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-Ti alloyZhang, B.*; Xin, S.*; Huang, M.*; Mao, W.; Jia, W.*; Li, Q.*; Li, S.*; Zhang, S.*; Mao, C.*
Materials Science & Engineering A, 890, p.145898_1 - 145898_7, 2024/01
被引用回数：0 パーセンタイル：0(Nanoscience & Nanotechnology)本研究では、高Zr--Ti合金の変形温度を300Kから77Kに下げると回復ひずみが2.25%から5.5%に大幅に増加することを報告した。この合金の超弾性は77Kにおいて粒径に依存しないことがわかった。その結果、粗粒試料は77Kで超微粒試料とほぼ同じ超弾性を示すことがわかった。変形誘起マルテンサイト変態と転位すべりの相対的な容易さは77Kで大きく変化し、転位すべりは強く抑制され、超弾性に対する結晶粒の微細化の影響は影を潜めた。
Kong, L.*; Gong, J.*; Hu, Q.*; Capitani, F.*; Celeste, A.*; 服部 高典; 佐野 亜沙美; Li, N.*; Yang, W.*; Liu, G.*; et al.
Advanced Functional Materials, 31(9), p.2009131_1 - 2009131_12, 2021/02
被引用回数：23 パーセンタイル：80.82(Chemistry, Multidisciplinary)有機-無機ハロゲン化物ペロブスカイトは非常に柔らかいために、圧力などの外部刺激により格子定数を容易に変化させることができ、有用な光電特性を引き出すのに有効である。一方でこの特性は、多少の加圧でも、格子を歪ませてしまい、光と物質の相互作用を弱め、それによる性能の低下を引き起こす。そこで本研究では、代表的な物質であるヨウ化メチルアンモニウム鉛に対して圧力効果および同位体効果を調べ、それらが格子歪を抑制することが分かった。このことは、それらが、これまで得られなかったような光学的,機械的特性を持つ物質を得る手段として有効であることを示している。
baryons and fine structure of strong interactionChen, H.-X.*; Cui, E.-L.*; 保坂 淳; Mao, Q.*; Yang, H.-M.*
European Physical Journal C, 80(3), p.256_1 - 256_6, 2020/03
被引用回数：11 パーセンタイル：61.3(Physics, Particles & Fields)The heavy baryon system bounded by the strong interaction has a rich internal structure, so its mass spectra can have the fine structure similar to the line spectra of atom bounded by the electromagnetic interaction. We systematically study the internal structure of 
-wave baryons and calculate their 
-wave decay properties. The present study, together with our previous studies on their mass spectra and 
-wave decay properties, suggest that all the four excited baryons recently discovered by LHCb can be well explained as -wave baryons, and their beautiful fine structure is directly related to the rich internal structure of -wave baryons.
-wave bottom baryons within light-cone sum rulesYang, H.-M.*; Chen, H.-X.*; Cui, E.-L.*; 保坂 淳; Mao, Q.*
European Physical Journal C, 80(2), p.80_1 - 80_17, 2020/02
被引用回数：20 パーセンタイル：79.67(Physics, Particles & Fields)We use the method of light-cone sum rules to study decay properties of -wave bottom baryons belonging to the 
flavor 6
representation. In Cui et al. (Phys Rev D 99:094021, 2019) we have studied their mass spectrum and pionic decays, and found that the 
(6097) and 
(6227) can be well interpreted as -wave bottom baryons of 
= 3/2
. In this paper we further study their decays into ground-state bottom baryons and vector mesons. We propose to search for a new state (5/2), that is the = 5/2 partner state of the (6227), in the (5/2)
*
*
decay process. Its mass is 12
5 MeV larger than that of the (6227).
Ding, F.*; 芦川 直子*; 福本 正勝; 片山 一成*; Mao, H.*; Ding, R.*; Xu, Q.*; Wu, J.*; Xie, C. Y.*; Luo, G.-N.*
no journal, ,
Castellated tungsten samples with different gap width and gap depth are exposed to the scrape-off-layer plasma with the material and plasma evaluation system (MAPES) to investigate effects of castellation configurations on impurity deposition and fuel retention. After the plasma exposure, composition and distribution of the impurity deposited on the inner surface of the gap are investigated. The composition and the distribution of the deposits have a strong dependence of the gap configuration. The amount of the deposits on the inner surface of the inverse trapezoid gap is small compared with that of the rectangular gap with the same top width. For all the samples, the amount of the deposits decreases with the gap width and depth.
