Seoul National Univ. DMSE
People
Faculty
Han, Seungwu
professor
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Mailstop
33-319
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Phone
880-7088
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Fax
885-9671
- Homepage
Education
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2000
Ph.D : Seoul National University, Department of Physics
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1995
M.S : Seoul National University, Department of Physics
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1993
B.S : Seoul National University, Department of Physics
Career
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2000-2001
Center for Strongly Correlated Materials Research, Seoul National University, Post Doctoral Research Scientist
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2001-2003
Princeton Materials Institute, Princeton University, Post Doctoral Research Scientist
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2003-2009
Ewha Womans U Department of Physics, Professor
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2009-present
Seoul National University, Department of Materials Science and Engineering, Associate Professor
Research Interests
1. Memory devices* PRAM : Modeling of PRAM resistance drift based on first principles
* ReRAM : Quantum simulations to enhance ReRAM reliability
* DRAM : Simulations on gate stacked structures for next generation DRAM2. Materials for display* Microscopic characterization of In-Ga-Zn-O using first principles calculations3. Energy materials for fuel cell* First principles study of catalytic materials (LaMnO3 , CeO2, etc) as cathode and electrolyte4. Industrial utilization of advanced materials* Computational simulations on the large scale atomic/molecular deposition of graphene
* Research on the correlation between mechanical stress and carrier transport in graphene surface layers
* ReRAM : Quantum simulations to enhance ReRAM reliability
* DRAM : Simulations on gate stacked structures for next generation DRAM2. Materials for display* Microscopic characterization of In-Ga-Zn-O using first principles calculations3. Energy materials for fuel cell* First principles study of catalytic materials (LaMnO3 , CeO2, etc) as cathode and electrolyte4. Industrial utilization of advanced materials* Computational simulations on the large scale atomic/molecular deposition of graphene
* Research on the correlation between mechanical stress and carrier transport in graphene surface layers
Selected Publications
1. Papers* "Enhanced amorphous stability of carbon-doped Ge2Sb2Te5: Ab initio investigation", Appl. Phys. Lett., 99, 183501 (2011)
* "Capacitors with an equivalent oxide thickness of < 0.5 nm for nanoscale electronic semiconductor memory", Adv. Funct. Mater., 20, 2989 (2010)
* "Atomic structure of conducting nano-filaments in TiO2 resistive switching memory", Nat. Nanotechnol., 5, 148 (2010)
* "Electrical manipulation of nano-filaments in transition metal oxides for resistance based memory", Nano Lett., 9, 1476 (2009)
* "Density and spatial distribution of charge carriers in the intrinsic n-type LaAlO3-SrTiO3 interface , Phys. Rev. B, 79, 245411 (2009)
* "Electronic structure tailoring and selective adsorption mechanism of metal-coated nanotubes", Nano Lett., 8, 81 (2008)
* "Segregation of oxygen vacancy at metal-HfO2 interfaces", Appl. Phys. Lett., 92, 233118 (2008)
* "Oxygen vacancy clustering and electron localization in oxygen-deficient SrTiO3: LDA+U study", Phys. Rev. Lett., 98, 115503 (2007)
[Total of 95 publications in SCI journals]
* "Capacitors with an equivalent oxide thickness of < 0.5 nm for nanoscale electronic semiconductor memory", Adv. Funct. Mater., 20, 2989 (2010)
* "Atomic structure of conducting nano-filaments in TiO2 resistive switching memory", Nat. Nanotechnol., 5, 148 (2010)
* "Electrical manipulation of nano-filaments in transition metal oxides for resistance based memory", Nano Lett., 9, 1476 (2009)
* "Density and spatial distribution of charge carriers in the intrinsic n-type LaAlO3-SrTiO3 interface , Phys. Rev. B, 79, 245411 (2009)
* "Electronic structure tailoring and selective adsorption mechanism of metal-coated nanotubes", Nano Lett., 8, 81 (2008)
* "Segregation of oxygen vacancy at metal-HfO2 interfaces", Appl. Phys. Lett., 92, 233118 (2008)
* "Oxygen vacancy clustering and electron localization in oxygen-deficient SrTiO3: LDA+U study", Phys. Rev. Lett., 98, 115503 (2007)
[Total of 95 publications in SCI journals]
Lab Overview
1. Characterization of the physical properties of PRAM materials and device performance anticipation* Research on the atomic and electronic structure of amorphous Ge2Sb2Te52. Developing transparent electrodes* Modeling of amorphous InGaZnO4 and its structural changes according to defect incorporation3. Research of cathode catalyst materials for fuel cell* Understanding electronic structure of LaMnO4 using first principle calculation