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Search Results:　 1-20 of 6196

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1

Accuracy of reaction rates in the accelerator-driven system with 14MeV neutrons at the Kyoto University Critical Assembly

Pyeon Cheol Ho , Takemoto Yuki , Yagi Takahiro , Lim Jae-Yong , Takahashi Yoshiyuki , Misawa Tsuyoshi

… Thus a remarkable improvement is observed in the accuracy of experimental and numerical reaction rates, demonstrating the importance of material impurity for subcritical experiments. …

Annals of Nuclear Energy 40(1), 229-236, 2012-02

IR CrossRef
2

Charge-parity symmetry observed through Friedel oscillations in chiral charge-density waves

Ishioka J. , Fujii T. , Katono K. , Ichimura K. , Kurosawa T. , Oda M. , Tanda S.

… Surprisingly, the existence of FOs with the opposite chirality to the underlying CDWs suggests that the excess electron induced by impurity reduces the local helicity of CDWs without CDW breaking. …

Physical Review B 84(24), 245125, 2011-12-15

IR CrossRef
3

Investigation of the yield process by deformation luminescence of X-ray irradiated KCl:Ca2+

Nakamura Shoichi , Ida K. , Ohgaku Tomiyasu

… Investigating the dependence of microscopic yield stress on strain rate and impurity concentration gives us additional information. … The activation volume obtained from the dependence of microscopic yield stress on strain rate is comparable to the value estimated from the concentration of impurity. … Then the dislocation starts to move overcoming impurity-vacancy dipoles as obstacles to dislocation motion. …

Radiation Measurements 46(12), 1389-1392, 2011-12

IR CrossRef
4

Investigation of the yield process by deformation luminescence of X-ray irradiated KCl:Ca2+

Nakamura Shoichi , Ida K. , Ohgaku Tomiyasu

… Investigating the dependence of microscopic yield stress on strain rate and impurity concentration gives us additional information. … The activation volume obtained from the dependence of microscopic yield stress on strain rate is comparable to the value estimated from the concentration of impurity. … Then the dislocation starts to move overcoming impurity-vacancy dipoles as obstacles to dislocation motion. …

Radiation Measurements 46(12), 1389-1392, 2011-12

IR CrossRef
5

Suppression of Precipitates in the La<sub>2-x</sub>Sr<sub>x</sub>CuO<sub>4</sub> Films Grown on LaSrAlO<sub>4</sub> Substrates by Introducing Homoepitaxial Layer

Li Bing-Sheng , Sawa Akihito , Okamoto Hiroshi

… Introduction of the LSAO HL significantly suppressed the segregation of impurity phases in the LSCO films especially in a higher Sr-doping range ($x > … The suppression of impurity phases also enables us to obtain the desired stoichiometry of the LSCO films, which show the superconducting dome in the $x$-temperature phase diagram very similar to that of bulk samples. …

Jpn J Appl Phys 50(9), 093101-093101-3, 2011-09-25

The Japan Society of Applied Physics
6

The Magnetic Properties of Hole-Doped MgO

Seike Masayoshi , Sato Kazunori , Katayama-Yoshida Hiroshi

… However, an inhomogeneous dopant distribution in MgO is the favored configuration, which indicates that spinodal decomposition leads to the room-temperature blocking temperature at smaller impurity concentrations than those estimated for room-temperature ferromagnetism under the homogeneous distribution condition. …

Jpn J Appl Phys 50(9), 090204-090204-3, 2011-09-25

The Japan Society of Applied Physics
7

Magnesium Doping Controlled Density and Mobility of Two-Dimensional Electron Gas in Mg<sub>x</sub>Zn<sub>1-x</sub>O/ZnO Heterostructures

Falson Joseph , Maryenko Denis , Kozuka Yusuke , Tsukazaki Atsushi , Kawasaki Masashi

… By selecting an optimum magnesium content ($x\sim 0.01$), the mobility is enhanced to over 700,000 cm2 V-1 s-1 due to reduced impurity levels associated with the use of pure distilled ozone and avoiding interface roughness scattering. …

Applied Physics Express 4(9), 091101-091101-3, 2011-09-25

The Japan Society of Applied Physics
8

4. Progress and Issues of Modeling of the Tungsten Impurity Transport(<Special Topic Article>Recent Progress and Issues of Tungsten Research for Fusion Reactor Plasma and Divertor) [in Japanese]

HOSHINO Kazuo

プラズマ対向壁の損耗や,壁から発生した不純物によるコアプラズマの性能への影響等を評価する上で,シミュレーションの持つ役割は大きい.周辺領域におけるタングステン不純物輸送の解析に対しては,従来のダイバータプラズマや低Z不純物の輸送にも用いられてきたプラズマ流体コードや,運動論的効果や詳細なプラズマ壁相互作用等を取り入れたモンテカルロ法に基づく粒子コードが用いられる.一方,コア領域では,これまでの新古 …

Journal of plasma and fusion research 87(9), 600-606, 2011-09-25

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9

2. Progress in Transport and Control Studies of Tungsten in Tokamak Experiments(<Special Topic Article>Recent Progress and Issues of Tungsten Research for Fusion Reactor Plasma and Divertor) [in Japanese]

ASAKURA Nobuyuki , NAKANO Tomohide

タングステンはITERのダイバータ対向材として設置され,高温壁の原型炉では第一壁材としても考えられているが,高温の炉心プラズマ実験での経験はまだ豊富とは言えず,そのプラズマ中での制御研究が望まれている.本章では,高温で高閉じ込め性能のトカマク・プラズマ実験(ASDEX-Upgrade,JT-60U,Alcator C-MOD,TEXTOR)で進められている,タングステン(およびモリブデン)の発生要 …

Journal of plasma and fusion research 87(9), 577-590, 2011-09-25

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10

Structural Dependence of Grain Boundary Resistivity in Copper Nanowires

Kim Tae-Hwan , Nicholson Don M. , Zhang X.-G. , Evans Boyd M. , Kulkarni Nagraj S. , Kenik Edward A. , Meyer Harry M. , Radhakrishnan Balasubramaniam , Li An-Ping

… The impurity distributions in the nanowires are characterized in correlating to the microstructures. … The resistance of high symmetry coincidence GBs and the impurity contributions are then calculated using a first-principle method which confirms that the coincidence GBs have orders of magnitude smaller resistance than the high-angle random GBs. …

Jpn J Appl Phys 50(8), 08LB09-08LB09-4, 2011-08-25

The Japan Society of Applied Physics
11

Purified Silicon Film Formation from Metallurgical-Grade Silicon by Hydrogen-Plasma-Induced Chemical Transport

Ohmi Hiromasa , Yamada Takahiro , Kakiuchi Hiroaki , Yasutake Kiyoshi

… It is demonstrated that the concentrations of most metal impurities (e.g., Fe, Cr, Ni, Ti, and Mn) in the prepared Si film are in the acceptable range for solar-grade Si material, or below the determination limit of the several impurity measuring methods employed in this study. …

Jpn J Appl Phys 50(8), 08JD01-08JD01-6, 2011-08-25

The Japan Society of Applied Physics
12

Improvement of Electron Mobility above 100,000 cm2 V-1 s-1 in Mg<sub>x</sub>Zn<sub>1-x</sub>O/ZnO Heterostructures

Akasaka Shunsuke , Tsukazaki Atsushi , Nakahara Ken , Ohtomo Akira , Kawasaki Masashi

… By the optimization of growth conditions, in particular growth rate, ionized impurity scattering in the ZnO channel could be reduced significantly. …

Jpn J Appl Phys 50(8), 080215-080215-3, 2011-08-25

The Japan Society of Applied Physics
13

22pGQ-14 DFT spin-contamination problem on magnetic impurity defect in diamond [in Japanese]

Tateyama Yoshitaka , Otsuka Takao , Harada Yoshihisa , Morita Masahito

Meeting abstracts of the Physical Society of Japan 66(2-4), 994, 2011-08-24

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14

22aGQ-13 Effects of impurity doping on dislocation motion in SiGe thin films on Si substrate [in Japanese]

Yamashita Yoshifumi , Funaki Toru , Matsunaga Takuya , Kamiura Yoichi , Ishiyama Takeshi

Meeting abstracts of the Physical Society of Japan 66(2-4), 982, 2011-08-24

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15

22aGQ-6 Vacancy formation energy in impurity-doped silicon crystals [in Japanese]

Suezawa Masashi , Yonenaga Ichiro

Meeting abstracts of the Physical Society of Japan 66(2-4), 980, 2011-08-24

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16

23pPSA-25 Electron Transfer on Impurity doped Graphene Nanoribbon [in Japanese]

Tsuyuki Hiroyoshi , Sakamoto Shoichi , Tomiya Mitsuyoshi

Meeting abstracts of the Physical Society of Japan 66(2-4), 942, 2011-08-24

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17

24aTE-9 Energetics and electronic structure on impurity states in a hexagonal boron-nitride sheet [in Japanese]

Fujimoto Yoshitaka , Koretsune Takashi , Saito Susumu

Meeting abstracts of the Physical Society of Japan 66(2-4), 891, 2011-08-24

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18

21pTD-3 Minute impurity analysis in DNTT thin-film transistors with use of field-induced GSR spectroscopy [in Japanese]

Takahashi E. , Matsui H. , Takimiya K. , Hasegawa T.

Meeting abstracts of the Physical Society of Japan 66(2-4), 843, 2011-08-24

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19

21aTG-3 First-principles calculation of electric conductance of carbon nanotube : the effect of hydrogen impurity and magnetic electrode [in Japanese]

Ishii Fumiyuki , Kawasaki Tomoyo , Sawada Keisuke , Saito Mineo

Meeting abstracts of the Physical Society of Japan 66(2-4), 836, 2011-08-24

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20

23aTR-4 Analythis of Impurity Effects on Superconductivity on Surfaces of Topological Insulators by BdG Equation [in Japanese]

Ito Yuto , Yamaji Youhei , Imada Masatoshi

Meeting abstracts of the Physical Society of Japan 66(2-4), 691, 2011-08-24

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Meeting abstracts of the Physical Society of Japan
Jpn J Appl Phys
Journal of plasma and fusion research
Radiation Measurements
Annals of Nuclear Energy
Applied Physics Express
Physical Review B

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