2016 Fiscal Year Final Research Report
Effect of magnetic atom/molecule and Rashba splitting on surface electrical conduction
| Project/Area Number |
15K21112
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 超薄膜 / 表面電子状態 / 電気伝導 / 角度分解光電子分光 |
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| Outline of Final Research Achievements |
We have investigated the effect of atom/molecule adsorption on electrical conduction of metallic ultrathin films by a four-point probe applicable to in-situ measurement under ultrahigh vacuum condition and temperature-dependent measurement in a wide range of 9-350 K. The adsorption of iron-phthalocyanine (FePc) on a double-atomic-layer indium film led to not only the increase of sheet resistivity but also the decrease of temperature coefficient. Because we observed little change in Fermi surface mapping by angle-resolved photoelectron spectroscopy, our results indicate FePc-induced modulation of electron-phonon coupling in the indium ultrathin film. We also studied the effect of adsorption of transition metal atoms (Ni and Co) on a lead monolayer with large Rashba spin splitting in metallic states. While residual resistivity was increased by the adsorption, the Kondo effect was not observed in the measured temperature range of 9-80 K.
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| Free Research Field |
表面科学
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