Kwo,Ray Nien

Personal Website

Office:886-3-5742800(PHYS R225)
Laboratory:Advanced Thin Film Low Temperature Measurement Lab/Novel Materials Core Facility Oxide Epitaxy Lab
Lab Tel: 03-571-5131-x 33225, and x 62446
(room 205, 206, 209)

  1. 1977-1981, Ph.D. Applied Physics, Stanford University, U.S.A.
  2. 1975-1977, M.S. Applied Physics, Stanford University, U.S.A.
  3. 1971-1975, B.S. Physics, National Taiwan University, R.O.C.
Professional Experience
Current position:
  1. 1/2008-1/2010 President, the Physical Society of Republic of China
  2. 8/2008-present Director, Fundamental Science Research Center, National Tsing Hua University
  3. 8/2008-present Tsing Hua Distinguished Chair professor
  4. 6/ 2003-present, Professor , Department of Physics, National Tsing Hua University
  1. 8/2005- 7/2008 , Chairperson, Department of Physics, National Tsing Hua University
  2. 8/2004-7/2008 Tsing Hua Natural Science Chair Professor, National Tsing Hua University
  3. 6/2003-7/2004 TSMC Endowed Chair Professor, National Tsing Hua University
  4. 6/2003-7/2005, Senior Advisor of Industrial Technology Research Institute (ITRI)
  5. 8/2000-6/2003, Distinguished Member of Technical Staff, Electronic Research Laboratory, Agere Systems, New Jersey, U.S.A.
  6. 6/1981-8/2000, Member of Technical Staff, Physical Research Division, Bell Laboratories, Murray Hill, U.S.A.
Honors and Awards
  1. 2009-present, Fellow, American Physical Society
  2. 2005- present The Physical Society of Republic of China Fellow
  3. 2/2004-2/2009 Outstanding Scholar Award from the Foundation for the Advancement of Outstanding Scholarship, Taiwan
  4. 6/2003-7/2004 TSMC Endowed Chair award
Research Fields
    1. Materials physics of thin films by advanced molecular beam epitaxy
    2. Spintronics
    3. Gate dielectrics for Si and III-V semiconductors
    4. High temperature superconducting films
    5. Magnetic superlattices and heterostructures
Research Interests and achievement
Updated on September 3, 2006
My research has primarily been exploring the frontier of physics in novel materials by advanced thin film preparation techniques. During my tenure in Bell Lab Physical Research over a span of 22 years, the earlier representative work was magnetic superlattices by the invention of metal molecular beam epitaxy in 1981-86. The pioneer work on synthetic rare earth magnetic superlattices demonstrated for the first time the modulation effect of magnetic properties by artificial layering, and invented the notion of "magnetronics”. During 1987-92, high temperature superconducting perovskite oxide films was the main focus by inventing oxide molecular beam epitaxy, and this has led to studies of anisotropic superconducting properties in layered cooperates, and understanding of the fundamental HTSC mechanism. From 1993 till now, my interest has shifted toward high dielectric constant (κ) oxides for nano electronic and photonic applications. Two new transparent conducting oxides were discovered for modern display and electro-optical devices. During last decade major efforts were devoted to high κ dieletric film synthesis for DRAMs, wireless communication, and recently gate oxide applications. The discovery of a mixed oxide for compond semiconductors passivation demonstrated for the first time the long sought GaAs-based MOSFETs, now considered as a viable technology replacing Si CMOS in near future. Another new program being developed is the spintronics research to study dilutely doped magnetic oxides based on high κ dielectrics, spin polarization anaylsis by Andreev Reflection, and spin injection and dynamics in Datta-Das Spin FET made of half metals and compound semiconductors

Selected Publications
  1. [2009] "InGaAs Metal-Oxide-Semiconductor Devices with High k Dielectrics for Science and Technology beyond Si CMOS”, M. Hong*, J. Kwo* , T. D. Lin, and M. L. Huang, MRS Bulletin, 34 , 514, (2009).
  2. [2005] "High κ Gate Dielectrics for Compound Semiconductors, by J. Kwo and M. Hong , a book chapter in "Advanced Gate Stacks on High-Mobility Semiconductors”, edited by A. Dimoulas, E. P. Gusev, P. McIntyre, M. Heyns, Springer publishing company in the Springer Series Materials Science, (2005).
  3. [2000] "High εgate dielectrics Gd2O3 and Y2O3 for Si”, J. Kwo, M. Hong, A.R. Kortan, K. T. Queeney, Y. J. Chabal, J. P. Mannaerts, T. Boone, J. J. Krajewski, A. M. Sergent, and J. M. Rosamilia, Appl. Phys. Lett., 77, 130, (2000).
  4. [1999] "Semiconductor-Insulator Interfaces”, M. Hong, C. T. Liu, H. Reese, and J. Kwo in "Encyclopedia of Electrical and Electronics Engineering”, 19, p. 87-100, Ed. by J. G. Webster, Published by John Wiley & Sons, New York, (1999).
  5. [1999] "Epitaxial Cubic Gd2O3 as a Dielectric for GaAs Passivation”, M. Hong, J. Kwo, A. R. Kortan, J. P. Mannaerts, and A. M. Sergent, SCIENCE, 283, 1897 (1999).
  6. [1992] "Out of Plane Orbital Characters of Conducting Holes in La2-xSrxCuO4”, C. T. Chen, L. H. Tjeng, J. Kwo, H. L. Kao, P. Rudoff, F. Sette, and R. M. Fleming", Phys. Rev. Lett. 68, 2543, (1992).
  7. [1992] "Systematic Evolution of Temperature Dependent Resistivity in La2-xSrxCuO4”, H. Takagi, B. Batlogg, H. L. Kao, J. Kwo, R. J. Cava, J. J. Krajewski and W. F. Peck, Jr., Phys. Rev. Lett. 69, 2975, (1992).
  8. [1991] "Magnetic Rare Earth Superlattices,” C. F. Majkrzak, J. Kwo, M. Hong, Y. Yafet, D. Gibbs, C. L. Chien and J. Bohr, Journal of Advances in Physics, 40, 99-189, (1991).
  9. [1988] "Crystal Structure of the 80K Superconductor YBa2Cu4O8”, P. Marsh, R. M. Fleming, M. L. Mandich, A. M. DeSantolo, J. Kwo, M. Hong, L. Maratinez-Miranda, NATURE V334, 141, (1988).
  10. [1988] "In-situ Epitaxial Growth of YBa2Cu3O7-x Films by Molecular Beam Epitaxy with an Activated Oxygen Source”, J. Kwo, M. Hong, D. J. Trevor, R. M. Fleming, A. E. White, R. C. Farrow, A. R. Kortan, and K. N. Short, Appl. Phys. Lett. 53, 2683, (1988).
  11. [1987] "Synthesis of Rare Earth Films and Superlattices” J. Kwo, a chapter in "Thin Film Techniques for Low Dimensional Structures", Edited by R. F. C. Farrow, S. S. P. Parkin, P. J. Dobson, N. H. Neave, and A. S. Arrott, NATO ASI Series B, Physics 13, p. 337, Plenum Publisher (1987).
  12. [1985] "Magnetic and Structural Properties of Single Crystal Rare-Earth Gd/Y Superlattices”, J. Kwo, E. M. Gyorgy, D. B. McWhan, M. Hong, F. J. Di Salvo, C. Vettier and J. E. Bower, Phys. Rev. Lett. 55, 1402 (1985).
  13. [1981] "Superconducting Tunneling into Al5 Nb3Al Thin Films”, J. Kwo and T. H. Geballe, Phys. Rev. B23, 3230 (1981).
    • All Publications (Expansible)