Research Assistant Professor, Seung-Jin Han


Education

    1985 - B.S. in Physics, Dongguk University
    1992 - Ph.D. in Physics, University of California, Santa Cruz, USA

Career

    1992 : University of California, Santa Cruz, USA (Research Associate)
    1993 - 1996 : University of California, Santa Barbara, USA (Postdoctoral Fellow)
    1997 - 2000 : POSTECH, Korea (Postdoctoral Fellow)
    2000 - present : POSTECH, Korea (Research Assistant Professor)

Research Interests

    Magnetic Systems
    Phase Transitions in Disordered Systems
    Pulsed Laser Deposition : thin film growth
    Ion-Surface Reaction

Major Publication

    27. Y. H. Jeong, S-J. Han, J.-H. Park, Y. H. Lee "A critical examination of room temperature ferromagnetism in transition metal-doped oxide semiconductors" J. Magn. Magn. Mater. in press (2004)
    26. S-J. Han, B. Y. Lee, Y. B. Kim, Y. H. Jeong "Magnetic properties of Zn1-xCoxO" J. Magn. Magn. Mater. in press (2004)
    25. S-J. Han, T-H. Jang, Y. B. Kim, B. -G, Park, J.-H. Park, and Y. H. Jeong "Magnetism in Mn-doped ZnO bulk sampls prepared by solid state reaction" App. Phys. Lett, 83, No 5, 920-922 (2003)
    24. S-J. Han, C-W. Lee, R. J. W. E. Lahaye, and H. Kang "Hyperthermal scattering of Cs+ from Pt(111): the effect of image charge on the ion-surface energy transfer" Surface Science, 538, 184-190 (2003)
    23. S-J. Han, J. W. Song, C.-H. Yang, S. H. Park, J,-H. Park, Y. H. Jeong, and K. W. Rhie "A key to room temperature ferromagnetism in Fe-doped ZnO:Cu" Appl. Phys. Lett. 81, No22, 4212-4214 (2002)
    22. J.R. Hahn, C.W. Lee, S-J Han, R. J. W. E. Lahaye, and H. Kang "Low energy Cs+ scattering from water on Pt(111): a kinetic energy analysis of the Cs+-water clusters", J. Phys. Chem A, 106, No42, 9827-9831 (2002)
    21. Seung Koo Shin, Byungjoo Kim, Russell L. Jarek, and Seung-Jin Han "Product-resolved photodissociations of idotoluene radical cations", Bull. Korean Chem. Soc. 23, No2, 267-270(2002)
    20. S-J. Han, C.-W. Lee, H. Yoon, and H. Kang "Discovery of CO2 precursor in the reaction of CO and O on Pt(111)", J. Chem. Phys. 116, No7, 2684-2687(2002)
    19. S-J. Han, C.-W. Lee, C.-H. Hwang, K.-H. Lee, M.C. Yang, and H. Kang "Spectrometer for the Study of Angle- and Energy-Resolved Reactive Ion Scattering at Surfaces", Bull. Korean Chem. Soc. 22, No8, 883-888(2001)
    18. H. Kang, T.-H. Shin, S.-C. Park, I. K. Kim, S-J. Han "Acidity of Hydrogen Chloride on Ice" J. Am. Chem. Soc. (Communication), 122, 9842-9843(2000)
    17. Seung-Jin Han, Seong Chan Park, Jong-Gyu Lee, and Heon Kang "Ionic-to-metallic layer transition in Cs adsorption on Si(111)-(7x7): charge state selective detection of the adsorbates by Cs+ reactive ion scattering" J. Chem. Phys. 112, 8660-8664 (2000)
    16. T.-H. Shin, S-J. Han, and H. Kang "Efficient hydration of Cs+ ions scattered from ice films" Nucl. Instr. and Meth. B 157, 191-197 (1999).
    15. K.-Y. Kim, T.-H. Shin, S-J. Han, and H. Kang "Identification of the Precursor State in the Initial Stages of Si(111)-(7x7) Oxidation" Phys. Rev. Lett. 82, 1329-1332 (1999).
    14. S-J. Han, M. C. Yang, C. H. Hwang, D. H. Woo, J. R. Hahn, and H. Kang "Vacuum UV Photoionization and Photodissociation of Ferrocene" Int. J. Mass Spectrom. Ion Process. 181, 59-66 (1998).
    13. S-J. Han and S. K. Shin "Space-Charge Effects on Fourier Transform Ion Cyclotron Resonance Signals: Experimental Observations and Three Dimensional Trajectory Simulations" J. Am. Soc. Mass Spectrom. 8, 319-326 (1997).
    12. S. K. Shin and S-J. Han "Application of Sustained Off-Resonance Irradiation: The Beat Frequency Measurement and Radial Separation of Mass-Selected Ions" J. Am. Soc. Mass Spectrom. 8, 86-89 (1997).
    11. S. K. Shin, S-J. Han, and B. Kim "Time-Resolved Photodissociation of p-Bromotoluene Ion as a Probe of Ion Internal Energy" Int. J. Mass Spectrom. Ion Process. 158, 345-355 (1996).
    10. S. K. Shin, S-J. Han, and B. Kim "Fourier Transform Ion Cyclotron Resonance Detection of Multiphoton Ionization Spectroscopy" J. Am. Soc. Mass Spectrom. 7, 1018-1025 (1996).
    9. D. P. Belanger, J. Wang, Z. Slanic, S-J. Han, R. M. Nicklow, M. Lui, C. A. Ramos, and D. Lederman "Magnetic Order in the Random-Field Ising Film Fe0.52Zn0.48F2" Physical Review B (Condensed Matter) 54, 3420-3427 (1996).
    8. S. K. Shin, B. Kim, J. G. Haldeman, and S-J. Han "State-selected Photodissociation of Acetaldehyde Molecular ion : Hydrogen Scrambling and the Product Branching Ratio" J. Phys. Chem. 100, 8280-8284 (1996).
    7. S. K. Shin and S-J. Han "Nonlinear Oscillations in Ion Cyclotron Resonance" Int. J. Mass Spectrom. Ion Process. 153, 87-99 (1996).
    6. D. P. Belanger, J. Wang, Z. Slanic, S-J. Han, R. M. Nicklow, M. Lui, C. A. Ramos, and D. Lederman "Neutron Scattering Study of the Random Field Ising Film Fe0.5Zn0.5F2" Journal of Magnetism and Magnetic Materials 140, 1549-1550 (1995).
    5. C. Paduani, D. P. Belanger, J. Wang, S-J. Han, and R. M. Nicklow "Magnetic Excitations in the Dilute Anisotropic Antiferromagnet FexZn1-xF2" Physical Review B (Condensed Matter) 50, 193-199 (1994).
    4. D. Lederman, D. P. Belanger, J. Wang, S-J. Han, C. Paduani, C. A. Ramos, and R. M. Nicklow "Neutron and X-ray Scattering Studies of (FeF2)m(CoF2)n Multilayers" Magnetic Ultrathin Films. Multilayers and Surfaces, Interfaces and Characterization Symposium. (conference paper) Mater. Res. Soc. Symp. Proc. 313, 333-338 (1993).
    3. S-J. Han and D. P. Belanger "Relaxation of the Remanent Magnetization of Dilute Anisotropic Antiferromagnets" Physical Review B (Condensed Matter) 46, 2926-2932 (1992).
    2. S-J. Han, D. P. Belanger, W. Kleemann, and U. Nowak "Relaxation of the Excess Magnetization of Random-Field-Induced Metastable Domains in Fe0.47Zn0.53F2" Physical Review B (Condensed Matter) 45, 9728-9735 (1992).
    1. F. C. Montenegro, A. R. King, V. Jaccarino, S-J. Han, and D. P. Belanger "Random-Field-Induced Spin-Glass-Like Behavior in the Diluted Ising Antiferromagnet Fe0.31Zn0.69F2" Physical Review B (Condensed Matter) 44, 2155-2160 (1991).


Department of Physics
POSTECH
HyoJa-Dong San 31
KyungBuk Pohang, Korea, 790-784
e-mail:han@postech.ac.kr
phone:+82-54-279-8383(office)
fax:+82-54-279-3099


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