著者

尾嶋 正治

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.22, no.12, 2001-12-10

著者

福井 孝志

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.31, no.1, pp.13-18, 2010-01-10 (Released:2010-01-26)

参考文献数

25

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Recent advance in semiconductor hetero-structure formation technology using crystal growth enabled us to form quantum wires and quantum dots, as well as quantum wells. Here, we review the quantum wire formation technologies which confine an electron or a hole within one-dimension, and their physical properties and device applications. We also introduce recent progresses of semiconductor nanowire fabrication by using crystal growth and their device applications.

著者

大園 拓哉 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.7, pp.374-379, 2006-07-10 (Released:2007-05-18)

参考文献数

11

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Surfaces of some compliant materials, whose surface layers are harder than the bulk, sometimes form wrinkles with a stripe pattern. The wrinkles have potential impacts on the nanotechnology because the spatial wavelength can be small as submicron scales. The microwrinkles can rearrange in response to the mechanical perturbation, e.g., compression. Here, we focus on a hysteretic behavior of the microwrinkles under a slow cycle of compression and decompression. The local stripe directions change to the compression direction one after another as compression proceeds. However, the stripe patterns upon compression are different from those upon decompression, showing hysteresis in the pattern. We propose a simple phenomenological model that resembles Ising spin models, to understand the basic mechanism of the hysteretic behavior. The model suggests that the hysteresis in the pattern can be caused by the direct coupling between elements.

著者

岡村 康史 小川 賢 浜 裕之 木村 康男 石井 久夫 庭野 道夫

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.24, no.9, pp.543-549, 2003-09-10 (Released:2008-12-10)

参考文献数

16

被引用文献数

1 1

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The adsorption of naphthalene on a Si(100)-2×1 surface at room temperature was investigated using infrared absorption spectroscopy (IRAS) in the multiple internal reflection geometry (MIR). To determine the adsorption configurations on the surface in detail, IRAS spectra in the C-H stretching vibration region were analyzed in comparison with calculations based on the density functional theory. As a result, it was found that naphthalene adsorbs on the surface in different manners depending on the surface coverage of the molecules. At low coverage, a single configuration is favored, in which the 1, 4, 6, 9 carbon atoms of a naphthalene molecule are bound to the dangling bonds of two adjacent Si dimers to form sp3 bonds. At high coverage, on the other hand, the molecules adsorb in several energetically preferred configurations. Furthermore, the effect of coupling of vibration modes between two adjacent molecules adsorbed on the surface was observed at high coverage.

著者

吉武 道子

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.28, no.7, pp.397-401, 2007-07-10 (Released:2007-07-22)

参考文献数

12

被引用文献数

3 7

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The importance of work function measurement in the field of application has greatly increased. The principle of work function measurement using electron spectroscopic methods such as UPS, XPS and AES is explained. The practical tips for measurements and analysis are advised with reasons.

著者

岩科 司

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.36, no.8, pp.430-432, 2015-08-15 (Released:2015-08-20)

参考文献数

4

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地球上には約500万~3000万種の生物が生存している。日本には植物だけでも7451種の陸上植物(5016種の被子植物,46種の裸子植物,623種のシダ植物,そして1766種のコケ植物)が生育している。しかしながら,それらの1/4は絶滅危惧植物に指定されており,その原因は大きく2つに分ける事ができる。1) 蛇紋岩地などの特殊な環境に生息し,もともとの個体数が少ない種と,2) 本来は多く生育していたが,人間によってその減少がもたらされた絶滅危惧種である。たいていの植物の減少は2)の人類による環境の破壊によってもたらされたが,一方,その修復をできるのも人類だけである。「生物の多様性とこれからの社会」はどうあるべきか,今後,我々人類が考えていかなければならない大きな命題である。

著者

佐野 陽之 水谷 五郎

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.28, no.12, pp.711-717, 2007-12-10 (Released:2007-12-16)

参考文献数

17

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We have developed optical sum frequency (SF) and second harmonic (SH) microscopy as a new surface probe. In this paper, recent three studies performed by the SF (SH) microscopy are presented. (1) The spatial distribution of electronic states of an arsenic ion implanted Si(111) substrate was observed by using a wavelength tunable SH microscope. Resonant SH images associated with Eg and E2 energy gaps were obtained at the SH photon energies of 2.33 and 4.43 eV, respectively. (2) It was demonstrated that the spatial distribution of hydrogen desorption by laser pulses from a hydrogen terminated Si surface can be observed by the SH microscope. In the case of irradiation of ultraviolet short laser pulses, the hydrogen desorption occurred above the threshold fluence of ∼40 mJ/cm2, suggesting that the hydrogen desorption probably resulted from the laser induced thermal desorption (LITD) mechanism. (3) It was demonstrated that nondestructive chemical analysis of starch granules in a water plant can be performedby using SH and SF microscopy.

著者

阿部 英樹 佐藤 晃

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.3, pp.149-153, 2013-03-10 (Released:2013-03-22)

参考文献数

7

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Japan is facing a challenge of wide-spread radioactive contamination by isotopes of cesium (Cs). Here we demonstrate that titanium oxide (TiO2) can be an efficient material to immobilize high concentrations of Cs ions in a durable solid-state framework. TiO2 was dissolved in a Cs-containing melt of molybdenum trioxide (MoO3) at 950oC. The melt was then electrolyzed at −1200mV (vs. a Pt reference electrode) to obtain a single-crystalline titanate, Cs0.169TiO2 (titanium-oxide immobilizer) , which contained 1g cm−3 of Cs. Moreover, the titanium-oxide immobilizer exhibited a 170 times lower Cs leaching rate than did Cs-containing borosilicate glass. The titanium-oxide immobilizer will contribute to the Cs decontamination because of its high Cs content and low Cs leaching.

著者

北野 宏樹

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.29, no.7, pp.427-431, 2008-07-10 (Released:2008-07-18)

参考文献数

8

被引用文献数

1 2

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The hair has a complicated hierarchical structure which is composed of hydrophobic and hydrophilic components. Study of the mechanical properties of each components is important in order to understand the structure of the hair microscopically and to develop hair care products. The objects of this study are to evaluate the mechanical properties and fine structures of human hair at the same point and under the natural environment by taking the advantages of Atomic Force Microscopy (AFM). The force-curve method using stiff cantilevers in order to deform a sample by AFM enable us to evaluate Young's modulus and a fine structure simultaneously at the same point. In this study, we applied this method also to the cross section of the hair in order to evaluate the degree of hair damage. In an application we found that the Young's modulus was improved when the damaged hair was treated by L-theanine solution and that especially Young's modulus of macrofibril was recovered. This method is thus very useful to appraise the effectiveness of hair care components.

著者

植田 暁子

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.33, no.4, pp.247-248, 2012-04-10 (Released:2012-04-22)

参考文献数

2

著者

太田 健一郎 石原 顕光

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.10, pp.586-591, 2008-10-10 (Released:2008-10-22)

参考文献数

28

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In order to commercialize polymer electrolyte fuel cells widely, the development of a non-Pt catalyst for oxygen reduction reaction is essentially required. In this paper, the necessity of non-Pt catalysts for low temperature fuel cells and our new trials using group 4 and 5 metal compounds are explained.

著者

制野 かおり

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.4, pp.197-198, 2017-04-10 (Released:2017-04-22)

参考文献数

1

著者

田畑 仁 堀田 育志 土井 淳裕 川合 知二

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.4, pp.200-207, 2005-04-10 (Released:2007-12-21)

参考文献数

15

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Relaxor type ferroelectrics are treasure boxes both for basic physics and practical applications. Among them, Ba(Zr, Ti)O3 is one of the candidate materials for elucidating the mechanism of relaxor phenomena. It has homo-valent B-site ions of Zr4+ and Ti4+. Therefore, there is no driving force to push the ions into ordered structure. On the other hand, it has a possibility of co-existence of multi phases (so-called pinching effect). In case of the bulk state, we have found that the relaxor behavior is strongly affected by the annealing conditions. To make clear the intrinsic parameter for the relaxor, we have demonstrated the artificial control of the positioning of the B-site ions by the superlattice technique. The stacking periodicity and the compositional combination of BaTiO3 and BaZrO3 are changed systematically with this method and the sign of the relaxor is detected.

著者

秋久保 一馬 山本 達 湯川 龍 ダンジェロ マリー 松田 巌

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.34, 2014

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SrTiO3(STO)は3.2eVの大きさのバンドギャップを持つ遷移金属酸化物半導体である。2次元電子ガスや超伝導など様々な物性が現れ、また金属/STO界面は光触媒などの実用的な観点からも詳細な研究が進められている。本研究では、X線光電子分光を用いて金属/STO界面の電子状態を調べた。金属吸着前後でバンド曲がりの様子が変化した。バンド構造の変化のメカニズムについて述べる。

著者

眞銅 雅子 杉岡 優 内山 真伸 首藤 健一

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.35, 2015

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 カルボランはその超芳香族性によって種々の誘導体が存在する有望な機能性材料の一つである。本研究は、チオール置換したデカメチル-p-カルボランチオール(dmpct)がAu(111)表面上に自己組織化単分子膜(SAM)を形成する際、ポテンシャル曲線に沿って拡散する過程を第一原理計算コードVASPを用いて計算し、安定構造を明らかにした。

著者

松林 宏明 高岸 洋一 本同 宏成 久保 貴資 中田 俊隆

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

巻号頁・発行日

vol.27, pp.197-197, 2007

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原子間力顕微鏡(AFM)を用いて、アルコール異性体の構造力測定を行った。そこから、液体構造の相転移のメカニズムを探った。<BR>マイカ/液体アルコール系の固液界面の液体構造は、その温度によって変化する。しかしその転移メカニズムはまだわかっていない。そこで我々はAFMを用いてアルコール異性体の構造力を測定し、アルコール分子の構成要素、炭素鎖(疎水性)と水酸基(親水性)がそれぞれがどのように転移に影響を及ぼすか、考察した。

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

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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

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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.