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PolyU Institutional Repository >
Browsing by Author "Chan, Helen L. W."
Showing results 1 to 80 of 245
| Issue Date | Title | Author(s) | | 1-Dec-2004 | Abnormal phase transitions for tetragonal (1-x)Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-xPbTiO₃ single crystals at low temperature | Wan, Xinming; Zheng, R. K.; Chan, Helen L. W.; Choy, Chung-loong; Zhao, Xiangyong; Luo, Haosu |
| 18-Dec-2006 | Additional dc magnetic field response of magnetostrictive/piezoelectric magnetoelectric laminates by Lorentz force effect | Jia, Yanmin; Tang, Yanxue; Zhao, Xiangyong; Luo, Haosu; Or, Derek Siu-wing; Chan, Helen L. W. |
| 1-May-2009 | All wavelengths and directions hybrid-guidance photonic crystal fiber and its property of Bragg grating resonance | Zhang, Huijia; Li, Shuguang; Leung, Dennis Chi-wah; Chan, Helen L. W. |
| 12-May-2003 | Ambient-temperature incorporated hydrogen in Nb:SrTiO₃ single crystals | Dai, Jiyan; Chen, W. P.; Pang, Geoffrey Kin-hung; Lee, P. F.; Lam, H. K.; Wu, Wenbin; Chan, Helen L. W. |
| 2002 | Analysis of the resonance modes of PZT/epoxy 1-3 composite rings | Chong, Chi-po; Chan, Helen L. W.; Chan, M. H.; Liu, P. C. K. |
| 15-Apr-2010 | Anisotropy of the electrical transport properties in a Ni₂MnGa single crystal: Experiment and theory | Zeng, Min; Cai, Meng-Qiu; Or, Derek Siu-wing; Chan, Helen L. W. |
| May-2011 | Broad-band and high-temperature ultrasonic transducer fabricated using a Pb(In[sub ½]Nb[sub ½])-Pb(Mg[sub ⅓]Nb[sub ⅔])-PbTiO₃ single crystal/epoxy 1–3 composite | Zhou, Dan; Cheung, Kwok Fung; Lam, Kwok-ho; Chen, Y.; Chiu, Yat Ching; Dai, Jiyan; Chan, Helen L. W.; Luo, Haosu |
| Apr-2011 | Changing the scattering of sheltered targets | Luo, Yang; He, Lianxing; Wang, Yu; Chan, Helen L. W.; Zhu, Shou-Zheng |
| Feb-2002 | Characterization of (0.4)Pb₂(In,Nb)O[sub 6]:(0.6)Pb(Mg[sub ⅓]Nb[sub ⅔])O₃ relaxor ceramics | Baba-Kishi, K. Z.; Tai, Cheuk-wai; Wang, Jie; Choy, Chung-loong; Chan, Helen L. W.; Bhalla, A. S. |
| 2001 | Characterization of piezoelectric ring used for wire bonding transducer application | Cheng, Kei-chun; Chan, Helen L. W. |
| 25-Jan-2007 | Characterization of proton irradiated copolymer thin films for microelectromechanical system applications | Lam, Tin-yan; Lau, Sien Ting; Chao, Chen; Chan, Helen L. W.; Choy, Chung-loong; Cheung, W. Y.; Wong, S. P. |
| 22-Oct-2012 | Coaction and competition between the ferroelectric field effect and the strain effect in Pr₀.₅Ca₀.₅MnO₃ film/0.67Pb(Mg[sub 1/3]Nb[sub 2/3])O₃-0.33PbTiO₃ crystal heterostructures | Zhu, Q. X.; Wang, W.; Yang, S. W.; Li, X. M.; Wang, Yu; Habermeier, H.-U.; Luo, H. S.; Chan, Helen L. W.; Li, X. G.; Zheng, R. K. |
| 17-Dec-2010 | Control of the strain and magnetoresistance of LaMnO[sub 3+δ] thin films using the magnetostriction of Terfenol-D alloy | Zheng, R. K.; Wang, Yu; Chan, Helen L. W.; Choy, Chung-loong; Luo, Haosu |
| 14-Jun-2006 | Converse magnetoelectric effect in laminated composites of PMN-PT single crystal and Terfenol-D alloy | Jia, Yanmin; Or, Derek Siu-wing; Chan, Helen L. W.; Zhao, Xiangyong; Luo, Haosu |
| 24-Apr-2007 | Converse magnetoelectric effect in three-phase composites of piezoceramic, metal cap, and magnet | Wong, Wai-yin; Or, Derek Siu-wing; Chan, Helen L. W.; Jia, Yanmin; Luo, Haosu |
| 17-Jan-2007 | Converse piezoelectric control of the lattice strain and resistance in Pr[sub 0.5]Ca[sub 0.5]MnO₃/PMN-PT structures | Zheng, R. K.; Chao, Chen; Chan, Helen L. W.; Choy, Chung-loong; Luo, Haosu |
| 9-Dec-2002 | Cooling-rate-dependent dielectric properties of (Pb(Mg[sub ⅓]Nb[sub ⅔]) O₃)0.67(PbTiO₃)0.33 single crystals in ferroelectric phase | Yan, Feng; Bao, Peng; Wang, Yening; Chan, Helen L. W.; Choy, Chung-loong |
| 1-May-2010 | dc- and ac-magnetic field-induced strain effects in ferromagnetic shape memory composites of Ni–Mn–Ga single crystal and polyurethane polymer | Zeng, Min; Or, Derek Siu-wing; Chan, Helen L. W. |
| 17-Mar-2006 | dc bias-induced dielectric anomalies in <111>-oriented 0.9Pb(Mg[sub ⅓]Nb[sub ⅔]O₃)-0.1PbTiO₃ single crystals | Wang, Jie; Jia, Yanmin; Zheng, R. K.; Chan, Helen L. W.; Zhao, X.; Luo, Haosu |
| 13-Mar-2007 | Depolarization of a piezoelectric film under an alternating current field | Kwok, Kin-wing; Cheung, M. K.; Chan, Helen L. W.; Choy, Chung-loong |
| 1999 | Determination of polarisation profiles in P(VDF-TrFE) films with LIMM and LITP | Ploss, Bernd; Chan, Helen L. W.; Wong, Yuen-wah; Choy, Chung-loong |
| 1996 | Determination of the polarization distribution in poled ferroelectric polymer by the thermal pulse method | Yang, G. W.; Wong, Yuen-wah; Chan, Helen L. W.; Choy, Chung-loong |
| 5-Jun-2007 | Determination of the strain dependence of resistance in La[sub 0.7]Sr[sub 0.3]MnO₃/PMN-PT using the converse piezoelectric effect | Zheng, R. K.; Wang, Yu; Chan, Helen L. W.; Choy, Chung-loong; Luo, Haosu |
| 1999 | Detrapping behavior of trapped space charges in ferroelectric copolymers of vinylidene fluoride with trifluoroethylene | Zhang, Xingyuan; Peng, Zhi; Chan, Helen L. W.; Choy, Chung-loong |
| 1-Aug-2009 | Dielectric and piezoelectric properties of K₀.₅ Na₀.₅ NbO₃-AgSbO₃lead-free ceramics | Lin, Dunmin; Kwok, Kin-wing; Chan, Helen L. W. |
| 4-Oct-2007 | Dielectric and piezoelectric properties of (K[sub 0.5]Na[sub 0.5])NbO₃-Ba(Zr[sub 0.05]Ti[sub 0.95])O₃ lead-free ceramics | Lin, Dunmin; Kwok, Kin-wing; Chan, Helen L. W. |
| 25-Apr-2006 | Dielectric and tunable properties of K-doped Ba[sub 0.6]Sr[sub 0.4]TiO₃ thin films fabricated by sol-gel method | Sun, Xiaohua; Zhu, Bailin; Liu, Tao; Li, Meiya; Zhao, Xingzhong; Wang, Danyang; Sun, Chengliang; Chan, Helen L. W. |
| 28-Apr-2005 | Dielectric behavior and microstructure of (Bi[sub ½]Na[sub ½])TiO₃-(Bi[sub ½]K[sub ½])TiO₃-BaTiO₃ lead-free piezoelectric ceramics | Wang, X. X.; Choy, Siu-hong; Tang, Xingui; Chan, Helen L. W. |
| 15-Jun-2009 | Dielectric behavior and phase transition in perovskite oxide Pb(Fe[sub ½]Nb[sub ½])[sub 1−x]Ti[sub x]O₃ single crystal | Jia, Yanmin; Luo, Haosu; Or, Derek Siu-wing; Wang, Yu; Chan, Helen L. W. |
| 8-Aug-2008 | Dielectric dispersion behavior of Ba(Zr[sub x]Ti[sub 1-x])O₃ solid solutions with a quasiferroelectric state | Ke, Shanming; Fan, Huiqing; Huang, Haitao; Chan, Helen L. W.; Yu, Shuhui |
| 17-Jul-2008 | Dielectric, ferroelectric properties, and grain growth of Ca[sub x]Ba[sub 1-x]Nb₂O[sub 6] ceramics with tungsten-bronzes structure | Ke, Shanming; Fan, Huiqing; Huang, Haitao; Chan, Helen L. W.; Yu, Shuhui |
| Apr-2000 | Dielectric permittivity of PCLT/PVDF-TRFE nanocomposites | Chan, Helen L. W.; Zhang, Qingqi; Ng, W. Y.; Choy, Chung-loong |
| 3-Oct-2006 | Dielectric properties and abnormal C-V characteristics of Ba[sub 0.5]Sr[sub 0.5]TiO₃-Bi[sub 1.5]ZnNb[sub 1.5]O[sub 7] composite thin films grown on MgO (001) substrates by pulsed laser deposition | Tian, Huyong; Wang, Yu; Wang, Danyang; Miao, Jun; Qi, Jianquan; Chan, Helen L. W.; Choy, Chung-loong |
| 1-Dec-2004 | Dielectric properties of barium titanate ceramics doped by B₂O₃ vapor | Qi, Jianquan; Chen, W. P.; Wang, Yu; Chan, Helen L. W.; Li, Longtu |
| 7-Apr-2005 | Dielectric relaxation and electrical properties of 0.94Pb(Fe[sub ½]Nb[sub ½])O₃-0.06PbTiO₃ single crystals | Wang, Jie; Tang, Xingui; Chan, Helen L. W.; Choy, Chung-loong; Luo, Haosu |
| 8-Feb-2008 | Dielectric relaxation in polyimide nanofoamed films with low dielectric constant | Zhang, Yihe; Ke, Shanming; Huang, Haitao; Zhao, Lihang; Yu, Li; Chan, Helen L. W. |
| 9-Aug-2004 | Dielectric tunability of (Ba[sub 0.90]Ca[sub 0.10])(Ti[sub 0.75]Zr[sub 0.25])O₃ ceramics | Tang, Xingui; Chew, K.-H.; Wang, Jie; Chan, Helen L. W. |
| 23-Jul-2011 | Direct synthesis of ultrafine tetragonal BaTiO₃ nanoparticles at room temperature | Qi, Jianquan; Peng, Tao; Hu, Yongming; Sun, Li; Wang, Yu; Chen, Wanping; Li, Long-tu; Nan, C. W.; Chan, Helen L. W. |
| 27-Apr-2005 | Domain structure and evolution in (PbMg[sub ⅓]Nb[sub ⅔]O₃)[sub 0.75](PbTiO₃)[sub 0.25] single crystal studied by temperature-dependent piezoresponse force microscopy | Zhao, X.; Dai, Jiyan; Wang, Jie; Chan, Helen L. W.; Choy, Chung-loong; Wan, X. M.; Luo, Haosu |
| 4-Jun-2007 | Double hysteresis loop in Cu-doped K[sub 0.5]Na[sub 0.5]NbO₃ lead-free piezoelectric ceramics | Lin, Dunmin; Kwok, Kin-wing; Chan, Helen L. W. |
| 9-Dec-2008 | Driver for an ultrasonic transducer and an ultrasonic transducer | Or, Derek Siu-wing; Yung, Chung-sheung; Chan, Helen L. W. |
| 16-May-2005 | Dynamic magnetomechanical properties of Terfenol-D/epoxy pseudo 1-3 composites | Or, Derek Siu-wing; Li, Tongle; Chan, Helen L. W. |
| Nov-1998 | Dynamics of an ultrasonic transducer used for wire bonding | Or, Derek Siu-wing; Chan, Helen L. W.; Lo, Veng-cheong; Yuen, C. W. |
| 5-Oct-2006 | Effect of CaRuO₃ interlayer on the dielectric properties of Ba(Zr,Ti)O₃ thin films prepared by pulsed laser deposition | Tang, Xingui; Tian, Huyong; Wang, Jie; Wong, Kin-hung; Chan, Helen L. W. |
| 1-Apr-2005 | Effect of dc bias on the Curie-Weiss exponent in 0.76Pb(Mg[sub ⅓]Nb[sub ⅔]) O₃-0.24PbTiO₃ ferroelectric single crystal | Lu, S. G.; Xu, Z. K.; Chen, Haydn; Zhao, Xiangyong; Luo, Haosu; Wang, Jie; Chan, Helen L. W.; Choy, Chung-loong |
| 1998 | Effect of dielectric relaxation on the performance of P(VDF-TrFE) copolymer ultrasonic transducers | Kwok, Kin-wing; Chan, Helen L. W.; Choy, Chung-loong |
| 11-Sep-2000 | Effect of electron irradiation on poly(vinylidene fluoride-trifluoroethylene) copolymers | Tang, Yiwen; Zhao, Xingzhong; Chan, Helen L. W.; Choy, Chung-loong |
| 1-Sep-2009 | Effect of ferroelectric-poling-induced strain on the phase separation and magnetotransport properties of La₀.₇Ca₀.₁₅Sr₀.₁₅MnO₃thin films grown on ferroelectric single-crystal substrates | Zheng, R. K.; Habermeier, H.-U.; Chan, Helen L. W.; Choy, Chung-loong; Luo, Haosu |
| 9-Mar-2005 | The effect of Fe substitution on pyroelectric properties of 0.62Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-0.38PbTiO₃ single crystals | Wan, Xinming; Chew, K.-H.; Chan, Helen L. W.; Choy, Chung-loong; Zhao, Xiangyong; Luo, Haosu |
| 6-Jan-2005 | Effect of grain size on the electrical properties of (Ba,Ca)(Zr,Ti)O₃ relaxor ferroelectric ceramics | Tang, Xingui; Chan, Helen L. W. |
| 1-Mar-2009 | The effect of magnetic nanoparticles on the morphology, ferroelectric, and magnetoelectric behaviors of CFO/P(VDF-TrFE) 0–3 nanocomposites | Zhang, Jinxing; Dai, Jiyan; So, L. C.; Sun, Chengliang; Lo, Ching-yin; Or, Derek Siu-wing; Chan, Helen L. W. |
| 3-May-2010 | Effect of phase transformation on the converse magnetoelectric properties of a heterostructure of Ni ₄₉.₂Mn₂₉.₆Ga₂₁.₂ and 0.7PbMg ₁/₃Nb₂/₃O₃-0.3PbTIO₃crystals | Zeng, Min; Or, Derek Siu-wing; Chan, Helen L. W. |
| 17-May-1999 | Effect of poling procedure on the properties of lead zirconate titanate/vinylidene fluoride-trifluoroethylene composites | Chan, Helen L. W.; Ng, P. K. L.; Choy, Chung-loong |
| 1996 | Effect of target material on the laser induced pressure pulse measurements for thick P(VDF-TrFE) copolymers | Zhang, Y.; Chan, Helen L. W.; Choy, Chung-loong |
| 26-Oct-2005 | Effects of Ca doping on the Curie temperature, structural, dielectric, and elastic properties of Ba[sub 0.4]Sr[sub 0.6-x]Ca[sub x]TiO₃ (0≤x≤0.3) perovskites | Zheng, R. K.; Wang, Jie; Tang, Xingui; Wang, Yu; Chan, Helen L. W.; Choy, Chung-loong; Li, X. G. |
| 28-Jun-2006 | Effects of ferroelectric polarization and converse piezoelectric effect induced lattice strain on the electrical properties of La[sub 0.7]Sr[sub 0.3]MnO₃ thin films | Zheng, R. K.; Wang, Jie; Zhou, Xiaoyuan; Wang, Yu; Chan, Helen L. W.; Choy, Chung-loong; Luo, Haosu |
| 1-Sep-2010 | Effects of ferroelectric-poling-induced strain on the quantum correction to low-temperature resistivity of manganite thin films | Jia, R. R.; Zhang, J. C.; Zheng, R. K.; Deng, D. M.; Habermeier, H.-U.; Chan, Helen L. W.; Luo, Haosu; Cao, S. X. |
| 1-Aug-2010 | Effects of ferroelectric-poling-induced strain on the transport and magnetic properties of La₇ /₈Ba₁/₈MnO₃thin films | Zheng, R. K.; Wang, Yu; Chan, Helen L. W.; Choy, Chung-loong; Habermeier, H.-U.; Luo, Haosu |
| 1-Feb-2004 | Effects of niobium doping on the piezoelectric properties of sol-gel-derived lead-zirconate-titanate films | Kwok, Kin-wing; Tsang, Chin-wah Rodney; Chan, Helen L. W.; Choy, Chung-loong |
| 1-Mar-2010 | Effects of substrate-induced strain on transport properties of LaMnO[sub 3+δ] and CaMnO₃ thin films using ferroelectric poling and converse piezoelectric effect | Zheng, R. K.; Habermeier, H.-U.; Chan, Helen L. W.; Choy, Chung-loong; Luo, H. S. |
| 30-Jul-2001 | Electrical and pyroelectric properties of in-plane polarized lead lanthanum titanate thin film | Song, Z. T.; Chong, Nui; Chan, Helen L. W.; Choy, Chung-loong |
| 5-Jul-2004 | Electromechanical and ferroelectric properties of (Bi[sub ½]Na[sub ½])TiO₃-(Bi[sub ½]K[sub ½])TiO₃-BaTiO₃ lead-free piezoelectric ceramics | Wang, X. X.; Tang, Xingui; Chan, Helen L. W. |
| 1-Jul-1994 | Electromechanical properties of 1-3 piezoelectric ceramic/piezoelectric polymer composites | Taunaumang, H.; Guy, I. L.; Chan, Helen L. W. |
| 2001 | Electron irradiation effects in electrostrictive P(VDF-TrFE) copolymers | Tang, Y. W.; Zhao, X.-Z.; Chan, Helen L. W.; Choy, Chung-loong |
| 12-Mar-2007 | Energy harvesting with piezoelectric drum transducer | Wang, Sheng; Lam, Kwok-ho; Sun, Chengliang; Kwok, Kin-wing; Chan, Helen L. W.; Guo, Mingsen; Zhao, Xingzhong |
| 6-Dec-2006 | Enhanced dielectric properties of highly (100)-oriented Ba(Zr,Ti)O₃ thin films grown on La[sub 0.7]Sr[sub 0.3]MnO₃ bottom layer | Tang, Xingui; Liu, Q. X.; Jiang, Y. P.; Zheng, R. K.; Chan, Helen L. W. |
| 22-Nov-2010 | Enhanced ferroelectric and piezoelectric properties in doped lead-free (Bi₀. ₅Na₀. ₅) ₀. ₉ ₄ Ba₀. ₀ ₆ TiO ₃ thin films | Wang, D. Y.; Chan, N. Y.; Li, S.; Choy, Siu-hong; Tian, H. Y.; Chan, Helen L. W. |
| 17-May-2005 | Enhanced in-plane ferroelectricity in Ba[sub 0.7]Sr[sub 0.3]TiO₃ thin films grown on MgO (001) single-crystal substrate | Wang, Danyang; Wang, Yu; Zhou, Xiaoyuan; Chan, Helen L. W.; Choy, Chung-loong |
| 15-Jan-2011 | Enhanced magnetoelectric effect in a stress-biased lead magnesium niobate-lead titanate single crystal/Terfenol-D alloy magnetoelectric sensor | Lam, Kwok-ho; Lo, Ching-yin; Dai, Jiyan; Chan, Helen L. W.; Luo, Haosu |
| 23-Jun-2008 | Enhanced magnetoelectric effect in longitudinal-transverse mode Terfenol-D/Pb(Mg[sub ⅓]Nb[sub ⅔])O₃-PbTiO₃ laminate composites with optimal crystal cut | Wang, Yaojin; Or, Derek Siu-wing; Chan, Helen L. W.; Zhao, Xiangyong; Luo, Haosu |
| 1994 | Enhancement of piezoelectric activity in P(VDF-TrFE) copolymer using two-step poling | Chan, Helen L. W.; Zhao, Z.; Kwok, Kin-wing; Choy, Chung-loong |
| 6-May-2002 | Epitaxial growth and planar dielectric properties of compositionally graded (Ba[sub 1-x]Sr[sub x])TiO₃ thin films prepared by pulsed-laser deposition | Zhu, Xinhua; Chong, Nui; Chan, Helen L. W.; Choy, Chung-loong; Wong, Kin-hung; Liu, Zhiguo; Ming, Naiben |
| Mar-2008 | Epitaxial growth, dielectric response, and microstructure of compositionally graded (Ba,Sr)TiO₃ thin films grown on (100) MgO substrates by pulsed laser deposition | Zhu, Xinhua; Zhu, Jianmin; Zhou, Shunhua; Liu, Zhiguo; Ming, Naiben; Chan, Helen L. W.; Choy, Chung-loong; Wong, Kin-hung |
| 3-Jan-2007 | Epitaxial growth of SrTiO₃ thin film on Si by laser molecular beam epitaxy | Zhou, Xiaoyuan; Miao, Jun; Dai, Jiyan; Chan, Helen L. W.; Choy, Chung-loong; Wang, Yu; Li, Q. |
| 15-Jul-2003 | Epitaxial growth of yttrium-stabilized HfO₂ high-k gate dielectric thin films on Si | Dai, Jiyan; Lee, P. F.; Wong, Kin-hung; Chan, Helen L. W.; Choy, Chung-loong |
| Jul-1997 | Evaluation of the material parameters of piezoelectric materials by various methods | Kwok, Kin-wing; Chan, Helen L. W.; Choy, Chung-loong |
| 20-Mar-2006 | Fabrication and characterization of epitaxial Ba₀.₇Sr₀.₃TiO₃ thin films for optical waveguide applications | Wang, Dan-Yang; Chan, Helen L. W.; Choy, Chung-loong |
| 19-Jun-2007 | Fabrication and characterization of Ni/P(VDF-TrFE) nanoscaled coaxial cables | Sun, Chengliang; Lam, Kwok-ho; Chao, Chen; Lau, Sien Ting; Chan, Helen L. W.; Guo, Shishang; Zhao, Xingzhong |
| 3-Feb-2007 | Fabrication of CuO nanoparticle interlinked microsphere cages by solution method | Qi, Jianquan; Tian, Huyong; Li, Longtu; Chan, Helen L. W. |
| 2002 | Fabrication of multilayer ring transformer | Wong, Nga-yan; Chan, Helen L. W.; Choy, Chung-loong |
Showing results 1 to 80 of 245
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