2009 Annual Report Vol.37 - 中研院物理研究所 - Academia Sinica

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capping a layer on top of the nanoparticles. The magnetization has been enhanced by capping different specific materials. These results are interesting and partial results have been published recently in Applied Physics Letters (APL 90, 182508, 2007 and APL 91, 82505, 2007) and Advanced Materials (20, 779, 2008). FIG.. 2. M-H loops of Ge layers with different thickness of 20 nm nanospheres. 24
FeCoGa (Co-Galfenol): Fe81-XCoXGa19 (with x ranging from 0 to 19 at.%Co) films were made by the dc magnetron sputtering method. We have studied the structural (phases, texturing, and grain size D), magnetic (saturation magnetostriction λS and coercivity HC), mechanical (Young’s modulus Ef and hardness Hf), and electrical (electrical resistivity ρ) properties of these films. The main results are: [i] all the films are (110) textured; [ii] the bct phase (with twinned grains) coexists with the bcc phase only in the case of x ≤ 3 at.%Co; [iii] λS increases steadily from 42 ppm to 86 ppm, as x increases from 0 to 19 at.%Co; [iv] ρ reaches the saturation limit, about 200 μΩcm, when 19 ≥ x ≥ 15 at.%Co. In conclusion, we report that the Fe62Co19Ga19 film has the optimal magnetic and electrical properties among all the FeCoGa films : λS = 86 ppm, = 110 ppm, HS = 50 Oe, HC = 25 Oe, and ρ = 205 μΩcm. These properties suggest that the Fe62Co19Ga19 film is a good candidate for application in a thin-film actuator device. λ (ppm) 140 120 Fe Co Ga 62 19 19 100 80 60 40 20 0 λ / / -20 -40 λ Ο λ ⊥ -100-80 -60 -40 -20 0 20 40 60 80 100 H (Oe) Fig.3 The longitudinal and transverse magnetostrictions (λ║ and λ⊥) plotted as a function of the external field H. (4) Quantum electronics physics Taking advantage of modern electron-beam lithography technology, we are able to fabricate various nanometer-scaled structures and electronic devices with the critical dimension well below 100 nm. Our research directions can be largely divided into two categories: to study novel (quantum) effects associate the small length scale of the 25
Page 1 and 2: 中央研究院物理研究所年
Page 3 and 4: 中央研究院物理研究所年
Page 5 and 6: I Members of the Institute
Page 7 and 8: 黃英碩 Ing-Shouh Hwang 任盛源
Page 9 and 10: 林誠謙 Simon C. Lin, 劉鏞 Liou
Page 11 and 12: Chih-hsun LIN 薛韻馨 Shiue,Jessi
Page 13 and 14: Adjunct Faculty 江海邦 Hai-Pang
Page 15 and 16: Min-Nan Ou (歐敏男) Cheng-Liang
Page 17 and 18: II Review of Research Projects
Page 19 and 20: The Institute of Physics Logo The l
Page 21 and 22: SERVICE These include: ---All libra
Page 23 and 24: Institute of Physics Machine Shop T
Page 25 and 26: Some past research accomplishments
Page 27 and 28: • We have developed new methods f
Page 29: (3) Spintronics, magnetic nanostruc
Page 33 and 34: embedded inadvertently in the surfa
Page 35 and 36: ealized in experiments. (Phys. Rev.
Page 37 and 38: Chii-Dong Chen Research Fellow Tel
Page 39 and 40: Tel : 886-2-2789-6723 / yung@phys.s
Page 41 and 42: Based on the velocity distributions
Page 43 and 44: Theoretically, we address the probl
Page 45 and 46: few Kuhn steps and a few seconds. T
Page 47 and 48: Y / H 8 6 4 2 0 -2 -4 -6 -8 (a) (b)
Page 49 and 50: Postdoctoral Research Associates an
Page 51 and 52: the nucleon. In Brookhaven National
Page 53 and 54: (C) Neutrino and astro-particle phy
Page 55 and 56: ecome one of the 11 Tier-1 centers
Page 57 and 58: Research Interest: Computational Ph
Page 59 and 60: III List of Ongoing Research Projec
Page 61 and 62: 主持人計劃名稱執行
Page 67 and 68: IV Publication List of 2009
Page 69 and 70: 20, 285307. ( SCI: 3.446, ranking:
Page 71 and 72: ( SCI: 5.05, ranking: 16.7%,20% )
Page 73 and 74: 7.4% ) Huey-Jen Fang, Yong-Zhong Ch
Page 75 and 76: H.Y. Cheng, H.N. Li, K.F. Liu, 2009
Page 77 and 78: November 17, 2009. Fermilab-Pub-09-
Page 79 and 80: electrostatic phase plate: theory a
Page 81 and 82:
Search for WW and WZ Production in
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T. Aaltonen et al., The CDF Collabo
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012002. ( SCI: 5.05, ranking: 16.7%
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crystals doped with Cu", New Journa
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V Academic Activities
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研究人員名稱學術會議名
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研討會名稱會議期間地點
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演講題目演講者所屬機構
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Visiting Scholars 中央研究院
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訪問學人所屬機構訪
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2009 Annual Report Vol.37 - 中研院物理研究所 - Academia Sinica

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