2011-152,SDM2011-169 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2012/1/31(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Electrical characteristics of MgF_2/Fe/MgF_2 thin films |
| Sub Title (in English) | |
| Keyword(1) | Tunneling magnetoresistance |
| Keyword(2) | Nanodot |
| Keyword(3) | Ferromagnetics |
| 1st Author's Name | Takuma ISHIKAWA |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Eita SATO |
| 2nd Author's Affiliation | School of Engineering Hokkaido University |
| 3rd Author's Name | Kouichi HAMADA |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 4th Author's Name | Masashi ARITA |
| 4th Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 5th Author's Name | Yasuo TAKAHASHI |
| 5th Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2012-02-08 |
| Paper # | ED2011-152,SDM2011-169 |
| Volume (vol) | vol.111 |
| Number (no) | 425 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |