As a fundamental science, physics presents major challenges to the human mind, and the principles of physics serve as a foundation for engineering and other sciences. The new technologies that physics has spawned are so ingrained in our civilization that their scientific origins are often overlooked. The discoveries of the principles of solid-state transistors, which led to the miniaturization of electronic devices, or atomic hyperfine structure and superconductivity, which made possible nuclear magnetic resonance (NMR) imaging, and of the laser, which underpins present-day information technology are but a few examples. In addition to directly generating technological innovation, physics are indirectly supports progress throughout society by providing tools with which people in other fields create innovations.
Of all areas, condensed matter physics (CMP) and optical physics have the greatest impact on our daily lives. It is thus natural that the Department places research emphasis on these fields. Programs include both experimental and theoretical aspects of linear and non-linear optics, low-dimensional systems, mesoscopic systems, microstructured and nanostructured materials, and surfaces and interfaces. A program of regular visiting faculty members and scholars in the other sepecialities helps ensure a breadth of coverage.
Facilities
A number of central service facilities and interdisciplinary research institutes provide support for the Department's research programs. Particularly relevant are the centers for Materials Characterization and Preparation, Microelectronic Fabrication, Com putting Services and Telecommunications, and the research institutes for Information Technology, Advanced Materials, Microsystems, and Scientific Computation. Facilities for scientific computation include optical-fibre distributive networks, various workstations, and a parallel processing computer. The Department has laboratories for laser physics, photonics, new thin-film
materials, surface/interface studies, solid state properties, polymers and liquid crystals, x-ray optics, semiconductor clusters, and non-linear dynamics. The Zheng Ge Ru Thin Film
Physics Laboratory, the Joyce M. Kuok Laser and Photonics Laboratory, and the William Mong Semiconductor Clusters Laboratory form a nucleus for HKUST's Advanced Materials Research Institute.
Professor and Associate Vice-President for Academic Affairs; Director, Office of Continuing
& Professional Education; Director, HKUST College of Lifelong Learning, Ltd..
PETER N DOBSON, JR
Professor and Associate Vice-President for Academic Affairs MICHAEL M LOY
Professor and Dean of Science GEORGE K L WONG
Professor; Director, Materials Characterization and Preparation Facility and Director, Liquid Helium Facility
CHIA-WEI WOO
Professor and President of the University MICHAEL S ALTMAN
Associate Professor CHE-TING CHAN
Associate Professor KWOK KWONG FUNG
Senior Lecturer WEIKUN GE
Senior Lecturer PAK-WO LEUNG
Associate Professor TAI-KAI NG
Associate Professor IAM KEONG SOU
Associate Professor KWOK-YIP SZETO
Associate Professor WING YIM TAM
Associate Professor JIANNONG WANG Associate Professor
XIANGRONG WANG
Associate Professor KAM-SING WONG
Associate Professor MICHAEL K Y WONG
Associate Professor XU-DONG XIAO
Assistant Professor ZHIYU YANG
Associate Professor ZHAO QING ZHANG
Associate Professor
BRADLEY A FOREMAN
Assistant Professor ZI KANG TANG
Lecturer
OPHELIA K C TSUI
Assistant Professor NING WANG
Assistant Professor WANG XUE-SEN
Assistant Professor YUQI WANG
Lecturer
WEI-JIA WEN
Assistant Professor ZHANG XIXIANG Assistant Professor
Research Profile
PING SHENG
Professor and Department Head (23587474; [email protected])
PhD, Princeton University (1971)
Visiting Scholar, Institute for Advanced Study, Princeton (1971-73)
Senior Research Associate, Exxon Research and Engineering Co (1979-95) Current Research Activities:
Physics of disordered materials; complex fluids; liquid crystals; wave localisation and multiple scattering; physics of composites.
Active Projects as Principal Investigator:
Nanostructured materials
AOE AOE97/98.SC01 HK$285,346 Apr 1998
Development of new liquid crystal display products and technologies ITC AF/175/98 HK$12,135,000 Jan 1999
Physics and chemistry of nanostructure materials CF ASI98/99.SC01 HK$600,000 Jan 1999
Emerging High Impact Area of Nanostructures HIA HIA98/99.SC01 HK$2,600,000 Jan 1999
China Program on CAS-HKUST joint institute on nanostructured materials CP CP98/99.SC02 HK$700,000 Apr 1999
China Program on collaboration with Zhejiang University CP CP98/99.SC03 HK$200,000 Apr 1999
Fifth international conference on the Electrical Transport and Optical Properties of Inhomogeneous Media (ETOPIM5)
CF CF98/99.SC02 HK$100,000 Jun 1999
The Fifth International Conference on the Electrical Transport and Optical Properties of Inhomogeneous Media (Etopim5)
KCWE KCWEF97/98.SC01 HK$75,000 Jun 1999
Elastic wave bandgap material with tunable scatterers DAG DAG99/00.SC30 HK$62,000 Nov 1999
CAS-UST nanostructure materials and technology joint lab CMI CMI99/00.SC04 HK$600,000 Apr 2000
Elastic Wave Bandgap From Tunable Scatterers CERG HKUST6143/00P HK$651,817 Sep 2000 Representative Recent Publications:
Dyrting, S., Fang, H.P., Szeto, K.Y. and Sheng, P. (1999) "Tunneling States in Tetrahedrally Bonded Amorphous Semiconductors", Europhysics Lett., 48, 403-409.
Wen, W., Wang, N., Ma, H., Lin, Z., Tam, W.Y., Chan, C.T. and Sheng, P. (1999) "Field Induced Structural Transition in Mesocrystallites", Phys. Rev. Lett., 82 (21): 4248-4251.
Yi, L. and Sheng, P. (2000) "Breit Interaction, Level Spacing Statistics and Far-infrared Absorption in Small Metal Clusters", Solid State Communications, 114, 177-192.
Zhang, W.Y., Lei, X.Y., Wang, Z.L., Zheng, D.G., Tam, W.Y., Chan, C.T. and Sheng, P.
(2000) "Robust Photonic Band Gap from Tunable Scatterers", Phys. Rev. Lett., 84, 2853-2856.
Zhou, L., Wen, W. and Sheng, P. (1998) "Ground States of Magnetorheological Fluids", Phys. Rev. Lett., 81, 1509-1512.
Liu, Z., Zhang, X., Mao, Y., Zhu, Y.Y., Yang, Z., Chan, C.T. and Sheng, P. (2000) "Locally Resonant Sonic Materials", Science, 289, 1734-1736.
LEROY L CHANG University Professor
(23586122; [email protected])
PhD, Stanford University (1963)
Manager, Quantum Structures, Molecular Beam Epitaxy, IBM T. J. Watson Research Center (1975-92)
Current Research Activities:
Semiconductor physics, materials, and devices.
NELSON CUE
Professor and Associate Vice-President for Academic Affairs;
Director, Office of Continuing & Professional Education; Director, HKUST College of Lifelong Learning, Ltd..
(23586282; [email protected])
PhD, University of Washington (1967)
Research Associate, State University of New York at Stony Brook (1968-70) Professor of Physics, State University of New York at Albany (1982-90) Chairman of Physics, State University of New York at Albany (1984-90) Current Research Activities:
X-ray optics; nanostructured materials; strong-field QED and coherent processes in aligned crystals; channeling of heavy ions; ion beam analysis; active learning.
Active Projects as Principal Investigator:
Transmission of fast charged particles through carbon nanotubes in zeolites and in etched ion tracks
F-HK F-HK98/99.SC04 HK$32,000 Mar 1999
Scanning tunneling microscopy of endohedral metallofullerenes G-HK G-HK99/00.SC03 HK$29,330 May 2000
Representative Recent Publications:
Lin, N., Huang, H.J., Yang, S.H. and Cue, N. (1998) "Nucleation of endohedral metallofullerene Nd@C82 on C60 films", Physical Review B, 58 (4): 2126-30.
Zhai, G.J., Yang, J.S., Cue, N. and Wang, X.S. (2000) "Surface Structures of Silicon Nitride Thin Films on Si(111)", Thin Solid Films, 366 (1-2): 121-128.
Chevallier, M., Cohen, C., Cue, N., Dauvergne, D., Dural, J., Gangnan, P., Kirsch, R. and L'hoir, A. (2000) "Upper-Limit Determination of Resonant Trielectronic Recombination Cross-Section for Krypton Using Crystal Channelling", Physical Review A, 61 (2):
022724/1-6.
Cue, N. (1999) "A Universal Learning Tool for Classrooms?", Quality in Teaching &
Learning in Higher Education, Hong Kong Polytechnic University, HK, 186-191. [ISBN 962-367-267-5].
Wang, K.M., Shi, B.R, Cue, N. Meng, M.Q., Lu, F., Wang, F.X., Li, W. and Shen, D.Y.
(2000) "Range straggling and lateral spread of MeV Au+ ions in LiB3O5 and SiN1.375H0.625", Journal of Physics D: Applied Physics, 33: 1764-1767.
Wang, K.M., Hu, H., Chen, F., Shi, B.R., Cue, N., Wong, P.C.L., Wong, C.Y.C and Shen, D.Y (2000) "Concentration profile of MeV Ni+ ions in LiNbO3 and KTiOPO4 determined
by SIMS.", Solid State Communications, 166: 551-555.
PETER N DOBSON, JR
Professor and Associate Vice-President for Academic Affairs (23586281; [email protected])
PhD, University of Maryland (1965)
Professor of Physics, University of Hawaii at Manoa (1975-1991)
Assistant Vice-President for Academic Affairs, University of Hawaii (1981-1985) Current Research Activities:
Theoretical high energy physics; quantum field theory, relativistic stellar models.
Representative Recent Publications:
Mak, M.K., Dobson, P.N. and Harko, T. (2000) "Maximum Mass-Radius Ratio for Compact General Relativistic Objects in Schwarzschild-de Sitter Geometry", Mod. Phy. Lett. A, vol.
15, no. 35, 2153-2158.
MICHAEL M LOY
Professor and Dean of Science (23587267; [email protected])
PhD, University of California, Berkeley (1971)
Research Staff Member and Manager, IBM Research (1971-86)
Technical Planning Staff for Director of Research, IBM Research (1986-87) Senior Manager, IBM Research (1987-93)
Current Research Activities:
Nonlinear optical propagation effects; two-photon coherent transients; nonlinear optical studies of surfaces; state-selective studies of molecule-surface interactions.
Active Projects as Principal Investigator:
Coastal marine science facilities
RCA CA97/98.SC01 HK$2,300,000 Jul 1998
Development of new liquid crystal display products and technologies
ITC AF/175/98 HK$12,135,000 Jan 1999
Hydrogen Diffusion On Stepped Pt (111) Surfaces CERG HKUST6147/99P HK$405,000 Dec 1999
GEORGE K L WONG
Professor; Director, Materials Characterization and Preparation Facility and Director, Liquid Helium Facility
(23587471; [email protected])
PhD, University of California, Berkeley (1974)
Research Associate, University of California, Berkeley (1974) Professor of Physics, Northwestern University (1989-96) Current Research Activities:
Nonlinear optics; optical properties of quantum wells and superlattices; nanostructures of semiconductors, ferroelectrics, polymers, and organic materials.
Active Projects as Principal Investigator:
Microstructure-enhanced Large Third-order Optical Nonlinearity In Metal Nanocluster-doped Dielectric Composite Films
CERG HKUST6153/00P HK$533,817 Sep 2000 Representative Recent Publications:
Guo, L., Yang, S., Yang, C., Wang, J., Ge, W.K. and Wong, G.K.L. (2000) "Highly mondisperse polymer-capped ZnO nanoparticles: Preparation and optical properties", Applied Physics Letters, 76 (20): 2901-3.
Ma, Z.H., Sou, I.K., Wong, K.S., Yang, Z. and Wong, G.K.L. (1998) "ZnSTe-based
Schottky Barrier Ultraviolet Detectors With Nanosecond Response Time", Applied Physics Letters, 73 (16): 2251.
Ma, Z.H., Sun, W.D., Sou, I.K. and Wong, G.K.L. (1998) "Atomic Force Microscopy Studies of ZnSe Self-organized Dots Fabricated on ZnS/GaP", Applied Physics Letters, 73 (10): 1340.
Sou, I.K., Ma, Z.H. and Wong, G.K.L. (1999) "Photoresponse studies of ZnSSe
visible-blind ultraviolet detectors: A comparison to ZnSTe detectors", Applied Physics Letters, 75 (23): 3707-9.
Wong, K.S., Wang, H., Yang, Z., Sou, I.K. and Wong, G.K.L. (1999) "ZnSe/GaAs Interface State Probed by Time-resolved Reflectance Difference Spectroscopy", Applied Physics Letters, 74 (24): 3663.
Zhang, W., Wang, H., Wong, K.S., Tang, Z.K., Wong, G.K.L. and Jain, R. (1999)
"Third-order optical nonlinearity in ZnO microcrystallite thin films", Applied Physics Letters, 75 (21): 3321-3.
CHIA-WEI WOO
Professor and President of the University (23586102; [email protected])
PhD, Washington University (1966)
Asst Research Physicist, University of California, San Diego (1966-68)
Provost and Professor of Physics, University of California, San Diego (1979-83) President and Professor of Physics, San Francisco State University (1983-88) Current Research Activities:
Quantum many-body theory; low temperature physics; surface physics; liquid crystals;
technology transfer and economic development.
MICHAEL S ALTMAN Associate Professor
(23587478; [email protected])
PhD, Brown University (1988)
Alexander von Humboldt Research Fellow, Technische Universität Clausthal (1988-90) Visiting Scientist, IBM Almaden Research Center (1990-91)
Current Research Activities:
Surface physics; epitaxial growth; low energy electron microscopy and diffraction; field emission.
Active Projects as Principal Investigator:
The quantum size effect in electron reflectivity from thin films CERG HKUST6129/98P HK$435,000 Nov 1998
Spin Polarized Vacuum Tunneling From Magnetic Thin Films CERG HKUST6137/00P HK$419,817 Nov 2000
Representative Recent Publications:
Altman, M.S., Chung, W.F. and Liu, C.H. (1998) "LEEM Phase Contrast", Surface Review and Letters, 5 (6): 1129-1141.
Altman, M.S., Chung, W.F., He, Z.Q., Poon, H.C. and Tong, S.Y. (2001) "Quantum Size Effect in Low Energy Electron Diffraction from Thin Films", Applied Surface Science, vol.
169/170, 81-86.
Chung, W.F. and Altman, M.S. (1998) "Step Contrast in Low Energy Electron Microscopy", Ultramicroscopy, 74 (4): 237-246.
Wu, D., Lau, W.K., He, Z.Q., Feng, Y.J., Altman, M.S. and Chan, C.T. (2000) "Ordered Alloying of Pd with the Mo(100) Surface", Physical Review B, 62(12): 8366-8375.
Bartos, I., Van Hove, M.A., Chung, W.F., He, Z.Q. and Altman, M.S. (1998) "Ag(111) Electron Band Structure and Channeling by VLEED", Surface Science, 402-404: 697-700.
Poon, H.C., Tong, S.Y., Chung, W.F. and Altman, M.S. (1998) "Low Energy Electron Diffraction Analysis of Ultrathin Ag Films on W(110)", Surface Review and Letters, 5 (6):
1143-1149.
CHE-TING CHAN Associate Professor
(23587487; [email protected])
PhD, University of California, Berkeley (1985)
Postdoctoral Fellow, Ames Laboratory-USDOE (1986-88) Physicist, Ames Laboratory-USDOE (1992-95)
Current Research Activities:
Application of first principles in studying the electronic, structural, and other physical properties of matter; surface physics; photonic band gaps.
Active Projects as Principal Investigator:
Effect of external electric field and surface charging on surface properties CERG HKUST6128/98P HK$645,000 Sep 1998
Emerging High Impact Area of Computational Science HIA HIA98/99.SC04 HK$1,840,000 Jan 1999
Optical Properties Of Self-assembled Photonic Band Gap Systems Consisting Of Multiply-coated Particles
CERG HKUST6145/99P HK$603,000 Oct 1999
Multiple-scattering Theory In Real Space And The Quantitative Theory Of Photo-induced Interactions
CERG HKUST6138/00P HK$631,817 Oct 2000 Representative Recent Publications:
Che, J.G., Zhu, Z.Z. and Chan, C.T. (1999) "Change of ground state configuration induced by the Stark shift of surface states in some bcc(001) surfaces", Physical Review Letters, 82 (16): 3292-5.
Liu, Z.Y., Zhang, X.X., Mao, Y., Zhu, Y.Y., Yang, Z., Chan, C.T. and Sheng, P. (2000)
"Subwavelength sonic bandgap material", Science, 28, 1734.
Wen, W., Wang, N., Ma, H., Lin, Z., Tam, W.Y., Chan, C.T. and Ping, S. (1999) "Field induced structural transition in mesocrystallites", Physical Review Letters, 82 (21): 4248-51.
Zhang, W.Y., Lei, X.Y., Wang, Z.L., Zheng, D.G., Tam, W.Y., Chan, C.T. and Sheng, P.
(2000) "Robust Photonic band gap from tunable scatterers", Physical Review Letters, 84 (13): 2853-6.
K. Deng, Yang, J.L. and Chan, C.T. (2000) "Calculated polarizabilities of small Si clusters", Physical Review A, 61 (2): 025201/1-4.
Cheng, S.S.M., Li, L.M., Chan, C.T. and Zhang, Z.Q. (1999) "Defect and transmission properties of two dimensional quasi-periodic photonic band gap systems", Physical Review B, 59: 4901-4099.
KWOK KWONG FUNG Senior Lecturer
(23587473; [email protected])
PhD, University of Bristol (1979)
Research Professor and Deputy Director, Beijing Laboratory of Electron Microscopy (1985-91)
Current Research Activities:
Characterization of crystal structures and crystal defects by transmission electron
microscopy; passive oxide films on nanocrystals of metals; magnetic alloys; quasicrystals;
semiconductor multilayers.
Active Projects as Principal Investigator:
High resolution transmission electron microscopy study of nanostructured magnetic materials
DAG DAG97/98.SC22 HK$73,780 Jun 1998
Development of advanced magnetic materials and related components for the electrical/electronics industries
ITC AF/155/99 HK$10,060,000 Oct 1999
High resolution transmission electron microscopy study of protective oxide films on nanocrystals of stainless steel
DAG DAG99/00.SC28 HK$45,000 Feb 2000
High Resolution Transmission Electron Microscopy And Conductivity Study Of Isolated And Embedded Metallic Nanoparticles
CERG HKUST6140/00P HK$337,817 Sep 2000 Representative Recent Publications:
Kwok, Y.S., Zhang, X.X., Qin, B. and Fung, K.K. (2000) "High resolution transmission electron microscopy study of epitaxial oxide shell on nanoparticles of iron", Appl. Phys.
Lett., 77, 3971-3973.
Fung, K.K., Qin, B. and Zhang, X.X. (2000) "Passivation of alpha-Fe nanoparticles by epitaxial gamma-Fe2O3 shell", Mater. Sci. Eng. A, 286 (1): 135-138.
Fung, K.K. and Wang, N. (2000) "Transmission electron microscopy study of intersecting stacking faults in ZnSe/GaAs(001) epilayers and (SiGe)/Si(001) multilayers", Defects and Diffusion in Semiconductors, 183, 215-230.
Wang, N., Fung, K.K. and Sou, I.K. (2000) "Direct observation of stacking fault nucleation in the early stage of ZnSe/GaAs pseudomorphic epitaxial layer growth", Appl. Phys. Lett., 77, 2846-2848.
Xu, L., Wang, N., Lee, S.T. and Fung, K.K. (2000) "Electron diffraction study of octagonal-cubic phase transitions in Mn-Si-Al", Phys. Rev. B, 62, 3078-3082.
Wang, N, Fung, K.K., Zhang, X.F., Geng, J.B., Wang, P.K. and Lee, S.T. (1999)
"Transmission electron microscopy study of cross-sections of magnetoresistive read heads", Phil. Mag. A, 79 (1): 107-112.
WEIKUN GE Senior Lecturer
(23587491; [email protected])
PhD, University of Manchester (1983)
Research Associate, Institute of Semiconductors, Chinese Academy of Sciences (1984-85) Current Research Activities:
Semiconductor physics: heterostructures, nanostructures, and defects; optical properties.
Active Projects as Principal Investigator:
Alloying vs. isoelectronic doping in tertiary semiconductor alloys CERG HKUST6125/98P HK$435,000 Oct 1998
Optical study of ultrathin III-V quantum wells: Application to multicolour displays G-HK G-HK98/99.SC07 HK$30,000 Apr 1999
CAS-UST nanostructure materials and technology joint lab CMI CMI99/00.SC04 HK$600,000 Apr 2000
Development Of Nanostructured Polymeric Materials And Devices For Converting Light To Electricity --- Solar Cells And Photo-detectors
CERG HKUST6141/00P HK$307,817 Oct 2000 Representative Recent Publications:
Huang, Y.M., Ge, W.K., Lam, J.W.Y. and Tang, B.Z. (1999) "Efficient Photoluminescence of Monosubstituted Polyacetylenes", Appl. Phys. Lett., 75, 4094-6.
Huang, Y.M., Lam, J.W.Y., Cheuk, K.K.L., Ge, W.K. and Tang, B.Z. (1999) "Strong Luminescence from Poly(1-alkynes)", Macromolecules, 32, 5976-8.
Lu, L.W., Zhang, Y.H., Yang, G.W., Wang, J.N. and Ge, W.K. (1998) "Threshold reduction in strained-layer InGaAs/GaAs quantum well lasers by liquid phase epitaxy regrowth", Journal of Crystal Growth, 194, 25-30.
Lu, Z.D, Xu, J.Z., Zheng, B.Z., Xu, Z.Y. and Ge, W.K. (1999) "Effect of growth
interruption on the optical properties of InAs/GaAs quantum dots", Solid St. Commun., 109, 649-653.
Li, Q., Xu, Z.Y. and Ge, W.K. (2000) "Carrier capture into InAs/GaAs quantum dots
detected by a simple degenerate pump-probe technique", Solid State Communications, 115, 105-108.
Zhang, Y, and Ge, W.K. (2000) "Behavior of nitrogen impurities in II-V semiconductors", J.
Luminescence, 85, 247-260.
PAK-WO LEUNG Associate Professor
(23587483; [email protected])
PhD, Cornell University (1990)
Postdoctoral Research Associate, Florida State University (1990-92) Current Research Activities:
Computational condensed matter physics; low-dimension quantum spin systems.
Active Projects as Principal Investigator:
A systematic numerical study of high temperature superconductors with a small number of charge carries
CERG HKUST6144/97P HK$446,000 Jan 1998
Numerical studies of frustrated and dimerized quantum magnetic systems in low dimensions F-HK F-HK98/99.SC05 HK$59,000 Mar 1999
Numerical Studies Of Finite Temperature Properties Of High Temperature Superconductors CERG HKUST6146/99P HK$573,000 Dec 1999
Representative Recent Publications:
Leung, P.W. (in press) "Signatures of a staggered-flux phase in the t-J model with two holes on a 32-site lattice", Physical Review B - Rapid Communications.
Yin, W.-G., Gong, C.-D. and Leung, P.W. (1998) "Origin of the Extended Van Hove region in Cuprate Superconductors", Physical Review Letters, 81 (12): 2534-2537.
Chernyshev, A.L. and Leung, P.W. (in press) "Holes in the t-Jz model", Physical Review B.
Chernyshev, A.L. and Leung, P.W. (1999) "Holes in the t-Jz model: a diagrammatic study", Physical Review B, 60, 1592-1606.
Chernyshev, A.L., Leung, P.W. and Gooding, R.J. (1998) "Comprehensive numerical and analytical study of two holes doped into the two-dimensional t-J model", Physical Review B, 58 (20): 13594-13613.
Chernyshev, A.L., Leung, P.W. and Gooding, R.J. (1998) "A numerical and analytical study of two holes doped into the 2D t-J model", Journal of Physics & Chemistry of Solids, 59 (10-12): 1815-1817.
TAI-KAI NG Associate Professor
(23587477; [email protected])
PhD, Northwestern University (1987)
Postdoctoral Associate, Massachusetts Institute of Technology (1987-89) Postdoctoral Associate, AT&T Bell Laboratories (1989-91)
Current Research Activities:
Mesoscopic physics; non-equilibrium quantum mechanical phenomena; quantum spin systems; strongly correlated metals.
Active Projects as Principal Investigator:
Topological disorder in quantum hall ferromagnets and quantum spin JRS JRS98/40 HK$71,875 Apr 1998
Magnetic superconductors
CERG HKUST6124/98P HK$435,000 Sep 1998
Topological spin and charge excitations in zero-doping limit of t-J model DAG DAG99/00.SC29 HK$62,000 Dec 1999
Coulomb Blockade And Quantum Effects In Granular Systems CERG HKUST6142/00P HK$287,817 Sep 2000
Representative Recent Publications:
Liu, Y.L. and Ng, T.K. (1999) "A model of marginal Fermi liquid superconductor at two dimensions", Physical Review Letters, 83, 3504.
Ng, T.K. (1999) "Topological spin excitations of Heisenberg antiferromagnets in two dimensions", Physical Review Letters, 82 (17): 3504-3507.
Ng, T.K. and Cheng, C.H. (1999) "Supersymmetry in models with strong on-site Coulomb repulsion: Application to Heisenberg model", Physical Review B (Rapid Communication), 59 (10): 6616-6619.
Ng, T.K. and Varma, C.M. (1998) "Spin and vortex dynamics and electromagnetic
propagation in the spontaneous vortex phase", Physical Review B, 58 (17): 11624-11630.
Wong, S.K., Zhao, B., Ng, T.K., Jing, X.N., Yan, X. and Hui, P.M. (in press) "A
phenomenological model for percolating magnetic nanostructures", Journal of Europhysics.
Lee, P.A., Nagaosa, N., Ng, T.K. and Wen, X.G. (1998) "SU(2) theory of undoped High-Tc cuprates", Physical Review B, 57, 6003-6011.
IAM KEONG SOU Associate Professor
(23587476; [email protected])
PhD, University of Illinois, Chicago (1990)
Research Associate, University of Illinois, Chicago (1990-91) Current Research Activities:
Thin film growth by molecular beam epitaxy; II-VI semiconductor quantum structures;
visible optoelectronic devices; structural and transport properties of thin films.
Active Projects as Principal Investigator:
II-VI Alloy Based Tunable UV Photodetectors CERG HKUST6149/99P HK$435,000 Sep 1999 Visible-blind ultra-violet liquid crystal light valve N-RGC NSFC/HKUST35 HK$780,000 Mar 2000 Representative Recent Publications:
Ma, Z.H., Smith, T. and Sou, I.K. (1999) "Secondary Ion Mass Spectroscopy Study of Al Diffusion in Sandwich-ZnSTe Structures Grown by Molecular Beam Epitaxy", Journal of Applied Physics, 86 (5): 2505-2508.
Ma, Z.H., Sou, I.K., Wong, K.S., Yang, Z. and Wong, G.K.L. (1998) "ZnSTe-based
Schottky Barrier Ultraviolet Detectors with Nanosecond Response Time", Applied Physics Letters, 73 (16): 2251-2253.
Ma, Z.H., Sun, W.D., Sou, I.K. and Wong, G.K.L. (1998) "Atomic Force Microscopy Studies of ZnSe Self-organized Dots Fabricated on ZnS/GaP", Applied Physics Letters, 73 (10): 1340-1342.
Sou, I.K., Ma, Z.H. and Wong, G.K.L. (1999) "Photoresponse studies of ZnSSe visible-blind ultraviolet detectors: a comparison to ZnSTe detectors", Applied Physics Letters, 75 (23): 3707-3709.
Sou, I.K., Ma, Z.H., Zhang, Z.Q. and Wong, G.K.L. (2000) "Temperature Dependence of the Responsivity of II-VI ultraviolet photodiodes", Applied Physics Letters, 76 (9):
1098-1100.
Wong, K.S., Wang, H., Yang, Z., Sou, I.K. and Wong, G.K.L. (1999) "ZnSe/GaAs Interface State Probed by Time-resolved Reflectance Difference Spectroscopy", Applied Physics Letters, 74 (24): 3663-3665.
KWOK-YIP SZETO Associate Professor
(23587479; [email protected])
PhD, Massachusetts Institute of Technology (1985)
Postdoctoral Fellow, University of Toronto (1985-86) Postdoctoral Fellow, KFA, Juelich, Germany (1986-87) Asst. Professor of Physics, York University (1987-91) Current Research Activities:
Pattern formation in complex systems; Evolution; Two-dimensional cellular systems;
Genetic algorithm; Multi-agents systems; Data mining; Bioinformatics; Artificial life;
Frustrated spin systems; Quasicrystal growth.
Active Projects as Principal Investigator:
Universal topological properties in two-dimensional cellular structures CERG HKUST6123/98P HK$405,000 Jul 1998
Theoretical studies of pattern recognition in bioinformatics DAG DAG98/99.SC25 HK$60,000 Feb 1999
Development of the SNP-based fingerprinting and disease pattern recognition using the patented DNA technology developed in Hong Kong
ITC AF/204/99 HK$136,720 Sep 1999
Interdisciplinary Research On The Topological Characteristics Of Point Patterns Generated By Agent Dynamics
CERG HKUST6144/00P HK$379,817 Jul 2000 Representative Recent Publications:
Dyrting, S., Fang, H.-P., Szeto, K.Y. and Sheng, P. (1999) "Tunneling states in tetrahedrally bonded amorphous semiconductors", Europhysics Letters, 48 (4): 403-409.
Dubertret, B., Szeto, K.-Y. and Tam, W.Y. (1999) "T1-Correlations in Two-dimensional Cellular Systems", Europhysics Letters, 45 (2): 143-148.
Szeto, K.-Y., Aste, T. and Tam, W.Y. (1999) "Topological Correlations in Soap Froths", Physical Review E, 58 ( 2): 2656-2659.
Jiang, R., Szeto, K.Y., Luo, Y, Hu, D. (2000) "Distributed parallel genetic algorithm with
Jiang, R., Szeto, K.Y., Luo, Y, Hu, D. (2000) "Distributed parallel genetic algorithm with