| Presentation | 2016-08-09 Analysis of local magnetic field obtained by probe-sample distance modulation in STM-SQUID microscope Yuji Miyato, Tsutau Yokocho, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have developed an STM-SQUID microscope, in which a scanning tunneling microscope (STM) is combined with a high-Tc rf-SQUID. The probe having high permeability plays important roles of the STM probe and the flux guide so that magnetic and topographic images can be obtained simultaneously. The probe makes the magnetic flux transferred from the sample to the SQUID via not only the probe tip near the sample surface, but also the position far from the sample. Therefore, the magnetic image taken by the normal method is significantly influenced by the magnetic field distribution above the sample. In this study, distance-modulation was carried out for extraction of the local magnetic field of the sample surface. Then, we analyzed the magnetic images obtained by the distance modulation from the simulation and experiment. It showed that the distance-modulated magnetic image could be very similar to the actual distribution of the sample surface due to cancellation of the background magnetic field and reduction of the SQUID noise. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | rf-SQUID / SQUID microscopy / magnetic microscopy / distance modulation |
| Paper # | SCE2016-25 |
| Date of Issue | 2016-08-01 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2016/8/8(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Saitama Univ. (Omiya sonic city) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Nobuyuki Yoshikawa(Yokohama National Univ.) |
| Vice Chair | |
| Secretary | (National Defense Academy) |
| Assistant | Hiroyuki Akaike(Nagoya Univ.) / Yuki Yamanashi(Yokohama National Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of local magnetic field obtained by probe-sample distance modulation in STM-SQUID microscope |
| Sub Title (in English) | |
| Keyword(1) | rf-SQUID |
| Keyword(2) | SQUID microscopy |
| Keyword(3) | magnetic microscopy |
| Keyword(4) | distance modulation |
| 1st Author's Name | Yuji Miyato |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Tsutau Yokocho |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2016-08-09 |
| Paper # | SCE2016-25 |
| Volume (vol) | vol.116 |
| Number (no) | SCE-175 |
| Page | pp.pp.69-73(SCE), |
| #Pages | 5 |
| Date of Issue | 2016-08-01 (SCE) |