Publications

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1999
Fang, TK, Ho YK.  1999.  Strong electric-field effects on the structure profiles of doubly excited resonances in He ground-state photoionization. Physical Review A. 60:2145., Number 3: APS Abstract1999_7.pdf

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Tsai, C-S, Chen C, Lin C-E, Lin J-C, Wang J-K.  1999.  Surface Raman Scattering Study on the Hydrogenated Semiconductor Surfaces: Vibrational Dephasing Dynamics. Surf. Sci. 427-428:509-515.31-1-surface_science_vol_427-428_p_318-323_1999.pdf
Lin, H. P.; Cheng, LYR; CR, et al.  1999.  The synthesis and application of the mesoporous molecular sieves MCM-41 - A review. Journal of the Chinese Chemical Society. 46:495-507.
1998
Chen, KH, Bhusari DM, Wu JJ, Wei SL, Liu RL, Chen LC.  1998.  Silicon-containing Crystalline Carbon Nitride: a Novel Wide Band Gap Material. the symposium on Light Emitting Devices for Optoelectronic Applications, Electrochemical Society. :Vol98-2,417-433.
Lu, TR, Chen LC, Chen KH, Bhusari DM, Chen TM, Kuo CT.  1998.  Sputtering Process of Carbon Nitride Films by Using a Novel Bio-Molecular C-N Containing Target. Thin Solid Films. 332:74.
Su, C, Lin J-C.  1998.  Structural Instability of Diamond C(111) Surface Induced by Hydrogen Chemisorption. J. Chem. Phys.. 109:9549-9560.
Wu, JT, Fang TH, Hsu CF, Yu YY, Wang GJ, Tang CW, Chen KH, Lii KH.  1998.  Synthesis and Characterization of an Organic-inorganic Hybrid Compound: [WO3(2,2’-bipyridine)]. J. Matter. Chem.. 8:2181.
1997
Chen, LC, Bhusari DM, Yang CY, Chen KH, Chuang TJ, Lin MC, Chen CK, Huang YF.  1997.  Si-Containing Crystalline Carbon Nitride Derived by Microwave Plasma-Enhanced Chemical Vapor Deposition. Thin Solid Film. 303:66-75.
1996
Hong, IH, Shyu SC, Chou YC, Wei CM.  1996.  Surface-dimer and bulk-atom imaging of the Si(001)(2x1) surface by Kikuchi electron holography (vol 52, pg 16884, 1995), Aug. Physical Review B. 54:5178-5178., Number 7 AbstractWebsite

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Ho, YK.  1996.  Strong Electric-Field Effects on the Doubly-Excited 2s21 Se, 2s2p 1Po and 2p2 1De States of He. Chinese Journal of Physics. 34:1136–1144., Number 4: Chinese Journal of Physics Abstract1996_3.pdf

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H, C-C, Lin J-C.  1996.  Structure and Bonding of C2H2 on Diamond C (111)-1x1:H: Infrared Spectroscopy and Exciton Calculations. J. Phys. Chem.. 100:7018-7025.20-j_phys._chem._vol_100_p_7018-7025_1996.pdf
Ho, YK.  1996.  Strong electric-field effects on the doubly-excited intrashell states of He below the He+(N= 2) threshold. Zeitschrift für Physik D Atoms, Molecules and Clusters. 38:191–196., Number 3: Springer Abstract
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1995
Wang, Y, Chou MY.  1995.  STRUCTURAL AND ELECTRONIC-PROPERTIES OF HEXAGONAL YTTRIUM TRIHYDRIDE, Mar. Physical Review B. 51:7500-7507., Number 12 AbstractWebsite
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Hong, IH, Shyu SC, Chou YC, Wei CM.  1995.  Surface-dimer and bulk-atom imaging of the Si(001) (2x1) surface by Kikuchi electron holography, Dec. Physical Review B. 52:16884-16891., Number 23 AbstractWebsite

Direct inversion of measured multiple-energy Kikuchi electron patterns from a Si(001) (2 x 1) surface with glancing and normal-incidence geometry shows clear images of the surface dimer and the bulk atoms. The three-dimensional artifact-free real-space images of the atoms contributed from different local emitters are resolved clearly. The observations demonstrate that Kikuchi electron holography has the surface sensitivity and can reveal the atomic structures of complicated multiemitter systems. By changing the collecting angle of Kikuchi electrons, one can selectively image the atoms behind the emitter in the backward direction; thus the surface and the bulk information can be obtained with different collecting angles. Therefore, the potential of Kikuchi electron holography to solve the local atomic structure of the unknown surfaces is high.

Ho, YK.  1995.  Strong Electric-Field Effects on Doubly Excited Feshbach Resonant States of H-below the N= 3 Threshold of Hydrogen Atom. Chinese Journal of Physics. 33, Number 3 Abstract1995_4.pdf

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1994
Hong, IH, Jeng PR, Shyu SC, Chou YC, Wei CM.  1994.  SURFACE DIMER IMAGING USING KIKUCHI ELECTRON HOLOGRAPHY - A STUDY ON SI(001)(2X1) SURFACE, Jun. Surface Science. 312:L743-L747., Number 1-2 AbstractWebsite

We obtained highly resolved and artifact-free 3D holographic images reconstructed from measured Kikuchi electron (quasi-elastic electron) diffraction patterns with contributions from different emitters. Direct inversion of Kikuchi patterns with glancing incidence geometry shows clear images of the surface dimer and the bulk atoms of Si(001)(2 x 1) surface. This observation demonstrates the applicability of electron-emission holography to complicated systems that contain more than one emitter. This work also demonstrates the surface sensitivity of Kikuchi electron holography.

Ho, YK.  1994.  Shape resonances in e\^{}$\{$-$\}$-H scattering above the hydrogen N= 4 threshold. Physical Review A. 49:3659., Number 5: APS Abstract1994_5.pdf

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1993
Chou, MY, Wei SQ, Vanderbilt D.  1993.  SHOULD ALL SURFACES BE RECONSTRUCTED - COMMENT, Jul. Physical Review Letters. 71:461-461., Number 3 AbstractWebsite
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Kim, B, Chen J, Erskine JL, Mei WN, Wei CM.  1993.  SURFACE AND BULK PHOTOELECTRON DIFFRACTION FROM W(110) 4F CORE LEVELS, Aug. Physical Review B. 48:4735-4740., Number 7 AbstractWebsite

Energy- and angle-dependent photoelectron cross sections from surface and bulk W(110) 4f7/2 core levels are measured and compared with dynamical multiple scattering calculations. The agreement between experimental and theoretical results is found to be significantly better than corresponding previous studies, permitting a determination of the first layer atomic plane distance: d12 = 2.26 +/- 0.05 angstrom. Forward-scattering enhancements along bond directions are observed under selected scattering conditions. In all cases, final-state multiple scattering accounts for the principal energy and angle dependencies in the cross section. Typical variation of bulk and surface 4f photoelectron intensities with kinetic energy or emission angle resulting from final-state effects is observed to be a factor of 2. This result suggests that previous core-level spectra for stepped W(110) surfaces have been incorrectly interpreted.

1989
Chen, K-H.  1989.  Spontaneous Raman and Coherent Anti-Stokes Raman Spectroscopy of Infrared Multiphoton Excited Molecules. : Harvard University
1987
Chou, MY, Chelikowsky JR.  1987.  STRUCTURAL-PROPERTIES OF THE RU(0001) SURFACE, Feb. Physical Review B. 35:2124-2127., Number 5 AbstractWebsite
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1984
Ho, YK, Callaway J.  1984.  Supermultiplet structures of doubly excited states of H-below the N= 6 hydrogen threshold. Journal of Physics B: Atomic and Molecular Physics. 17:L559., Number 17: IOP Publishing Abstract1984_6.pdf

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1976
Ho, YK, Fraser PA.  1976.  S-wave collisions of positrons with helium. Journal of Physics B: Atomic and Molecular Physics. 9:3213., Number 18: IOP Publishing Abstract1976_2.pdf

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1975
Ho, YK, Fraser PA, Kraidy M.  1975.  The S-wave elastic scattering of positrons by helium in the coupled static approximation. Journal of Physics B: Atomic and Molecular Physics. 8:1289., Number 8: IOP Publishing Abstract1975_3.pdf

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