著者

野村 健太郎

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.37, no.12, pp.625-630, 2016-12-10 (Released:2016-12-23)

参考文献数

38

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Recent developments in the research field of Dirac and Weyl semimetals are reviewed. We introduce Weyl semimetal which has linear energy dispersion and nontrivial topology in the band structure. One of characteristic phenomena is negative magnetoresistance, which stems from three-dimensional linear dispersion. Another characteristic phenomenon is the anomalous Hall effect which occurs in Weyl semimetals with magnetic order. Fermi arc states appear as surface states localized at the boundary. Type II Weyl semimetals are also argued.

著者

立間 徹

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.29, no.6, pp.350-355, 2008-06-10 (Released:2008-06-22)

参考文献数

27

被引用文献数

1 2

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Photoinduced charge separation is possible at interfaces between Au or Ag nanoparticles and TiO2. The charge separation is based on localized surface plasmon resonance of the metal nanoparticles. The Au-TiO2 system can be applied to visible light-responsive photocatalysts and photovoltaic cells. If Ag is used instead of Au, visible light-induced oxidation and UV light-induced re-reduction of Ag nanoparticles are possible. These new photoelectrochemical processes can be applied to multicolor photochromism and photoelectrochemical actuators based on hydrogels.

著者

土屋 範晃 荻野 俊郎

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.26, no.9, pp.518-523, 2005-09-10 (Released:2008-04-08)

参考文献数

12

被引用文献数

1

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We have investigated selective growth of carbon nanotubes, such as single-walled nanotubes (SWNTs), multi-walled nanotubes (MWNTs) and carbon nanocoils, using alcohol CVD through a combination of the metal catalysts and growth temperature. In the case of Fe and Co catalysts, SWNTs were grown at 900oC, and MWNTs at 700oC. Using a Ni catalyst, on the other hand, carbon nanocoils with a variety of helical structures were grown at 900oC. We believe that these findings will contribute to progress in the applications of carbon nanotubes to electronic devices.

著者

谷藤 幹子

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.37, no.6, pp.263-267, 2016-06-10 (Released:2016-06-21)

参考文献数

7

被引用文献数

1

---

In respond to a trend of open science policy in Japan, authors' copyrights in journal articles under a background of open access in science and technology is reported.

著者

井上 滋登

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.32, no.5, pp.287-293, 2011-05-10 (Released:2011-05-21)

参考文献数

20

被引用文献数

1

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18-Methyleicosanoic acid (18-MEA) is an unusual branched-chain fatty acid that is covalently bounded, possibly via a thioesteroresterlinkage, to the cuticle surface of hairfiber s. It is also known that the lipid layermakes the hairsur face hydrophobic and acts as a boundary lubricant to decrease friction resistance. 18-MEA can be easily removed; however, underalkaline conditions such as in the presence of hairbleach orper manent waving, the hairsur face becomes hydrophilic and the friction increases. The absence of 18-MEA may influence the sensory perception of hair, making it feel dried or hard to finger/comb through. We also found that exposure to ultraviolet (UV) radiation affects 18-MEA on hair surface using Time of Flight Secondary Ion Mass Spectrometry (TOF-SIMS). We therefore think it is important to study the damage to boundary lipids caused by the external stimuli in daily life. A technology for the deposition of a persistent hydrophobicity to bleached hair surfaces using 18-MEA is reviewed. It was found that the combination of 18-MEA with specific cationic surfactants system makes the bleached hair surface hydrophobic, and its hydrophobicity is maintained even after shampooing. Characterization of adsorbed layers on a mica surface was performed using Atomic Force Microscopy (AFM). The results revealed that system formed an uniform layer with high wear resistance.

著者

小林 一昭

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.28, no.3, pp.129-134, 2007-03-10 (Released:2007-04-23)

参考文献数

40

被引用文献数

3

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In this review, we present some relationships between first-principles electronic structure calculations and experiments. Actually, many theoretical and experimental researchers feel an invisible barrier to each other. The purpose of this review is to enhance the understanding each other. We take some examples of the electronic structure calculations and related experiments and discuss this problem.

著者

水谷 加奈子 張 暁賓 マレク シュミット ムルガナタン マノハラン 水田 博 大島 義文

出版者

公益社団法人 日本表面科学会

雑誌

表面科学学術講演会要旨集

巻号頁・発行日

vol.36, 2016

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グラフェンは特異な電気特性を持っているため、発見されてからたくさんの注目を集めている。本研究では、収差補正透過型電子顕微鏡を用いてグラフェンの電気伝導特性と構造の関係を調べるために、サスペンデッドグラフェンナノリボンを幅数十ナノメートルのナノギャップに担持し、伝導測定と構造観察を同時にできるような試料台を開発した。

著者

横山 毅人 田仲 由喜夫

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.32, no.4, pp.202-208, 2011-04-10 (Released:2011-04-19)

参考文献数

50

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We study charge transport on the surface state of topological insulator where two-dimensional Dirac electron is generated. We put ferromagnetic insulator or superconductor on the topological insulator and reveal anomalous charge transport on the surface. We first consider the charge transport through a ferromagnetic insulator/ferromagnetic insulator (FI/FI) junction on a topological insulator. The resulting conductance across the interface depends sensitively on the directions of the magnetizations of the two FI, showing anomalous behaviors compared with the conventional spin valve. It is found that the conductance depends strongly on the in-plane direction of the magnetization. Moreover, in sharp contrast to the conventional magnetoresistance effect, the conductance at the parallel configuration can be much smaller than that at the antiparallel configuration. We also study the transport properties of a normal metal (N)/FI/superconductor (S) junction formed on the surface of a three-dimensional topological insulator, where chiral Majorana edge mode exists at the FI/S interface. We find that the chiral Majorana edge mode generated in N/FI/S junction strongly influences the charge conductance.

著者

山口 義彰 河上 貴聡

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.34, no.6, pp.290-295, 2013-06-10 (Released:2013-06-22)

参考文献数

10

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An Electrochemical Atomic Force Microscope (EC-AFM) was used to observe the surface reaction of lead electrode in sulfuric acid electrolyte, when the reaction corresponding to what occurs at the electrode of a lead-acid battery takes place. At first, the morphology change at the surface of the lead electrode during Cyclic-Voltammetry measurement could be observed by using EC-AFM. After that, behavior of PbSO4 crystals during open-circuit standing after oxidation was observed by in-situ EC-AFM, and the degradation of charge acceptance performance of lead-acid batteries during open-circuit standing after discharge could be explained by this observation result. In this paper, we introduce some technique with using EC-AFM for understanding of the electrochemical reaction at solid/liquid interface in the lead-acid battery.

著者

岸 啓 木下 健太郎 中原 子竜 奥谷 匠 田中 隼人 岸田 悟

出版者

公益社団法人 日本表面科学会

雑誌

表面科学学術講演会要旨集

巻号頁・発行日

vol.30, pp.269-269, 2010

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rfスパッタ, オフアクシズ, GaドープZnO(GZO), 低温成膜, プラスチック基板

著者

堀切川 一男 山口 健

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.26, no.12, pp.762-765, 2005-12-10 (Released:2007-08-09)

参考文献数

6

被引用文献数

1

---

It was found that the key points of time reduction of bobsleigh were to reduce friction resistance between the runner and ice, and to improve the start technique, from the results of bobsleigh's dynamic analysis. Then, the authors designed and manufactured a new bobsleigh runner based on elastic-plastic contact analysis, which realized minimum contact area between the runner and ice within the shape that prevents ploughing term in friction force. The developed bobsleigh runner based on the analysis was named as “Nagano Special”. Additionally, the authors suggested a new start technique called “Keri-Nori”, which was quite different from the conventional start technique of the Japanese bobsleigh team, and verified its benefit. By using the newly developed bobsleigh runner “Nagano Special” and the new start technique “Keri-Nori”, the Japanese bobsleigh team took the 4th place among the world 44 teams in the international official tryout held on February 1998 just before Nagano Olympic Games.

著者

岩井 洋 角嶋 邦之 川那子 高暢

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.33, no.11, pp.600-609, 2012-11-10 (Released:2012-11-20)

参考文献数

48

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MOSFET is a key component for integrated circuits which controls and helps the human activities in modern society. The demands for high performance and low power MOSFETs become stronger and stronger with the progress of smart society. Gate stack is the most critical element of the MOSFETs which controls its operation. In this report, after the explanation of the overall basics of the gate stack technology, recent status of the gate stack R & D are reviewed, focusing on that for high-k/metal gate stack.

著者

佐久間 怜

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.29, no.4, pp.264-268, 2008-04-10 (Released:2008-04-20)

参考文献数

20

被引用文献数

2 2

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The electronic structures of many materials can be well described by the one-particle picture within the band theory. A quantitative evaluation of band gaps in semiconductors and insulators, however, needs special care because the subtle balance between the exchange and correlation effects must be properly taken into account. This article reviews theoretical approaches for calculating band gaps of materials based on 1) many-body perturbation theory, 2) density-functional theory, and 3) wavefunction-based theory, and the advantages and of each theory disadvantages are discussed.

著者

荻野 俊郎

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.38, no.1, pp.1-2, 2017-01-10 (Released:2017-01-23)

著者

田中 慎一郎 間瀬 一彦

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.23, no.12, pp.753-758, 2002-12-10 (Released:2008-10-09)

参考文献数

18

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The core-level-excitation-induced ion desorption from surface is investigated. Two studies using electron-ion coincidence spectroscopy are shown. On Si(100)/H2O surface, it is shown that ion desorption is mainly induced by the shake-up/off excitation accompanying the Auger decay when the photon energy is near the O1s threshold. At a photon energy higher than the shake-up threshold, most of ions desorb resulting from the shake-up excitation accompanying the core-excitation. In both cases, the desorption is induced by the multi-hole final state. On ice surface, the kinetic energy of O1s photoelectrons gives the highest coincidence yield of H+ desorption is shifted by about −0.7 eV compared to the O1s peak observed in the conventional core-level photoelectron spectroscopy. It is ascribed to a core-level shift in the O1s level from which hydrogen ions desorb.

著者

青木 秀夫

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.32, no.4, pp.173-173, 2011-04-10 (Released:2011-04-19)

被引用文献数

1 1

著者

野本 豊和 八木 伸也 アーリップ クトゥルク 曽田 一雄 橋本 英二 谷口 雅樹

出版者

公益社団法人 日本表面科学会

雑誌

表面科学講演大会講演要旨集 第25回表面科学講演大会

巻号頁・発行日

pp.118, 2005 (Released:2005-11-14)

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Ar+スパッタ後、分子を吸着させる前の金属基板加熱温度を制御し、表面粗さを変化させた。任意の加熱温度での表面粗さを原子間力顕微鏡 (AFM)で測定し、90 Kにおける(CH3)2Sの吸着反応及び構造をX線光電子分光(XPS)及び吸収端近傍X線吸収微細構造(NEXAFS)を用いて調べたところ、吸着種及び構造に基板表面粗さに依存した変化が得られた。

著者

林 和弘

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.37, no.6, pp.258-262, 2016-06-10 (Released:2016-06-21)

参考文献数

24

被引用文献数

1 1

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Author introduces a vision and current issues of Open Access and Open Science with some backgrounds. Both are hot policy issues all over the world and getting recognized among researchers gradually. Towards new paradigm and a platform for next generation of scientific research activities and publishing systems, learned societies and its members, with other various stakeholders, should reframe their strategy with redefining of their mission.

著者

谷藤 幹子

出版者

公益社団法人 日本表面科学会

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.37, no.6, pp.263-267, 2016

---

In respond to a trend of open science policy in Japan, authors' copyrights in journal articles under a background of open access in science and technology is reported.

著者

吉武 道子 ネムシャク スラボミール スカラ トーマス ツッド ナタリア ハニス ペーター マトリン ウラジミール プリンス ケビン

出版者

公益社団法人 日本表面科学会

雑誌

表面科学学術講演会要旨集

巻号頁・発行日

vol.29, pp.190-190, 2009

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金属-酸化物界面におけるバンドオフセット(金属のフェルミレベルと酸化物の価電子帯あるいは伝導帯とのエネルギー差)は、金属と酸化物の種類のみならず、その界面を終端する元素の種類に依存すると第一原理計算で予測されている。我々は、銅-アルミナ、ニッケル-アルミナ界面において、実験的に界面終端元素の種類を変えて、そのバンドオフセットを光電子分光法により計測した。その結果を第一原理計算と比較して考察する。