Category: Physics

물리학과

Kim, Soyeun

Post author By znitinc1
Post date 2023년 10월 30일

Faculty & Research

Physics

Kim, SoyeunASSISTANT PROFESSOR

Websitescholar.google
E-mailquantum.soyeun@gmail.com
Phone+82.10.6290.2642
OfficeE2-*
LabBE2-*

RESEARCH AREA

Strongly correlated quantum materials
Emergent phenomena and collective excitations
Ultrafast and equilibrium optical spectroscopy
XFEL-based x-ray scattering

ACADEMIC & CAREER EXPERIENCE

ACADEMIC	Ph. D., Seoul Natl. Univ.
CAREER	Postdoctoral Researcher, University of Illinois at Urbana-Champaign
CAREER	Postdoctoral Researcher, SLAC Natl. Accelerator Laboratory

Our Researches

The intertwining of different degrees of freedom, such as charge, lattice, spin, and orbital, leads to intriguing phenomena and functionalities in strongly correlated quantum materials. To unravel the underlying physical mechanisms behind these complex phenomena, we investigate the electronic and lattice band structures of solids. We utilize optical spectroscopy and x-ray scattering techniques with various light sources, ranging from continuous wave to femtosecond laser and free-electron laser facilities. Our primary goal is to verify collective excitations originating from emergent phases and actively manipulate the physical properties of these materials.

Representative Publications

2023	“Observation of a massive phason in a charge-density-wave insulator”
	Soyeun Kim, Yinchuan Lv, Xiao-Qi Sun, Chengxi Zhao, Nina Bielinski, Azel Murzabekova, Kejian Qu, Ryan A. Duncan, Quynh L. D. Nguyen, Mariano Trigo, Daniel P. Shoemaker, Barry Bradlyn, Fahad Mahmood
	Nat. Mater. 22, 429-433
2022	“Orbital-selective Mott and Peierls transition in HxVO2”
	Soyeun Kim, Steffen Backes, Hyojin Yoon, Woojin Kim, Changhee Sohn, Junwoo Son, Silke Biermann, Tae Won Noh, Se Young Park
	npj Quantum Mater. 7, 95
2018	“Charge-spin correlation in van der waals antiferromagnet NiPS3”
	So Yeun Kim, Tae Yun Kim, Luke J. Sandilands, Soobin Sinn, Min-Cheol Lee, Jaeseok Son, Sungmin Lee, Ki-Young Choi, Wondong Kim, Byeong-Gyu Park, C. Jeon, Hyeong-Do Kim, Cheol-Hwan Park, Je-Geun Park, S. J. Moon, T. W. Noh
	Phys. Rev. Letters 120, 136402
2018	“Spectroscopic studies on metal-insulator transition mechanism in correlated materials”
	So Yeun Kim, Min‐Cheol Lee, Garam Han, Marie Kratochvilova, Seokhwan Yun, Soon Jae Moon, Changhee Sohn, Je‐Geun Park, Changyoung Kim, Tae Won Noh
	Advanced Materials 30, 170477

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English Faculty Faculty & Research Physics

Kuk, Young

Post author By znitinc1
Post date 2022년 12월 29일

Faculty & Research

Physics

Kuk, YoungPRESIDENTDISTINGUISHED PROFESSOR

Website–
E-mailykuk@dgist.ac.kr
Phone+82.53.785.1007
OfficeE1-101
LabE1-101

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English Faculty Faculty & Research Physics

Kang, Joongoo

Post author By znitinc1
Post date 2022년 12월 22일

Faculty & Research

Physics

Kang, Joongoo PROFESSOR

WebsiteKang Research Group
E-mailjoongoo.kang@dgist.ac.kr
Phone+82.53.785.6517
OfficeE2-308
LabE2-416

RESEARCH AREA

Computational Materials Science ＆ Materials Design
Nanomaterials for Energy Applications
Theoretical Condensed Matter Physics

ACADEMIC & CAREER EXPERIENCE

ACADEMIC	Ph. D., KAIST, Korea
CAREER	Postdoctoral Research Fellow, National Renewable Energy Laboratory (NREL), U.S.A., 2008-2010
	Scientist III, National Renewable Energy Laboratory (NREL), U.S.A., 2010-2014
	Scientist IV, National Renewable Energy Laboratory (NREL), U.S.A., 2014

Our Researches

Calculation is increasingly replacing experimentation in design of useful functional materials. We use quantum mechanics and atomistic simulations for understanding and control of matter, energy, and information at the microscopic scales of materials physics. When combined with machine learning, first-principles materials theory potentially leads to new opportunities for creativity in materials science. As Frank Wilczek once said, “Our creative mastery over matter, through quantum theory, is still embryonic. The best is yet to come.”

Materials by design
Condensed matter theory of real materials; Materials design for energy and information applications
– Will Density Functional Theory remain as the “Standard Model” of materials theory?
Chemical Science
New physics and chemistry through machine learning (ML); Materials physics of complex systems using ML-based interatomic potentials
– Can a machine “see” the Hilbert space as we see objects in the three-dimensional space?
Simple complexity
Structures and dynamics of liquids and glasses; “Phase” transitions in intermediate systems, such as nanoclusters and small proteins
– How does our complex universe arise out of simple physical laws?

Representative Publications

2019	“Synthetic Strategies for (-)-Cannbidiol and Its Structural Analogs”
	Jung, B.; Lee, J. K.; Kim, J.; Kang, E. K.; Han, S. Y.; Lee, H.-Y.; Choi, I. S.
	Chem. Asian J. 2019, 14, 3749-3762.
2018	“Cu(I)-Catalyzed Enantioselective Alkyl 1,4-Additions to (E)-Nitroalkenes and Cyclic Enones with Phosphino-Oxazoline Ligands”
	Shin, M.; Gu, M.; Lim, S. S.; Kim, M.-J.; Lee, J.-H.; Jin, H.-G.; Jang, Y. H.; Jung, B.* Eur. J. Org.
	Chem. 2018, 3122-3130.
2018	“Direct Synthesis of Anthracenes from o-Tolualdehydes and Aryl Iodides through Pd(II)-Catalyzed sp3 C-H Arylation and Electrophilic Aromatic Cyclization”
	Park, H.; Yoo, K.; Jung, B.; Kim, M.
	Tetrahedron 2018, 74, 2048-2055.

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English Faculty Faculty & Research Physics

Kim, Aaram

Post author By znitinc1
Post date 2022년 12월 20일

Faculty & Research

Physics

Kim, Aaram J.ASSISTANT PROFESSOR

Websiteajkdgist
E-mailaaram@dgist.ac.kr
Phone+82.53.785.6534
OfficeE2-613
LabE2-615

RESEARCH AREA

Strongly Correlated Systems
Quantum Many-Body Algorithm

ACADEMIC & CAREER EXPERIENCE

ACADEMIC	Ph. D., Seoul National University, Korea
CAREER	Postdoctoral researcher at University of Frankfurt am Main
	Postdoctoral researcher at King’s College London
	Postdoctoral researcher at University of Fribourg

Our Researches

Based on the symbiotic relation between developing quantum many-body algorithms and extending knowledge on emergent physics, we aim to provide the numerically exact results on the long-standing problems of strongly correlated systems, including the unconventional superconductors, frustrated spin systems, and light-matter-coupled systems. We have expertise in the quantum Monte Carlo methods, the dynamical mean-field theory, and the Feynman diagrammatic theory.

Representative Publications

2022	“Vertex-Based Diagrammatic Treatment of Light-Matter-Coupled Systems”
	Aaram J. Kim, Katharina Lenk, Jiajun Li, Philipp Werner, Martin Eckstein
	arXiv:2112.15549 (Phys. Rev. Lett. Accepted 2022)
2021	“Homotopic Action: A Pathway to Convergent Diagrammatic Theories”
	Aaram J. Kim, Nikolay V. Prokof’ev, Boris V. Svistunov, Evgeny Kozik
	Phys. Rev. Lett. 126, 257001 (2021)
2021	“Entropy in the non-Fermi-liquid regime of the doped 2d Hubbard model”
	Connor Lenihan, Aaram J. Kim, Fedor Simkovic IV, Evgeny Kozik
	Phys. Rev. Lett. 126, 105701 (2021)
2020	“Spin and charge correlations across the metal-to-insulator crossover in the half-filled 2d Hubbard model”
	Aaram J. Kim, Fedor Simkovic IV, Evgeny Kozik
	Phys. Rev. Lett. 124, 117602 (2020)
2017	“J-freezing and Hund’s rules in spin-orbit-coupled multiorbital Hubbard models”
	Aaram J. Kim, Harald O. Jeschke, Philipp Werner, Roser Valenti
	Phys. Rev. Lett. 118, 086401 (2017)

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English Faculty Faculty & Research Physics

Hong, Jung-il

Post author By znitinc1
Post date 2022년 12월 20일

Faculty & Research

Physics

Hong, Jung-IlPROFESSOR

Websitespin-nanotech
E-mailjihong@dgist.ac.kr
Phone+82.53.785.6511
OfficeE2-311
LabE2-316

RESEARCH AREA

Electric and magnetic nanomaterial
Spintronics
Thin films of metal, semiconductor, and oxide material

ACADEMIC & CAREER EXPERIENCE

ACADEMIC	Northwestern University, USA
ACADEMIC	Ph. D. in Materials Science & Engineering
CAREER	USA
CAREER	Worked at Georgia Institute of Technology, University of California-San Diego, Rensselaer Polytechnic Institute

Our Researches

We are an experimental research group focusing on the development of functional novel materials with exotic properties based on spin and electron interactions. We explore broad range of material systems to understand the behaviors of spins and electrons in various metals, semiconductors, and oxides.

The topics of our interest include:
Exchange couplings between magnetic materials of different magnetic phases: ferromagnet (FM), ferrimagnet, and antiferromagnet (AFM),
Formation and manipulation of topological spin structures, Electron and spin dynamics, Magnetism in the nanostructure and at the interface,
Coupling of Magnetic, Electrical, and Mechanical properties, Hard and soft magnetic properties of low dimensional nanostructures of particles,
nanowires, and nanoplates, And any mysterious and/or unexplainable measurement results.

Representative Publications

2021	“Programmable dynamics of exchange-biased domain wall via spin-current-induced antiferromagnet switching”
	H. J. Kim, S. G. Je, K. Y. Moon, W. C. Choi, S. Yang, C. Kim, B. X. Tran, C. Hwang, J. I. Hong
	Advanced Science 8, 2100908 (2021)
2021	“Free tuning of exchange bias via resettable alignment of antiferromagnetic Neel axes using mechanical vibrations”
	H. J. Kim, S. Yoon, J. H. Ha, W. C. Choi, J. I. Hong
	Acta Materialia 210, 116821 (2021)
2020	“Direct demonstration of topological stability of magnetic skyrmions via topology manipulation”
	S. Je, H. S. Han, S. K. Kim, S. A. Montoya, W. L. Chao, I. S. Hong, E. E. Fullerton, K. S. Lee, K. J. Lee, M. Y. Im, J. I. Hong
	ACS Nano 14, 3251 (2020)
2019	“Field-free control of exchange bias by spin Hall currents”
	H. J. Kim, S. G. Je, D. H. Jung, K. S. Lee, J. I. Hong
	Applied Physics Letters 115, 021101 (2019)
2019	“Controllable magnetic anisotropy of ferromagnet/antiferromagnet bilayers coupled with piezoelectric strain”
	H. J. Kim, M. S. Jung, C. Y. You, J. I. Hong
	Acta Materialia 171, 170-175 (2019).
2019	“Dynamics of the Bloch point in an asymmetric permalloy disk”
	M. Y. Im, H. S. Han, M. S. Jung, Y. S. Yu. S. S. Lee, S. S. Yoon, W. Chao, P. Fisher, J. I. Hong, K. S. Lee
	Nature Communications 10, 593 (2019)

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English Faculty Faculty & Research Physics

Cho, Chang-Hee

Post author By znitinc1
Post date 2022년 12월 20일

Faculty & Research

Physics

Cho, Chang-HeePROFESSOR

Websitedgistfsnlab
E-mailchcho@dgist.ac.kr
Phone+82.53.785.6514
OfficeE2-310
LabE2-320

RESEARCH AREA

Semiconductor Photonics
Photonic Quantum Information Devices
Light-Matter Interactions

ACADEMIC & CAREER EXPERIENCE

DGIST	Dept. of Physics and Chemistry, Daegu, South Korea
DGIST	Professor (Sep. 2012 ~ Present)
POSTECH	Dept. of Physics, Pohang, South Korea
POSTECH	Visiting Professor (Aug. 2020 ~ Jul. 2021)
University of Pennsylvania	Philadelphia, PA, USA
University of Pennsylvania	Postdoctoral Researcher, Dept. of Materials Science and Engineering (Sep. 2009 ~ Aug. 2012)
Gwangju Institute of Science and Technology	Gwangju, Korea
	Ph. D. Materials Science and Engineering (Aug. 2009)
	M. S. Materials Science and Engineering (Feb. 2004)
Kyung Hee University	Seoul, Korea
Kyung Hee University	B. S. Physics (Feb. 2002)

Our Researches

Research fields in Future Semiconductor Nanophotonics Laboratory include ‘Future Semiconducting Materials’, ‘Next-generation Photonic Information Devices’, and ‘Light-Matter Interactions’. We explore new science and technologies in emerging semiconducting materials by tailoring the light-matter interactions. To this end, we pursue our studies to understand optical physics in such nanophotonic materials and to design future information devices.

Representative Publications

2019	“Room temperature polariton lasing in quantum heterostructure nanocavities”
	J. W. Kang, B. Song, W. Liu, S. J. Park, R. Agarwal, and C. H. Cho
	Science Advances 5, eaau9338 (2019).
2018	“Radial multi-quantum well ZnO nanorod arrays for nanoscale ultraviolet light-emitting diodes”
	J. W. Kang, B. H. Kim, H. Song, Y. R. Jo, S. H. Hong, G. Y. Jung, B. J. Kim, S. J. Park, and C. H. Cho
	Nanoscale 10, 14812-14818 (2018).
2016	“Periodically Diameter-Modulated Semiconductor Nanowires for Enhanced Optical Absorption”
	M. Ko, S. H. Baek, B. Song, J. W. Kang, S. A. Kim, and C. H. Cho
	Advanced Materials 28, 2504-2510 (2016)
2013	“Silicon coupled with plasmon nanocavities generates bright visible hot luminescence”
	C. H. Cho, C. O. Aspetti, J. Park, and R. Agarwal
	Nature Photonics 7, 285-289 (2013)
2012	“All-optical active switching in individual semiconductor nanowires”
	B. Piccione, C. H. Cho, L. K. van Vugt, and R. Agarwal
	Nature Nanotechnology 7, 640-645 (2012)
2011	“Tailoring hot-exciton emission and lifetimes in semiconducting nanowires via whispering-gallery nanocavity plasmons”
	C. H. Cho, C. O. Aspetti, M. E. Turk, J. M. Kikkawa, S. W. Nam, and R. Agarwal
	Nature Materials 10, 669-675 (2011)

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English Faculty Faculty & Research Physics

Lee, JaeDong

Post author By znitinc1
Post date 2022년 12월 20일

Faculty & Research

Physics

Lee, JaeDongPROFESSOR

Website
Light and Matter Theory Laboratory
E-mailjdlee@dgist.ac.kr
Phone+82.53.785.6510
OfficeE2-312
LabE2-322

RESEARCH AREA

Theoretical Condensed Matter Physics
Ultrafast Dynamics and Optics
Nonequilibrium Phenomena

ACADEMIC & CAREER EXPERIENCE

ACADEMIC	Ph. D., POSTECH, Korea
CAREER	Associate Professor at JAIST
	NIMS-ICYS Fellow
	Researcher at CALTECH
	Researcher at Tokyo University
	Researcher at MPI-FKF

Our Researches

Materials theory is a way to understand properties of emergent materials using theoretical approach. We use computational methods performed on model calculation and first-principle density functional theory to study new physics of the materials.

Main frameworks of our study

Semiconducting, magnetic, relativistic and superconducting properties of emergent materials.
Ultrafast time-resolved study of photophysical processes.
Advanced functional nano applications and their physical principles.

Representative Publications

2022	“Gate-tunable quantum pathways of high harmonic generation in graphene”
	S. Cha#, M. Kim#, Y. Kim#, S. Choi, S. Kang, H. Kim, S. Yoon, G. Moon, T. Kim, Y.W. Lee, G.Y. Cho, M.J. Park, C.-J. Kim, B.J. Kim, J.D. Lee, M.-H. Cho, and J. Kim*
	Nature Communications, 13, 6630 (2022)
2020	“Dual resonant sum frequency generation from two-dimensional materials”
	Y. Kim, H. Kim, H. Jang, J.-H. Ahn, and J.D. Lee
	Nano Letters, 20, 4530 (2020)
2019	“Anomalous electron dynamics induced through the valley magnetic domain: A pathway to the valleytronic current processing”
	Y. Kim and J.D. Lee*
	Nano Letters, 19, 4166 (2019)
2016	“Rectifying the optical-field-induced current in dielectrics: Petahertz diode”
	J.D. Lee*, W.S. Yun, and N. Park
	Physical Review Letters, 116, 057401 (2016).
2013	“Model for the attosecond resonant photoemission of copper dihalide: Evidence for high-order Fano resonance and a time-domain core-hole clock”
	J.D. Lee
	Physical Review Letters, 110, 247201 (2013)

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English Faculty Faculty & Research Physics

Lee, Shinbuhm

Post author By znitinc1
Post date 2022년 12월 20일

Faculty & Research

Physics

Lee, ShinbuhmASSOCIATE PROFESSOR

WebsiteXlab
E-maillee.shinbuhm@dgist.ac.kr
Phone+82.53.785.6524
OfficeE2-511
LabE2-517

RESEARCH AREA

Semiconductor
Energy
Sensor

ACADEMIC & CAREER EXPERIENCE

ACADEMIC	Ph. D., Seoul National University, Korea
CAREER	Postdoctoral researcher at University of Cambridge (UK)
CAREER	Postdoctoral researcher at Oak Ridge National Laboratory (US)

Our Researches

Semiconductor
Energy
Sensor

Representative Publications

2019	“Coherent-strained superconducting BaPb1-xBixO3 thin films by interface engineering.”
	Jinkwon Kim, Junsik Mun, Bongju Kim, Han Gyeol Lee, Daesu Lee, Tae Heon Kim, SHINBUHM LEE, Miyoung Kim, Seo Hyoung Chang, and Tae Won Noh
	Physical Review Materials 3, 113606 (2019)
2019	“Degradation mechanism of vanadium oxides films when grown on Y-stabilized ZrO2 above 500oC.”
	Songhee Choi, Junhyeob Oh, Ji-Hyun Lee, Jae Hyuck Jang, and SHINBUHM LEE*
	Advanced Engineering Materials 21, 1900918 (2019)
2019	“Sharp contrast in the electrical and optical properties of vanadium Wadsley (VmO2m+1, m > 1) epitaxial films selectively stabilized on (111)-oriented Y-stabilized ZrO2.”
	Songhee Choi, Jaeseok Son, Junhyeob Oh, Ji-Hyun Lee, Jae Hyuck Jang, and SHINBUHM LEE*
	Physical Review Materials 3, 063401 (2019)
2019	“Unraveling the origin and mechanism of nano-filament formation in polycrystalline SrTiO3 resistive switching memories.”
	Deok-Hwang Kwon, SHINBUHM LEE, Chan Soon Kang, Yong Seok Choi, Sung Jin Kang, Hae Lim Cho, Woonbae Sohn, Janghyun Jo, Seung-Yong Lee, Kyu Hwan Oh, Tae Won Noh, Roger. A. De Souza, Manfred Martin, and Miyoung Kim
	Advanced Materials 31, 1901322 (2019)
2018	“Electrochemically triggered metal–insulator transition between VO2 and V2O5.”
	Qiyang Lu, Sean R. Bishop, Dongkyu Lee, SHINBUHM LEE, Hendrik Bluhm, Harry L. Tuller, Ho Nyung Lee, and Bilge Yildiz*
	Advanced Functional Materials 28, 1803024 (2018)
2018	“Electrical and optical properties of VO2 polymorphic films grown epitaxially on Y-stabilized ZrO2.”
	Songhee Choi, Sung-Jin Chang, Junhyeob Oh, Jae Hyuck Jang, and SHINBUHM LEE*
	Advanced Electronic Materials 4, 1700620 (2018)

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English Faculty Faculty & Research Physics

Lee, Sungwon

Post author By znitinc1
Post date 2022년 12월 20일

Faculty & Research

Physics

Lee, SungwonASSOCIATE PROFESSOR

WebsiteBHD LAB.
E-mailswlee@dgist.ac.kr
Phone+82.53.785.6523
OfficeE2-512
LabE2-520

RESEARCH AREA

Ultrathin Device Fabrication
Bio sensors Development
Functional Material Development

ACADEMIC & CAREER EXPERIENCE

ACADEMIC	Ph. D., Yonsei University, Korea
CAREER	Postdoctoral researcher at Tokyo University

Our Researches

About – Our lab. is focusing on extremely light, flexible and bio-compatible devices and sensors that can monitor bio-information without our recognition. Ultra-flexible, sweat permeable devices for E-skin electronics & wearable devices are our current interested research in order to minimize the uncomfortableness during the long term health monitoring.

ULTRA-FLEXIBLE
Our lab, can fabricate ultrathin devices, utilizing few micron-thick devices. It is lighter than feather and can be freely deformed without electrical failure due to their thinness. This unique technique is very compatible with skin electronics or implantable electronics and since it does not cause uncomfortable feeling to the users.
WEARABLE
Combination of stretchable conductor and textile can make smart wearable devices such as strain sensor, bio-electrode and interconnection between E-skin sensors and measurement devices. Conductive, adhesive & printable ink is very promising material for realizing wearable smart devices.
BREATHABLE
In order to increase bio-compatibility of electronics, gas & liquid permeation is very important either on skin or implantable devices. Very recently we developed breathable electronics utilizing nanofiber substrate. As a result, sweat & oxygen or bio liquid circulation does not hindered during long term measurement for many applications.

Representative Publications

2020	“Stable and sustainable photoanodes using zinc oxide and cobalt oxide chemically gradient nanostructures for water-splitting applications”
	Koteeswara Reddy Nandanapalli*, Devika Mudusu, Jong-Sung Yu, Sungwon Lee‡
	Journal of Colloid and Interface Science 558, 9-20 (2020).
2019	“Breathable Nanomesh Humidity Sensor for Real-Time Skin Humidity Monitoring”
	Wooseong Jeong*, Jinkyu Song, Jihoon Bae, Koteeswara Reddy Nandanapalli, Sungwon Lee‡
	ACS Appl. Mater. Interfaces 11, 47, 44758-44763 (2019).
2019	“Functionalization of graphene layers and advancements in device applications”
	Koteeswara Reddy Nandanapalli*, Devika Mudusu, Sungwon Lee‡
	Carbon, 152, 954-985 (2019).
2019	“Accurate,hysteresis-free temperature sensor for healthmonitoring using a magnetic sensor and pristinepolymer”
	Wooseong Jeong*, Mijin Kim, Jae-Hyun Ha, Nora Asyikin Binti Zilkifli, Jung-il Hong, CheolGi Kim, Sungwon Lee‡
	RSC Advances, 9, 7885-7889 (2019).
2018	“A photonic sintering derived Ag flake/nanoparticle-based highly sensitive stretchable strain sensor for human motion monitoring”
	Inhyuk Kim, Kyoohee Woo‡, Zhaoyang Zhong, Pyungsam Ko, Yunseok Jang, Minhun Jung, Jeongdai Jo, Sin Kwon, Seung-Hyun Lee, Sungwon Lee, Hongseok Youn, Jooho Moon‡
	Nanoscale, 10, 7890-7897 (2018).
2018	“Ultrathin silver telluride nanowire films and gold nanosheet electrodes for a flexible resistive switching device”
	Ho Jun Seo*, Wooseong Jeong, Sungwon Lee‡, Geon Dae Moon‡
	Nanoscale, 10. 5424-5430 (2018).

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English Faculty Faculty & Research Physics

You, Chun-Yeol

Post author By znitinc1
Post date 2022년 12월 20일

Faculty & Research

Physics

You, Chun-YeolPROFESSOR

WebsiteSPIN Lab.
E-mailcyyou@dgist.ac.kr
Phone+82.53.785.6522
OfficeE2-513
LabE2-521

RESEARCH AREA

Spintronics, Condensed Matter Physics
Magnetic Materials & Thin Films
Micromagnetic Simulations
Spin Nano-Devices

ACADEMIC & CAREER EXPERIENCE

ACADEMIC	Ph. D., KAIST, Korea
CAREER	2002.08~2016.03: Professor, Dept. of Physics, Inha University, Korea
	2015.08~2016.01: Consultant, SK-Hynix, Korea
	1997.09~2002.08: Post-Doc, Argonne National Lab., USA

Our Researches

Our group has broad interests in many fields of magnetism, from current hot issues to fundamental topics, as follows.
Finding and studying exotic physical/magnetic phenomena are the main goals of our research.

For more details, contact cyyou@dgist.ac.kr

Spin based next generation memory and logic devices
Skyrmion Dynamics
Spin Neuromorphic Nano-Devices
Spin Orbit Torque (SOT) including spin Hall, Rashba, Dzyaloshinskii-Moriya Interaction
Brillouin Light Scattering (BLS) measurement and analysis
Micromagnetics with OOMMF, Mumax3
Domain Wall Motion (Spin Transfer Torque, Spin Orbit Torque)
Transport Properties of Ferromagnetic Materials
Magneto-Optical Kerr Effect (MOKE)

Representative Publications

2019	“Quantitative accordance of Dzyaloshinskii-Moriya interaction between domain-wall and spin-wave dynamics”
	Dae-Yun Kim, Nam-Hui Kim, Yong-Keun Park, Min-Ho Park, Joo-Sung Kim, Yune-Seok Nam, Jinyong Jung, Jaehun Cho, Duck-Ho Kim, June-Seo Kim, Byoung-Chul Min, Sug-Bong Choe, and Chun-Yeol You
	Phys. Rev. B 100, 24419 (2019)
	DOI: 10.1103/PhysRevB.100.224419
2019	“Limited Stochastic Current for Energy-Optimized Switching of Spin-Transfer-Torque Magnetic Random-Access Memory”
	Eunchong Baek, Indra Purnama, Chun-Yeol You
	Phys. Rev. Applied 12, 064004 (2019)
	DOI: 10.1103/PhysRevApplied.12.064004
2019	“Eigen damping constant of spin waves in ferromagnetic nanostructure”
	Indra Purnama, Jung-Hwan Moon, Chun-Yeol You
	Sci. Rep. 9, 13226 (2019)
	DOI: 10.1038/s41598-019-49872-w
2019	“Magneto-optic property measurement of bismuth substituted yttrium iron garnet films prepared by metal-organic-decomposition method at the 1310-nm and 1550-nm wavelengths”
	Yudeuk Kim, David Juseong Bang, Yonghwan Kim, Jinyong Jung, Namjung Hur, Chun-Yeol You, Kyong Hon Kim
	J. Magn. Magn. Mater., 492, 1655673 (2019).
	DOI: 10.1016/j.jmmm.2019.165673
2019	“Long-range chiral exchange interaction in synthetic antiferromagnets”
	Dong-Soo Han, Kyujoon Lee, Jan-Philipp Hanke, Yuriy Mokrousov, Kyoung-Whan Kim, Woosuk Yoo, Youri L. W. van Hees, Tae-Wan Kim, Reinoud Lavrijsen, Chun-Yeol You, Henk J. M. Swagten, Myung-Hwa Jung & Mathias Kläui
	Nature Materials, 18, 703 (2019)
	DOI: 10.1038/s41563-019-0370-z
2019	“Skyrmions in magnetic insulators warm up”
	Chun-Yeol You
	Nature Electronics 2, 176-177 (2019)
	DOI: 10.1038/s41928-019-0250-1
2019	“Correlation between interfacial Dzyaloshinskii–Moriya interaction and interfacial magnetic anisotropy of Pt/Co/MgO structures”
	Woo-Yeong Kim, Hyung Keun Gweon, Kyung-Jin Lee, Chun-Yeol You
	Appl. Phys. Express,12, 053007 (2019).
	DOI: 10.7567/1882-0786/ab181c

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