NANOSCALE SURFACE SCIENCE LABORATORY

Research Articles († Equal contributions, * Corresponding authors)

2024

Tae Gyu Rhee†, Nguyen Huu Lam†, Yeong Gwang Kim, Minseon Gu, Jinwoong Hwang, Aaron Bostwick, Sung-Kwan Mo, Seung-Hyun Chun, Jungdae Kim*, Young Jun Chang*, Byoung Ki Choi*, "Emergence of two distinct phase transitions in monolayer CoSe2 on graphene", Nano Convergence 11, 21 (2024)

Jang-Su Jung,  Venkatraju Jella, Swathi Ippili, Yun-Ho Kim, Trinh Thi Ly, Jungdae Kim, Ji-Ho Eom, Heejun Yang, Soon-Gil Yoon*, "Transfer-free robust n-type graphene feld-effect transistors for digital logic electronic devices", Carbon 225, 119126 (2024)

2023

Nguyen Huu Lam†, Jae Hyeok Ko†, Byoung Ki Choi†, Trinh Thi Ly, Giyeok Lee, Kyuha Jang, Young Jun Chang*, Aloysius Soon*, and Jungdae Kim*, "Direct characterization of intrinsic defects in monolayer ReSe2 on graphene", Nanoscale Advances 5, 5513-5519 (2023)

Nguyen Huu Lam, Phuong Nguyen, Sunglae Cho, Jungdae Kim*, "Bandgap reduction at wrinkles on the cleavage surfaces of GeSe single crystals", Surface Science 730, 122251 (2023)

2022

Ganbat Duvjir†, Jee-Ahn Jung†, Trinh Thi Ly, Nguyen Huu Lam, Young Jun Chang, Sunghun Lee*, Hanchul Kim*, Jungdae Kim*, "Fine structure of the charge density wave in bulk VTe2", APL Materials 10, 111102 (2022)

Nguyen Huu Lam†, Phuong Lien Nguyen†, Byoung Ki Choi†, Trinh Thi Ly, Ganbat Duvjir, Tae Gyu Rhee, Yong Jin Jo, Tae Heon Kim, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Younghun Hwang*, Young Jun Chang*, Jaekwang Lee*, Jungdae Kim*, "Controlling Spin−Orbit Coupling to Tailor Type-II Dirac Bands", ACS Nano 16, 11227−11233 (2022)

Van Quang Nguyen, Thi Ly Trinh, Cheng Chang, Li-Dong Zhao, Thi Huong Nguyen, Van Thiet Duong, Anh Tuan Duong, Jong Ho Park, Sudong Park, Jungdae Kim*, and Sunglae Cho*, “Unidentified major p-type source in SnSe: Multivacancies”, NPG Asia Materials 14 (1), 1-7 (2022)

Trinh Thi Ly†, Yun-Jae Lee†, Byoung Ki Choi†, Hojun Lee, Hyuk Jin Kim, Ganbat Duvjir, Nguyen Huu Lam, Kyuha Jang, Krisztián Palotás, Young Jun Chang*, Aloysius Soon*, and Jungdae Kim*, “Direct observation of trapped charges at ReSe2 and graphene heterojunctions”, Applied Surface Science 579, 152187 (2022) 

Su Jae Kim†, Yong In Kim†, Bipin Lamichhane†, Young-Hoon Kim, Yousil Lee, Chae Ryong Cho, Miyeon Cheon, Jong Chan Kim, Hu Young Jeong, Taewoo Ha, Jungdae Kim, Young Hee Lee, Seong-Gon Kim*, Young-Min Kim*, and Se-Young Jeong*, “Flat-surface-assisted and self-regulated oxidation resistance of Cu (111)”, Nature 603 (7901), 434 (2022) 

2021

Yun-Jae Lee†, Trinh Thi Ly†, Taehun Lee, Krisztián Palotás*, Se Young Jeong*, Jungdae Kim*, and Aloysius Soon*, “Completing the Picture of Initial Oxidation on Copper”, Applied Surface Science 562, 150148 (2021) 

Mengke Liu, Hyoungdo Nam, Jungdae Kim, Gregory A Fiete, and Chih-Kang Shih*, “Influence of Nanosize Hole Defects and their Geometric Arrangements on the Superfluid Density in Atomically Thin Single Crystals of Indium Superconductor”, Physical Review Letters 127 (12), 127003 (2021)

Ganbat Duvjir†, Byoung Ki Choi†, Trinh Thi Ly, Nguyen Huu Lam, Kyuha Jang, Duc Dung Dang, Young Jun Chang*, and Jungdae Kim*, “Multiple charge density wave phases of monolayer VSe2 manifested by graphene substrates”, Nanotechnology 32 (36), 364002 (2021)

Nguyen Huu Lam, Younghun Hwang*, and Jungdae Kim*, “Intrinsic defects and local charge ordering of single-crystal FeTe”, Journal of the Korean Physical Society 79 (6), 552-556 (2021)

Trinh Thi Ly†, Jungmin Park†, Kyoo Kim†, Hyo‐Bin Ahn, Nyun Jong Lee, Kwangsu Kim, Tae‐Eon Park, Ganbat Duvjir, Nguyen Huu Lam, Kyuha Jang, Chun‐Yeol You, Younghun Jo, Se Kwon Kim, Changgu Lee*, Sanghoon Kim*, and Jungdae Kim*, “Direct Observation of Fe‐Ge Ordering in Fe5− xGeTe2 Crystals and Resultant Helimagnetism”, Advanced Functional Materials 31 (17), 2009758 (2021)

Tae Gwan Park, Byoung Ki Choi, Junho Park, Jungdae Kim, Young Jun Chang*, and Fabian Rotermund*, “Interlayer Coupling and Ultrafast Hot Electron Transfer Dynamics in Metallic VSe2/Graphene van der Waals Heterostructures”, ACS nano 15 (4), 7756 (2021)

2020

Ganbat Duvjir, Baatarchuluun Tsermaa, Byoung Ki Choi, Young Jun Chang, and Jungdae Kim*, “Lattice Dynamics Driven by Tunneling Current in 1T′ Structure of Bilayer VSe2”, Journal of the Korean Physical Society 77 (11), 1031-1034 (2020)

Anh-Tuan Pham, Thi Hoa Vu, Chang Cheng, Thi Ly Trinh, Ji-Eun Lee, Hyejin Ryu, Choongyu Hwang, Sung-Kwan Mo, Jungdae Kim, Li-dong Zhao, Anh-Tuan Duong*, and Sunglae Cho*, “High-Quality SnSe2 Single Crystals: Electronic and Thermoelectric Properties”, ACS Applied Energy Materials 3 (11), 10787-10792 (2020)

Thi Huong Nguyen, Rakwon Kang, Anh Tuan Pham, Cao Khang Nguyen, Anh Tuan Duong, Thang Bach Phan, Jungdae Kim, and Sunglae Cho*, “Se/Sn flux ratio effects on epitaxial SnSe thin films; crystallinity & domain rotation”, Journal of Alloys and Compounds 840, 155680 (2020)

Trinh Thi Ly, Ganbat Duvjir, Nguyen Huu Lam, Byoung Ki Choi, Young Jun Chang, and Jungdae Kim*, “√3×2 and √3×√7 Charge Density Wave Driven by Lattice Distortion in Monolayer VSe2”, Journal of the Korean Physical Society 76 (5), 412-415 (2020)

2019

Ganbat Duvjir†, Byoung Ki Choi†, Trinh Thi Ly, Nguyen Huu Lam, Seung-Hyun Chun, Kyuha Jang, Aloysius Soon, Young Jun Chang*, and Jungdae Kim*, “Novel polymorphic phase of two-dimensional VSe2: The 1T' structure and its lattice dynamics”, Nanoscale 11 (42), 20096 (2019)

Ly Thi Trinh†, Taehun Lee†, Sanghwa Kim, Yun-Jae Lee, Ganbat Duvjir, Kyuha Jang, Krisztian Palotas, Se-Young Jeong*, Aloysius Soon*, and Jungdae Kim*, “Growing Ultrathin Cu2O Films on Highly Crystalline Cu(111): A Closer Inspection from Microscopy and Theory”, The Journal of Physical Chemistry C 123 (20), 12716-12721 (2019)

Iksu Jang, Ganbat Duvjir, Byoung Ki Choi, Jungdae Kim, Young Jun Chang, and Ki-Seok Kim*, “Universal renormalization group flow toward perfect Fermi-surface nesting driven by enhanced electron-electron correlations in monolayer vanadium diselenide”, Physical Review B 99 (1), 014106 (2019)

2018

Ganbat Duvjir, Byoung Ki Choi, Iksu Jang, Søren Ulstrup, Soonmin Kang, Trinh Thi Ly, Sanghwa Kim, YoungHwan Choi, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Je-Geun Park, Raman Sankar, Ki-Seok Kim*, Jungdae Kim*, and Young Jun Chang*, “Emergence of a metal-insulator transition and high temperature charge density waves in VSe2 at the monolayer limit”, Nano letters 18 (9), 5432-5438 (2018)

Van Quang Nguyen, Jungdae Kim, and Sunglae Cho*, “A Review of SnSe: Growth and Thermoelectric Properties”, Journal of the Korean Physical Society 72 (8), 841-857 (2018)

Trinh Thi Ly and Jungdae Kim*, “Influence of the State of the Tungsten Tip on STM Topographic Images of SnSe Surfaces”, Journal of the Korean Physical Society 72 (6), 658-661 (2018)

2017

Trinh Thi Ly†, Ganbat Duvjir†, Taewon Min, Jinho Byun, Taehoon Kim, Mahmoud M. Saad, Nguyen Thi Minh Hai, Sunglae Cho, Jaekwang Lee*, and Jungdae Kim*, “Atomistic study of the alloying behavior of crystalline SnSe1-xSx”, Physical Chemistry Chemical Physics 19 (32), 21648 (2017)

Ganbat Duvjir, Taewon Min, Trinh Thi Ly, Taehoon Kim, Anh-Tuan Duong, Sunglae Cho, SH Rhim, Jaekwang Lee*, and Jungdae Kim*, “Origin of p-type characteristics in a SnSe single crystal”, Applied Physics Letters 110 (26), 262106 (2017)

2016

Anh Tuan Duong, Van Quang Nguyen, Ganbat Duvjir, Suyong Kwon, Jae Yong Song, Jae Ki Lee, Ji Eun Lee, SuDong Park, Taewon Min, Jaekwang Lee, Jungdae Kim, and Sunglae Cho*, “Achieving ZT=2.2 with Bi-doped n-type SnSe single crystals”, Nature Communications 7, 13713 (2016)

Sang-ui Kim, Anh-Tuan Duong, Sunglae Cho, SH Rhim*, and Jungdae Kim*, “A microscopic study investigating the structure of SnSe surfaces”, Surface Science 651, 5-9 (2016)

2015

Jungdae Kim, Hyoungdo Nam, Shengyong Qin, Sang-ui Kim, Allan Schroeder, Daejin Eom, and Chih-Kang Shih*, “Compact low temperature scanning tunneling microscope with in-situ sample preparation capability”, Review of Scientific Instruments 86 (9), 093707 (2015)

Jungdae Kim, Shengyong Qin, Yi Zhang, Wenguang Zhu, and Chih-Kang Shih*, “Influence of quantum well states on the formation of Au–Pb alloy in ultra-thin Pb films”, Surface Science 632, 174-179 (2015)

2014

Seunghun Lee†, Ji Young Kim†, Tae-Woo Lee, Won-Kyung Kim, Bum-Su Kim, Ji Hun Park, Jong-Seong Bae, Yong Chan Cho, Jungdae Kim, Min-Wook Oh, Cheol Seong Hwang*, and Se-Young Jeong*, “Fabrication of high-quality single-crystal Cu thin films using radio-frequency sputtering”, Scientific reports 4, 6230 (2014)

2013

Deming Shu*, Evgeny Nazaretski, Jungdae Kim, Hanfei Yan, Kenneth Lauer, Brian Mullany, Dennis Kuhne, Jörg Maser, and Yong S Chu, “Optomechanical design of a multilayer Laue lens test bed for 10-nm focusing of hard X-rays”, Journal of Physics: Conference Series 463 (1), 012029 (2013)

Jisun Kim, Chendong Zhang, Jungdae Kim, Hongjun Gao, Mei-Yin Chou, and Chih-Kang Shih*, “Anomalous phase relations of quantum size effects in ultrathin Pb films on Si (111)”, Physical Review B 87 (24), 245432 (2013)

Jungdae Kim, K Lauer, H Yan, YS Chu, and E Nazaretski, “Compact prototype apparatus for reducing the circle of confusion down to 40 nm for x-ray nanotomography”, Review of Scientific Instruments 84 (3), 035006 (2013)

E Nazaretski, Jungdae Kim, H Yan, K Lauer, D Eom, D Shu, J Maser, Z Pešić, U Wagner, C Rau, and YS Chu, “Performance and characterization of the prototype nm-scale spatial resolution scanning multilayer Laue lenses microscope”, Review of Scientific Instruments 84 (3), 033701 (2013)

Hanfei Yan*, Yong S Chu, Jörg Maser, Evgeny Nazaretski, Jungdae Kim, Hyon Chol Kang, Jeffrey J Lombardo, and Wilson KS Chiu,” Quantitative x-ray phase imaging at the nanoscale by multilayer Laue lenses”, Scientific reports 3 (1), 1-5 (2013)

Hyon Chol Kang*, Hanfei Yan, Yong S Chu, Su Yong Lee, Jungdae Kim, Evgeny Nazaretski, Chan Kim, Okkyun Seo, Albert T Macrander, G Brian Stephenson, and Jörg Maser, “Oxidation of PtNi nanoparticles studied by a scanning X-ray fluorescence microscope with multi-layer Laue lenses”, Nanoscale 5 (16), 7184-7187 (2013)

2012

Jungdae Kim, Victor Chua, Gregory A. Fiete, Hyoungdo Nam, Allan H. MacDonald and Chih-Kang Shih*, “Visualization of geometric influences on proximity effects in heterogeneous superconductor thin films”, Nature Physics 8 (6), 464-469 (2012)

2011

Jungdae Kim, Gregory A Fiete, Hyoungdo Nam, AH MacDonald, and Chih-Kang Shih*, “Universal quenching of the superconducting state of two-dimensional nanosize Pb-island structures”, Physical Review B 84 (1), 014517 (2011)

2010

Jungdae Kim, Shengyong Qin, Wang Yao, Qian Niu, MY Chou, and Chih-Kang Shih*, "Quantum size effects on the work function of metallic thin film nanostructures", Proceedings of the National Academy of Sciences 107 (29), 12761-12765 (2010)

2009

Shengyong Qin, Jungdae Kim, Qian Niu, and Chih-Kang Shih*, "Superconductivity at the Two-Dimensional Limit", Science 324 (5932), 1314-1317 (2009)