Browsing by Author Chan, Helen L. W.

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Issue DateTitleAuthor(s)
2002Fabrication of multilayer ring transformerWong, Nga-yan; Chan, Helen L. W.; Choy, Chung-loong
17-Sep-2013Fabrication of piezoelectric single crystalline thin layer on silicon waferPeng, Jue; Chao, Chen; Dai, Jiyan; Chan, Helen L. W.
Mar-2003Factors affecting the performance of the bimorph-based dilatometer for field induced strain measurement of polymer filmsGuo, Shishang; Chan, Helen L. W.; Zhao, Xingzhong; Choy, Chung-loong
1-May-2009Ferroelectric poling and converse-piezoelectric-effect-induced strain effects in La₀.₇Ba₀.₃MnO₃ thin films grown on ferroelectric single-crystal substratesZheng, R. K.; Jiang, Y.; Wang, Yu; Chan, Helen L. W.; Choy, Chung-loong; Luo, H. S.
16-Jun-2003Ferroelectric properties of (Ba[sub 0.5]Sr[sub 0.5])TiO₃/Pb(Zr[sub 0.52]Ti[sub 0.48])O₃/(Ba[sub 0.5]Sr[sub 0.5])TiO₃ thin films with platinum electrodesYan, Feng; Wang, Yening; Chan, Helen L. W.; Choy, Chung-loong
10-Jan-2011Ferroelectric, piezoelectric, and leakage current properties of (K₀.₄₈Na₀.₄₈Li₀.₀₄)(Nb₀.₇₇₅Ta₀.₂₂₅)O₃ thin films grown by pulsed laser depositionWang, Dan-Yang; Lin, Dunmin; Kwok, Kin-wing; Chan, N. Y.; Dai, Jiyan; Li, S.; Chan, Helen L. W.
17-Apr-2007Fine-grained BaZr[sub 0.2]Ti[sub 0.8]O₃ thin films for tunable device applicationsYing, Z.; Yun, P.; Wang, Danyang; Zhou, Xiaoyuan; Song, Z. T.; Feng, S. L.; Wang, Yu; Chan, Helen L. W.
2002Finite element analysis on piezoelectric ring transformerLi, Hing-leung; Hu, Junhui; Chan, Helen L. W.
Oct-2004Finite element analysis on piezoelectric ring transformerLi, Hing-leung; Hu, Junhui; Chan, Helen L. W.
15-Feb-2010First-principles study on the electronic and optical properties of Na₀.₅Bi₀.₅TiO₃lead-free piezoelectric crystalZeng, Min; Or, Derek Siu-wing; Chan, Helen L. W.
26-Aug-2011Flattening of conic reflectors via a transformation methodLuo, Yang; He, Lianxing; Zhu, Shou-Zheng; Chan, Helen L. W.; Wang, Yu
1-May-2010Frequency response of magnetoelectric 1–3-type compositesLam, Kwok-ho; Lo, Ching-yin; Chan, Helen L. W.
2004General study on piezoelectric transformerKwok, K. F.; Dong, Ping; Cheng, K. W. Eric; Kwok, Kin-wing; Ho, Y. L.; Wang, X. X.; Chan, Helen L. W.
1-Apr-2010Giant magnetoelectric effect in magnet-cymbal-solenoid current-to-voltage conversion deviceZeng, Min; Or, Derek Siu-wing; Chan, Helen L. W.
15-Jun-2003Giant magnetoelectric effect of a hybrid of magnetostrictive and piezoelectric compositesWan, J. G.; Liu, J.-M.; Chan, Helen L. W.; Choy, Chung-loong; Wang, G. H.; Nan, C. W.
17-May-2010Giant resonance frequency tunable magnetoelectric effect in a device of Pb(Zr₀.₅₂Ti₀.₄₈)O₃drum transducer, NdFeB magnet, and Fe-core solenoidZeng, Min; Or, Derek Siu-wing; Chan, Helen L. W.
16-Sep-2008Giant sharp converse magnetoelectric effect from the combination of a piezoelectric transformer with a piezoelectric/magnetostrictive laminated compositeWang, Yaojin; Wang, Feifei; Or, Derek Siu-wing; Chan, Helen L. W.; Zhao, Xiangyong; Luo, Haosu
15-Mar-2003Growth and characterization of Hf-aluminate high-k gate dielectric ultrathin films with equivalent oxide thickness less than 10 ÅLee, P. F.; Dai, Jiyan; Wong, Kin-hung; Chan, Helen L. W.; Choy, Chung-loong
7-Jun-2004Growth and pyroelectric property of 0.2 mol % Fe-doped Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.38PbTiO₃ single crystals measured by a dynamic techniqueWan, Xinming; Tang, Xingui; Wang, Jie; Chan, Helen L. W.; Choy, Chung-loong; Luo, Haosu
26-Apr-2004High electrostriction and relaxor ferroelectric behavior in proton-irradiated poly(vinylidene fluoride-trifluoroethylene) copolymerGuo, Shishang; Zhao, Xingzhong; Zhou, Qifa; Chan, Helen L. W.; Choy, Chung-loong
17-May-2007High magnetoelectric effect in laminated composites of giant magnetostrictive alloy and lead-free piezoelectric ceramicJia, Yanmin; Or, Derek Siu-wing; Wang, Jie; Chan, Helen L. W.; Zhao, Xiangyong; Luo, Haosu
27-Mar-2006High sensitivity cymbal-based accelerometerSun, Chengliang; Lam, Kwok-ho; Choy, Siu-hong; Chan, Helen L. W.; Zhao, Xingzhong; Choy, Chung-loong
28-Apr-2003High tunability in compositionally graded epitaxial barium strontium titanate thin films by pulsed-laser depositionLu, S. G.; Zhu, X. H.; Mak, Chee-leung; Wong, Kin-hung; Chan, Helen L. W.; Choy, Chung-loong
15-Apr-2008High-frequency ultrasonic hydrophone based on a cladding-etched DBR fiber laserShao, Liyang; Lau, Sien Ting; Dong, Xinyong; Zhang, A. Ping; Chan, Helen L. W.; Tam, Hwa-yaw; He, Sailing
8-Oct-2008Highly efficient low-voltage cathodoluminescence of LaF₃:Ln[sup 3+] (Ln=Eu[sup 3+], Ce[sup 3+], Tb[sup 3+]) spherical particlesWang, Zhenling; Chan, Helen L. W.; Li, Hiuling; Hao, J. H.
20-Mar-2008Hydrogen : a metastable donor in TiO₂ single crystalsChen, W. P.; Wang, Yu; Chan, Helen L. W.
18-May-2006Hydrogen-related dynamic dielectric behavior of barium titanate single crystalsChen, W. P.; Wang, Yu; Chan, Helen L. W.; Luo, Haosu
30-Aug-2004In-plane dielectric properties of epitaxial 0.65Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.35 PbTiO₃ thin films in a very wide frequency rangeWang, Yu; Cheng, Y. L.; Cheng, Kei-chun; Chan, Helen L. W.; Choy, Chung-loong; Liu, Z. R.
16-Jan-2012The influence of gate dielectrics on a high-mobility n-type conjugated polymer in organic thin-film transistorsLi, Jinhua; Du, Jun; Xu, Jianbin; Chan, Helen L. W.; Yan, Feng
Feb-2011An integrated microfluidic chip with 40 MHz lead-free transducer for fluid analysisLee, Siu To Felix; Lam, Kai-siu; Lei, Lei; Zhang, Xuming; Chan, Helen L. W.
5-May-2008Integration of ultrasonic transducers in fast prototyping microfluidic devicesGuo, Shishang; Lau, Sien Ting; Lam, Kwok-ho; Deng, Y. L.; Zhao, Xingzhong; Chen, Y.; Chan, Helen L. W.
15-May-2010Interfacial engineering and coupling of electric and magnetic properties in Pb(Zr₀.₅₃Ti₀.₄₇)O₃ /CoFe₂O₄multiferroic epitaxial multilayersZhang, Jinxing; Dai, Jiyan; Chan, Helen L. W.
2001Internal fields in PT/PVDF-TrFE 0-3 compositesPloss, Beatrix; Ploss, Bernd; Shin, Franklin G.; Chan, Helen L. W.; Choy, Chung-loong
2002Internal friction and Young's modulus of titanium-doped lead magnesium niobateBao, Peng; Yan, Feng; Li, W.; Dai, Y. R.; Shen, H. M.; Zhu, J. S.; Chan, Helen L. W.; Choy, Chung-loong; Wang, Yening
2002Investigation of the trap states in quenched and annealed nylon 6 films using thermally stimulated depolarization currentZhu, J.; Zhang, X. Y.; Dai, J. B.; Chan, Helen L. W.
1-Nov-2002La-doped effect on the ferroelectric properties of Bi₄Ti₃O₁₂-SrBi₄Ti₄O[sub 15] thin film fabricated by pulsed laser depositionZhu, J. S.; Su, D.; Lu, X. M.; Qin, H. X.; Wang, Yening; Wang, Danyang; Chan, Helen L. W.; Wong, Kin-hung; Choy, Chung-loong
Oct-2006Large magnetostriction in epoxy-bonded Terfenol-D continuous-fiber composite with [112] crystallographic orientationLo, Ching-yin; Or, Derek Siu-wing; Chan, Helen L. W.
May-1999Lead zirconate titanate/poly(vinylidene fluoride-trifluoroethylene) 1-3 composites for ultrasonic transducer applicationsKwok, Kin-wing; Chan, Helen L. W.; Choy, Chung-loong
28-Nov-2007Lead-free acoustic emission sensorsLam, Kwok-ho; Lin, Dunmin; Chan, Helen L. W.
23-May-2008Lead-free ceramics for pyroelectric applicationsLau, Sien Ting; Cheng, C. H.; Choy, Siu-hong; Lin, Dunmin; Kwok, Kin-wing; Chan, Helen L. W.
29-Jan-2007Lead-free multilayer piezoelectric transformerGuo, Mingsen; Jiang, X. P.; Lam, Kwok-ho; Wang, Sheng; Sun, Chengliang; Chan, Helen L. W.; Zhao, Xingzhong
5-Oct-2010Lead-free piezoelectric transducers for microelectronic wirebonding applicationsKwok, Kin-wing; Lee, T.; Choy, Siu-hong; Chan, Helen L. W.
9-Mar-2007A lead-free piezoelectric transformer in radial vibration modesGuo, Mingsen; Lin, Dunmin; Lam, Kwok-ho; Wang, Sheng; Chan, Helen L. W.; Zhao, Xingzhong
Aug-2008Lead-free piezoelectric-metal-cavity (PMC) actuatorsLam, Kwok-ho; Lin, Dunmin; Kwok, Kin-wing; Chan, Helen L. W.
15-Oct-2003Leakage current and relaxation characteristics of highly (111)-oriented lead calcium titanate thin filmsTang, Xingui; Wang, Jie; Zhang, Y. W.; Chan, Helen L. W.
1-Sep-2002Longitudinal and transverse piezoelectric coefficients of lead zirconate titanate/vinylidene fluoride-trifluoroethylene composites with different polarization statesZeng, R.; Kwok, Kin-wing; Chan, Helen L. W.; Choy, Chung-loong
18-Sep-2008Lorentz-type relationship of the temperature dependent dielectric permittivity in ferroelectrics with diffuse phase transitionKe, Shanming; Fan, Huiqing; Huang, Haitao; Chan, Helen L. W.
9-Feb-2004Low-temperature switching fatigue behavior of ferroelectric SrBi₂Ta₂O[sub 9] thin filmsYuan, G. L.; Liu, J.-M.; Zhang, S. T.; Wu, D.; Wang, Y. P.; Liu, Zhiguo; Chan, Helen L. W.; Choy, Chung-loong
13-Jul-2009Magnetic and luminescent properties of multifunctional GdF₃: Eu³⁺ nanoparticlesWong, Hon-tung; Chan, Helen L. W.; Hao, J. H.
Oct-2010Magnetic field-induced strain and magnetoelectric effects in sandwich composite of ferromagnetic shape memory Ni-Mn-Ga crystal and piezoelectric PVDF polymerZeng, Min; Or, Derek Siu-wing; Chan, Helen L. W.
14-Jan-2008Magnetoelectric coupling in CoFe₂O₄/SrRuO₃/Pb(Zr[sub 0.52]Ti[sub 0.48])O₃ heteroepitaxial thin film structureZhang, J. X.; Dai, Jiyan; Chow, C. K.; Sun, Chengliang; Lo, Veng-cheong; Chan, Helen L. W.
3-Apr-2007Magnetoelectric devices and methods of using sameOr, Derek Siu-wing; Chan, Helen L. W.
20-Nov-2007Magnetoelectric devices and methods of using sameOr, Derek Siu-wing; Chan, Helen L. W.
27-Mar-2008Magnetoelectric effect from mechanically mediated torsional magnetic force effect in NdFeB magnets and shear piezoelectric effect in 0.7Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.3PbTiO₃ single crystalWang, Yaojin; Or, Derek Siu-wing; Chan, Helen L. W.; Zhao, Xiangyong; Luo, Haosu
4-Apr-2006Magnetoelectric effect in laminate composite of magnets/0.7Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.3PbTiO₃ single crystalJia, Yanmin; Zhao, Xiangyong; Luo, Haosu; Or, Derek Siu-wing; Chan, Helen L. W.
1-May-2010Magnetoelectric effect in lead-free BNKLBT ceramic/terfenol-D continue fiber composite laminatesLo, Ching-yin; Choi, Siu-hong; Or, Derek Siu-wing; Chan, Helen L. W.
Jul-2004Magnetoelectric properties of a heterostructure of magnetostrictive and piezoelectric compositesWan, J. G.; Or, Derek Siu-wing; Liu, J.-M.; Chan, Helen L. W.; Wang, G. H.; Nan, C. W.
16-Jun-2008Measurement of ultralow injection current to polymethyl-methacrylate filmYan, Feng; Hong, Yi; Chan, Helen L. W.
9-Sep-2002Mechanical properties related to the relaxor-ferroelectric phase transition of titanium-doped lead magnesium niobateBao, Peng; Yan, Feng; Li, W.; Dai, Y. R.; Shen, H. M.; Zhu, J. S.; Wang, Yening; Chan, Helen L. W.; Choy, Chung-loong
26-Oct-2010Method and apparatus for measuring oscillation amplitude of an ultrasonic deviceChan, Helen L. W.; Lam, Tin-yan; Chao, Chen; Kwok, Kin-wing
15-Mar-2002Microstructure and electric properties of lead lanthanum titanate thin film under transverse electric fieldsSong, Z. T.; Chan, Helen L. W.; Ding, Y. P.; Chong, Nui; Choy, Chung-loong
7-Dec-2006Microstructure and enhanced in-plane ferroelectricity of Ba[sub 0.7]Sr[sub 0.3]TiO₃ thin films grown on MgAl₂O₄ (001) single-crystal substrateZhou, Xiaoyuan; Heindl, T.; Pang, Geoffrey Kin-hung; Miao, Jun; Zheng, R. K.; Chan, Helen L. W.; Choy, Chung-loong; Wang, Yu
14-Apr-2005Microstructure of compositionally-graded (Ba[sub 1-x]Sr[sub x])TiO₃ thin films epitaxially grown on La[sub 0.5]Sr[sub 0.5]CoO₃-covered (100) LaAlO₃ substrates by pulsed laser depositionZhu, Xinhua; Chan, Helen L. W.; Choy, Chung-loong; Wong, Kin-hung; Hesse, Dietrich
2002Microstructure study of Bi₄Ti₃O₁₂ - SrBi₄Ti₄O[sub 15] and Bi[sub 3.25]La[sub 0.75]Ti₃O₁₂ - SrBi₄Ti₄O[sub 15] ceramicsSu, D.; Zhu, J. S.; Wang, Danyang; Chan, Helen L. W.; Choy, Chung-loong; Wang, Yening
3-Aug-2007Microstructure, phase transition, and electrical properties of (K[sub 0.5]Na[sub 0.5])[sub 1-x]Li[sub x](Nb[sub 1-y]Ta[sub y])O₃ lead-free piezoelectric ceramicsLin, Dunmin; Kwok, Kin-wing; Chan, Helen L. W.
15-Nov-2004Microwave characterization of (Pb,La)TiO₃ thin films integrated on ZrO₂/SiO₂/Si wafers by sol-gel techniquesSong, Z. T.; Wang, Yu; Chan, Helen L. W.; Choy, Chung-loong; Feng, S. L.
15-May-2004Mn and Sm doped lead titanate ceramic fibers and fiber/epoxy 13 compositesLi, Kun; Pang, Geoffrey Kin-hung; Chan, Helen L. W.; Choy, Chung-loong; Li, Jinhua
15-Oct-2001Mode coupling in lead zirconate titanate/epoxy 1-3 piezocomposite ringsOr, Derek Siu-wing; Chan, Helen L. W.
2005Modeling and analysis of piezoelectric transformer using multi-mesh loop matrix circuit under square-wave excitation conditionsCheng, K. W. Eric; Ho, Y. L.; Ho, Siu-lau; Kwok, Kin-wing; Wang, X. X.; Chan, Helen L. W.; Xue, Xiangdang
24-Mar-2004Monte Carlo simulation of the dielectric susceptibility of Ginzburg-Landau mode relaxorsLiu, J.-M.; Wang, X.; Chan, Helen L. W.; Choy, Chung-loong
15-Apr-2004Monte Carlo simulation on dielectric and ferroelectric behaviors of relaxor ferroelectricsWang, X.; Liu, J.-M.; Chan, Helen L. W.; Choy, Chung-loong
15-Nov-2008Multiferroic properties of Ni₀.₅Zn₀.₅Fe₂O₄–Pb(Zr₀.₅₃Ti₀.₄₇)O₃ ceramic compositesZhang, Hongfang; Or, Derek Siu-wing; Chan, Helen L. W.
1-Jun-2011Multiferroism in orientational engineered (La, Mn) co-substituted BiFeO₃ thin filmsWang, D. Y.; Chan, N. Y.; Zheng, R. K.; Kong, C.; Lin, Dunmin; Dai, Jiyan; Chan, Helen L. W.; Li, S.
1-Nov-2010Nonstoichiometric BiFe₀.₉Ti₀.₀₅O₃multiferroic ceramics with ultrahigh electrical resistivityGu, Yan Hong; Wang, Yu; Chen, Feng; Chan, Helen L. W.; Chen, Wanping
2001A novel process for preparing PZT thick filmsDing, A. L.; He, X. Y.; Qui, P. S.; Wang, S. J.; Luo, W. G.; Chan, Helen L. W.; Wang, P.; Choy, Chung-loong
21-Apr-2008One-dimensional tunable ferroelectric photonic crystals based on Ba[sub 0.7]Sr[sub 0.3]TiO₃/MgO multilayer thin filmsJim, K. L.; Wang, Danyang; Leung, Dennis Chi-wah; Choy, Chung-loong; Chan, Helen L. W.
8-Feb-2010Optical and electro-optic anisotropy of epitaxial Ba₀.₇7Sr₀.₃TiO₃ thin filmsWang, D. Y.; Li, S.; Chan, Helen L. W.; Choy, Chung-loong
1-Aug-2004Optical properties of (1-x)Pb(Mg₁/₃Nb₂/₃)O₃-xPbTiO₃single crystals studied by spectroscopic ellipsometryWan, Xinming; Chan, Helen L. W.; Choy, Chung-loong; Zhao, Xiangyong; Luo, Haosu
2-Aug-2006Optical properties of epitaxial and polycrystalline Sr[sub 1.8]Ca[sub 0.2]NaNb[sub 5]O[sub 15] thin-film waveguides grown by pulsed laser depositionLiu, W. C.; Mak, Chee-leung; Wong, Kin-hung; Wang, Danyang; Chan, Helen L. W.
30-Dec-2010Optofluidic microcavities : dye-lasers and biosensorsChen, Yong; Lei, Lei; Zhang, K.; Shi, J.; Wang, L.; Li, H.; Zhang, Xuming; Wang, Yu; Chan, Helen L. W.