著者

栃原 浩

出版者

The Surface Science Society of Japan

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.8, no.4, pp.236-247, 1987-08-01 (Released:2009-11-11)

参考文献数

24

被引用文献数

1 1

---

Metastable deexcitation spectroscopy (MDS) is one of the most powerful techniques for studying electronic properties of the outermost layers of solid surfaces. Metastable atoms of rare gases impinge on solid surfaces and electrons are emitted as a result of electronic energy transfer. The principles of MDS applied to solid surfaces are described. Two mechanisms of deexcitation of metastable atoms are discussed in the cases of clean alkali and transition metal surfaces. The effects of adsorption of gases such as O and CO are also shown. Several applications of MDS are described for evaluation of new surface materials.

著者

板垣 昌幸

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.2, pp.64-68, 2012-02-10 (Released:2012-02-21)

参考文献数

5

被引用文献数

6

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Impedance spectroscopy has been used to investigate various electrochemical devices and electrode reactions. The principle of impedance spectroscopy is explained in this article. The relationships between simple circuits and the impedance spectra are revealed using Nyquist and bode plots. Impedance spectra of an electrode/electrolyte interface are obtained as a semicircle on the Nyquist plot. The equivalent circuit for this interface involves the charge transfer resistance and the interfacial capacitance in parallel, and comparison of this circuit with the impedance spectra provides the structural and physical information concerning the interface.

著者

中田 武志 楊 菲 吉田 晃人 立間 徹 玉田 薫

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.11, pp.727-732, 2011-11-10 (Released:2011-11-15)

参考文献数

12

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Remote photocatalytic reaction of a Pt-modified TiO2 thin film was investigated by using Ag nanosheet as a marker. The Ag nanosheet is a two-dimensional crystalline film composed of myristate-capped silver nanoparticles (d = 5 nm), which has a strong localized plasmon absorption band at λmax = 470 nm. The Ag nanosheet on a 50 nm gold film was set on a measurement cell at 10 μm distance from the Pt-modified TiO2 film. Then the refractive index change of Ag nanosheet was real-time monitored by a surface plasmon resonance (SPR) technique under UV light irradiation (wavelength: 365 nm) from the back side of the TiO2 film. The plasmon resonance angle shifted to lower angle in consequence of the degradation of Ag nanosheet due to the remote photocatalytic reaction. We found the reaction was continued even after stopping UV irradiation, i.e., a chain reaction in Ag nanosheet was suggested. The chain reaction was influenced by N2 gas purge as well as the ligand exchange of myristate capping molecules to alkyl thiolate.

著者

田中 雅明

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.3, pp.120-127, 2011-03-10 (Released:2011-03-23)

参考文献数

80

被引用文献数

1 1

---

By introducing spin degrees of freedom in materials and devices, we can create new functionalities. This article overviews the studies on the control of spins (creation, injection, accumulation, relaxation, transport, and detection) and relations of spin-related properties with magnetic, electrical, optical, and thermal properties. Developments of semiconductor-based materials with spin-related functions are reviewed. Future issues and prospects for device applications are also described.

著者

平野 元久

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.24, no.6, pp.334-339, 2003-06-10 (Released:2009-02-22)

参考文献数

8

被引用文献数

1

---

Superlubricity, a phenomena of vanishing friction, has been studied theoretically and experimentally. It is theoretically shown that certain unique cases exist where friction force exactly vanishes when the atomic arrangements on the contacting surfaces satisfies the condition for the appearance of superlubricity. The experiments agree with the theoretical predictions. The measurements on atomically clean surfaces show that friction forces decrease as the contacting conditions approach those for the appearance of superlubricity. Friction is not observed in the superlubricity regime in the measurements capable of resolving a friction force of 3 nN by scanning tunneling microscopy.

著者

中村 守

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.35, no.4, pp.221-222, 2014-04-10 (Released:2014-04-22)

参考文献数

1

被引用文献数

1

---

希少資源の需給に係わる世界の現状について説明するとともに,最大の資源需要を作り出している自動車産業において今後必要とされる希少資源について述べた。また,希少資源対策に適用される表面処理技術としての表面コーティング技術についても触れた。最後に,産総研における希少資源対策についての研究分野横断的取り組みや,希少資源代替・省使用材料技術の開発についての取り組みも紹介した。

著者

奥山 雅則

出版者

The Surface Science Society of Japan

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.17, no.11, pp.648-653, 1996

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D-Eヒステリシス,大きい誘電率,顕著な圧電効果,焦電効果,電気光学効果を有する強誘電体の薄膜化法を概説するとともに,DRAM,不揮発性メモリ素子,低駆動電圧薄膜EL素子,Siモノリシック超音波センサ,焦電形赤外線FET,赤外線撮像素子,光変調素子,光スウィッチ,光偏向素子,マイクロモータ,光駆動マイクロカンチレバーなどの薄膜を用いた機能性電子デバイスの例について紹介する。

著者

龍崎 奏

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.8, pp.473-474, 2012-08-10 (Released:2012-08-23)

著者

山本 貞明 田中 賢 角南 寛 新井 景子 高山 あい子 山下 慈京子 森田 有香 下村 政嗣

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.27, no.9, pp.502-510, 2006-09-10 (Released:2007-06-15)

参考文献数

59

被引用文献数

1 1

---

Patterned surface topographies play vital roles in cellular response such as adhesion, proliferation, and differentiation. Here, we characterized adsorption of fibronectin (Fn) as a typical cell adhesion protein onto honeycomb-patterned porous films (“honeycomb film”) of poly (ε-caprolactone) (PCL) incubated in a Fn phosphate-buffered saline (PBS) solution by using atomic force microscopy (AFM) and confocal laser scanning microscopy (CLSM). In order to determine how cells respond to a honeycomb film, focal adhesion of porcine aortic endothelial cells (PAECs) cultured on the Fn coated honeycomb films in a serum free medium were characterized by using immunofluorescencet labeling of vinculin and focal adhesion kinase autophosphorylated at the tyrosine residue 397 (pY 397 FAK). Fn adsorbed around the pore periphery of a honeycomb film to form fibriller aggregates in a ring-shape structure. The sites of pY 397 FAK and vinculin were overlapped and agreed well with the adsorption site of Fn fibrils. This demonstrated that PAECs adhered onto the honeycomb films at focal contact points localized around pore periphery. The expression of pY397FAK determined by an immunoprecipitation method was 3 times higher than that on a PCL flat film as a reference. These results imply that the signaling mediated by a integrin receptor-Fn binding were activated on honeycomb films and this type of signaling was activated effectively on a honeycomb film compared with on a flat film. The cell response to honeycomb films (adhesion pattern and phosphorilation of FAK) was supposed to originate from the regularly arraigned adsorption pattern of Fn determined by the pore structure of the film.

著者

中村 雅一 佐久間 広貴 酒井 正俊 飯塚 正明 工藤 一浩

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.24, no.2, pp.77-82, 2003-02-10 (Released:2009-01-27)

参考文献数

15

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This article presents the concept and some fundamental research on ‘self-assembled’ nanoscale transistors using charge transfer (CT) complexes. First, TTF-TCNQ CT complex wires of organic metals having high conductivity, are formed by applying electric field during vacuum deposition. Then, a self-aligned active part is formed in the gap between a pair of grown wires. The semiconductive part spontaneously formed at the point of wire contact can be used as an active part; besides, we can employ the metal-semiconductor (metal-insulator) phase transition devices consisting of CT complex bilayers of which electronic structure is modulated by external electric field. On the CT complex wires and CT complex bilayer transistors, some experimental results are presented.

著者

新庄 輝也 中山 則昭

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.21, no.6, pp.332-339, 2000 (Released:2007-04-06)

参考文献数

25

---

Recent developments of the research on metallic multi-layers, relating to epitaxy and lattice distortion, are briefly surveyed. Main topics are structural analysis using X-ray diffraction, superstructures with monolayers, ultrathin films with unstable crystal phase fabricated utilizing epitaxy, and progresses in supermodulus effect study.

著者

Takaaki KAWAMURA

出版者

The Surface Science Society of Japan

雑誌

Hyomen Kagaku (ISSN:03885321)

巻号頁・発行日

vol.18, no.9, pp.570-575, 1997-09-10 (Released:2009-08-07)

参考文献数

14

被引用文献数

1 1

---

RHEED and its intensity oscillation are widely used for monitoring and controlling the growth by molecular beam epitaxy (MBE). We have discussed that the intensity oscillation is related to either the interference effect between two consecutive layers, surface step density or atomic density on a surface, depending on the diffraction conditions, i.e. the incident energy and the angle. We have also shown a result of multiple scattering calculation from large super-cells obtained by a MBE growth simulation, which should be important for more quantitative analysis of the intensity oscillation.

著者

高見 知秀

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.25, no.6, pp.363-369, 2004-06-10 (Released:2008-05-02)

参考文献数

30

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Analyses and assignments of reflection high-energy electron diffraction patterns of Si(100) surfaces are demonstrated for the practice. Several check points for the RHEED analysis are described.

著者

岡 博文

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.9, pp.481-482, 2017-09-10 (Released:2017-09-20)

参考文献数

1

著者

薄井 洋行 成田 匡邦 藤田 佳宏 坂口 裕樹

出版者

The Surface Science Society of Japan

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.36, no.7, pp.334-338, 2015

被引用文献数

1

---

We prepared Ni-P-coated Si particles by an electroless deposition method as an anode material of a high-performance Li-ion battery, and optimized the interface between electrode and electrolyte by using an ionic liquid electrolyte. For the improvement of an adhesion between Ni-P and Si, we carried out a surface roughening of uncoated Si by a chemical etching, and then a thermal treatment of Ni-P-coated Si particles. Galvanostatic charge-discharge tests were performed for Ni-P-coated Si composite electrodes prepared by a gas-deposition method using the resulting particles. The results showed that an enhanced anode performance was obtained for the electrode of annealed Ni-P/(etched Si) in a conventional organic electrolyte due to the improved adhesion. In addition, the electrode exhibited a significantly stable cyclability in the ionic liquid electrolyte: a high discharge capacity of 1000 mAhg^-1 was maintained with no capacity fading for 1100 cycles.

著者

瀬筒 秀樹

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.3, pp.135-137, 2017-03-10 (Released:2017-03-24)

参考文献数

7

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カイコ(蚕)がつむぐシルク(絹)は,古来より衣服の材料として人間に利用されてきた。シルクは,肌に優しく,低CO2排出量の天然タンパク質長繊維として見直されつつある素材である。カイコを育てて繭からシルクをとる「養蚕」は,明治時代以降の日本の主要な外貨獲得産業となり,日本の近代化を支えた。しかし,世界恐慌や代替品の化学繊維の登場,さらに国際価格競争の激化や農家の高齢化により,日本の養蚕業は深刻な存亡の危機に立たされている。そこで近年,日本に蓄積された高度な養蚕技術と,遺伝子組換え等の新たなバイオテクノロジー技術を組み合わせることで,従来の養蚕業を新たな産業(新蚕業)に転換する試みが進められている。その象徴が,「ひかるシルク」である。ひかるタンパク質=蛍光タンパク質をシルクに組み込んで,ひかるシルクをつくる技術は,これまでにないシルクと新素材をつくり出すことができるだけでなく,カイコを医薬品の製造工場として利用可能にする技術であり,「蚕業革命」を起こしうる技術である。表面科学やナノテクノロジーの研究は,今後のシルク新素材・新デバイスや新利用法の開発において,非常に重要な役割を果たしていくことが期待される。

著者

桜井 健次 蒋 金星

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.9, pp.448-454, 2017-09-10 (Released:2017-09-20)

参考文献数

18

被引用文献数

2

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Exotic functions of thin films are quite often connected to the unique atomic and molecular features of buried layers and interfaces. In reality, the structures are far from uniform, but seeing such inhomogeneity is extremely difficult. The present research concerns how to solve the difficulty. The novel technique developed is the X-ray reflectivity imaging. While ordinary X-ray reflectivity gives very precise information on the electron density profile along the depth in thin films, the method can have some imaging capability, by combining with the image reconstruction scheme. Some practical applications will be reported.

著者

鳥海 明

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.5, pp.242-248, 2005-05-10 (Released:2007-12-19)

参考文献数

28

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This paper briefly reviews challenges and prospects for high-κ gate dielectric technology, mainly focusing on the fundamental material properties. First, we need to understand the origin of high dielectric constant of those materials, and then we can consider some material engineering such as the dielectric constant improvement as well as overcome drawbacks such as the fragile reliability, on the basis of mechanisms giving rise to the high dielectric constant. From the device performance point of view, the mobility and threshold voltage controls are necessarily required for employing high-κ materials in actual ULSIs. It is also discussed that the gate electrode selection is very important as well as the high-κ gate dielectrics in terms of the Fermi level pinning. Finally, it is emphasized that the material scalability applicable for a couple of technology nodes should be taken into account for the material selection.

著者

福村 知昭 長谷川 哲也

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.4, pp.233-238, 2002-04-10 (Released:2008-10-03)

参考文献数

25

被引用文献数

1

---

The existence of magnetic domain has been known for a long time, and its importance is further growing because of rapid storage density increase of recording media. Magnetic domain observations made it possible to derive the microscopic magnetic parameters such as the magnetic anisotropy and the domain wall energy connected with exchange interaction in addition to the size of magnetic domain. Among the various methods for observing the magnetic domain, scanning probe microscopes are powerful tools owing to the user-friendliness and the flexibility to sample specimen and measurement environment. These instruments enable us to evaluate three dimensional magnetic domain structure and to explore novel magnetic materials in a high throughput way. Here, we show the results obtained from the measurements of ferromagnetic semiconductors, Mn doped GaAs and Co doped TiO2 thin films, and a colossal magnetoresistive material, La1−xSrxMnO3 composition-spread film.

著者

木口 学 小西 達也 三浦 進一 村越 敬

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.7, pp.421-427, 2005-07-10 (Released:2007-09-13)

参考文献数

24

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Gold nano wires were mechanically fabricated in solution to study their quantized conductance behavior under the electrochemical potential control. A nano wire 1 nm in length showing a unit value of the quantized conductance (G0 = 2e2/h) was fabricated in solution at room temperature by choosing appropriate electrochemical potential and electrolyte. As well as a unit value, several fractional values also appeared at the quantization. Intensity of the fractional conductance peak at 0.6 G0 in the histogram increased as the electrochemical potential of the wire became negative. Conductance trace proves that the fractional peak in the histogram is due to reversible conductance fluctuation between a unit (1 G0) and the fractional value (0.6 G0). These experimental results strongly suggest the formation of a gold mono-atomic wire showing reversible phase transition between a dimerized state and an equal spacing state. Possibility regarding the mono-atomic wire as a predecessor for Pierls transition in 1 D metal system was discussed.