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Lee, Geunsik (이근식)

Department
Department of Chemistry(화학과)
Website
https://sites.google.com/view/gslee2017/home
Lab
Computational Research on Electronic Structure and Transport in Condensed Materials (응집물질 전자구조 및 전자전도 연구실)
Research Keywords
open quantum system, electron correlation, dynamical mean field theory, 2D materials, non-equilibrium electron transport, magnetic ordering, strongly correlated system, water splitting, perovskite solar cell
Research Interests
Physical and chemical properties of materials are governed by electromagnetic interaction between charged species. Particles heavier than few-nucleon can be easily described by classical equations of motion. However, electrons require a special treatment because of their uncertainty in exhibiting quantitative properties. The most prevailing theory in last one century has been the quantum mechanics where distribution of electrons is probabilistically given by a squared wave function. Once we know the distribution of electrons or the initial wave function, all the microscopic behavior later on, in principle, can be predicted by using the Schrodinger equation of motion and quantum statistical mechanics. But, practically, it is still challenging to describe system of many particles interacting among themselves, namely the complex system, where only qualitative behavior has been known with simplified models. For reliable and quantitative description of physical and chemical properties of materials, we need high-performance computation power together with numerical approaches solving quantum mechanics. By using various state-of-the-art numerical methods, our group is mainly oriented to studying novel phenomena of nanoscale systems, related to next-generation electronic/spintronic/optical devices and high-efficient energy/environment catalysts. In addition, we develop a numerical code to describe strongly correlated systems in non-equilibrium steady-state situation.
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Issue DateTitleAuthor(s)TypeViewAltmetrics
2016-07Electron Transport in Graphene Nanoribbon Field-Effect Transistor under Bias and Gate Voltages: Isochemical Potential ApproachYun, Jeonghun; Lee, Geunsik; Kim, Kwang S.ARTICLE568 Electron Transport in Graphene Nanoribbon Field-Effect Transistor under Bias and Gate Voltages: Isochemical Potential Approach
2016-05APEX Fingerprinting Reveals the Subcellular Localization of Proteins of InterestLee, Song-Yi; Kang, Myeong-Gyun; Park, Jong-Seok, et alARTICLE770 APEX Fingerprinting Reveals the Subcellular Localization of Proteins of Interest
2015-12Real-Time Propagation via Time-Dependent Density Functional Theory Plus the Hubbard U Potential for Electron-Atom Coupled Dynamics Involving Charge TransferShin, Dongbin; Lee, Geunsik; Miyamoto, Youshiyuki, et alARTICLE541 Real-Time Propagation via Time-Dependent Density Functional Theory Plus the Hubbard U Potential for Electron-Atom Coupled Dynamics Involving Charge Transfer
2015-07Surface Effect Induced Optical Bandgap Shrinkage in GaN NanotubesPark, Youngsin; Lee, Geunsik; Holmes, Mark J., et alARTICLE787 Surface Effect Induced Optical Bandgap Shrinkage in GaN Nanotubes
2015-06Geometrical and Electronic Characteristics of AunO2- (n=2-7)Lee, Han Myoung; Lee, Kee Hag; Lee, Geunsik, et alARTICLE615 Geometrical and Electronic Characteristics of AunO2- (n=2-7)
2015-05Graphene Edges and Beyond: Temperature-Driven Structures and Electromagnetic PropertiesHyun, Changbae; Yun, Jeonghun; Cho, Woo Jong, et alARTICLE1033 Graphene Edges and Beyond: Temperature-Driven Structures and Electromagnetic Properties
2015-03Tailoring electronic and magnetic properties of MoS2 nanotubesLi, Nannan; Lee, Geunsik; Jeong, Yoon Hee, et alARTICLE655 Tailoring electronic and magnetic properties of MoS2 nanotubes
2014-11Density functional theory based study of molecular interactions, recognition, engineering, and quantum transport in π molecular systemsCho, Yeonchoo; Cho, Woo Jong; Youn, Il Seung, et alARTICLE749 Density functional theory based study of molecular interactions, recognition, engineering, and quantum transport in π molecular systems
2014-10Valley-Polarized Interlayer Conduction of Anisotropic Dirac Fermions in SrMnBi2Jo, YJ; Park, Joonbum; Lee, Geunsik, et alARTICLE528 Valley-Polarized Interlayer Conduction of Anisotropic Dirac Fermions in SrMnBi2
2014-10Spectroscopic Evaluation of Out-of-Plane Surface Vibration Bands from Surface Functionalization of Graphite Oxide by FluorinationAcik, Muge; Yagneswaran, Sriram; Peng, Weina, et alARTICLE544 Spectroscopic Evaluation of Out-of-Plane Surface Vibration Bands from Surface Functionalization of Graphite Oxide by Fluorination
2014-04Spin-induced band modifications of graphene through intercalation of magnetic iron atomsSung, S. J.; Yang, J. W.; Lee, P. R., et alARTICLE587 Spin-induced band modifications of graphene through intercalation of magnetic iron atoms
2014-02Two dimensional molecular electronics spectroscopy for molecular fingerprinting, DNA sequencing, and cancerous dna recognitionRajan, Arunkumar Chitteth; Rezapour, Mohammad Reza; Yun, Jeonghun, et alARTICLE832 Two dimensional molecular electronics spectroscopy for molecular fingerprinting, DNA sequencing, and cancerous dna recognition
2014-01AEMnSb2 (AE=Sr, Ba): a new class of Dirac materialsFarhan, M Arshad; Lee, Geunsik; Shim, Ji HoonARTICLE518 AEMnSb2 (AE=Sr, Ba): a new class of Dirac materials
2014-01Grain Boundary Effect on Electrical Transport Properties of GrapheneZhang, H; Lee, Geunsik; Gong, C, et alARTICLE538 Grain Boundary Effect on Electrical Transport Properties of Graphene
2013-06Anisotropic Dirac electronic structures of AMnBi2 (A = Sr, Ca)Lee, Geunsik; Farhan, M Arshad; Kim, Jun Sung, et alARTICLE587 Anisotropic Dirac electronic structures of AMnBi2 (A = Sr, Ca)
2013-02Noncovalent Functionalization with Alkali Metal to Separate Semiconducting from Metallic Carbon Nanotubes: A Theoretical StudyLi, Nannan; Lee, Geunsik; Yang, Jae Won, et alARTICLE624 Noncovalent Functionalization with Alkali Metal to Separate Semiconducting from Metallic Carbon Nanotubes: A Theoretical Study
2013-02Substrate-Induced Solvent Intercalation for Stable Graphene DopingKim, Hyun Ho; Yang, Jae Won; Jo, Sae Byeok, et alARTICLE647 Substrate-Induced Solvent Intercalation for Stable Graphene Doping
2012-10Orbital Selective Fermi Surface Shifts and Mechanism of High Tc Superconductivity in Correlated AFeAs (A=Li, Na)Lee, Geunsik; Ji, Hyo Seok; Kim, Yeongkwan, et alARTICLE584 Orbital Selective Fermi Surface Shifts and Mechanism of High Tc Superconductivity in Correlated AFeAs (A=Li, Na)
2012-02Atomic Layer Deposition of Dielectrics on Graphene Using Reversibly Physisorbed OzoneJandhyala, Srikar; Mordi, Greg; Lee, Bongki, et alARTICLE629 Atomic Layer Deposition of Dielectrics on Graphene Using Reversibly Physisorbed Ozone
2011-09Anisotropic Dirac Fermions in a Bi Square Net of SrMnBi2Park, Joonbum; Lee, Geunsik; Wolff-Fabris, F., et alARTICLE657 Anisotropic Dirac Fermions in a Bi Square Net of SrMnBi2

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