In progress/Submitted
NV- center, H. Lee, J. H. Lee, C. G. Van de Wall, and M. Choi†
CWO, M. Choi† , M. Turiansky, B.-Q. Zhao, and C. G. Van de Walle,
Nb3X8, H. Lee, Y. Cho, M. Choi† (collaborative work with experiment)
Crystal orientation-dependent oxygen evolution activity in IrO2 films, G. Noh#, H. Lee#, M. Patton, T. G. Yun, Y. Hong, I. S. Lee, S.-Y. Chung, C.-B. Eom, M. Choi†, and S.-Y. Choi†, [#Equal contribution;† Co-corresponding author].
Self-Healing of Cracked Oxides by Harnessing Flexoelectricity and Polar Discontinuity, S.-Y. Hwang, L. Du, X. Wu, D. Lu, I. Kim, Y. Yeo, C.-H. Yang, M. Choi, M.-G. Han, Y. Zhu, and S.-Y. Choi,
Improving 2D-ness for low dimensional oxide thermoelectrics, D. Shin#, I. Kim#, M.-S. Kim, Y.-Q. Zhang, W. T. Lim, S. -Y. Choi, M. Choi†, H. Ohta†, and W. S. Choi† , [#Equal contribution;† Co-corresponding author].
2025
Impact of dopants and strains on the oxygen vacancy formation in VO2, I. Kim, H.-Y. Ryu, and M. Choi†, Curr. Appl. Phys. 71, 125 (2025).
2024
First-principles study on lanthanide dopants in BaTiO3, H. Lee,# M. Ouk,# I. Kim,# B. Kim, S. Bae, S. Roh, I. Tanaka, and M. Choi, Curr. Appl. Phys. 68, 238 (2024) [#Equal contribution].
Crystallographic defects in Weyl semimetal LaAlGe, I. Kim, B. Kang, H. Kim, and M. Choi, Phys. Rev. Mater. 8, 054203 (2024). (arxiv: 2401.04927)
Water-mediated exsolution of nanoparticles in alkali metal-doped perovskite structured triple-conducting oxygen electrocatalysts for reversible cells, K. Park#, M. Saqib#, H. Lee#, D. shin, M. Jo, G. -M. Park, M. Asif, S. H. Kim, S. Kim, K. -S. Lee, R. O'hayre, M. Choi,† S. -J. Song,† and J. -Y. Park,† Energy Environ. Sci. 17, 1175 (2024) . [#Equal contribution;† Co-corresponding author].
Flexoelectrically Augmented Triboelectrification Enabled Self-Power Wireless Smart Home Control System, D. S. Kong, K. H. Kim, Y. C. Hu, J. Kim, I. Kim, J. Lee, J. Lee, W. H. Shon, H. Yoo, C.-U. Ro, S. Lee, H. Jeen, M. Lee, M. Choi, and J. H. Jung, Nano Energy 119, 109069 (2024) .
2023
Fluorine and related complexes in α-Al2O3, M. Choi and C. G. Van de Walle, J. Appl. Phys. 134, 064501 (2023).
Hierarchically porous Ni foam-supported Co and Sn doped Ni3S2 nanosheets for oxygen evolution reaction electrocatalysts, W. Y. An#, H. Lee#, S. R. Choi, S. Choi, Y.-K. Lee, H.-S. Cho, M. Choi,† and J. -Y. Park,† J. Mater. Chem. A 11, 5734 (2023) [#Equal contribution;† Co-corresponding author]. See also Error correction (Author notification error)
2022
Spin crossover of the octahedral Co ion in Co3S4: Emergence of hidden magnetism, I. Kim, H. Lee, H. H. Nahm, and M. Choi, Phys. Rev. Research 4, 033171 (2022).
Out-of-plane ferromagnetism in two-dimensional 1T-RhO2, H. Lee and M. Choi, Phys. Rev. B 106, 064414 (2022).
Synthesis of hierarchically porous Ni form-supported heazlewoodite Ni3S2 nanorod electrocatalysts for highly efficient oxygen evolution reaction, D. Y. Kim, H. Lee, S. R. Choi, S. Choi, W. Y. An, H.-S. Cho, M. Choi,† and J. -Y. Park,† J. Alloy. Compd. 914, 165305 (2022). [† Co-corresponding author]
Hydrogen passivation of oxygen vacancies in LaAlO3, M. Choi, Curr. Appl. Phys. 39, 154 (2022).
First-principles study of oxygen vacancy formation in strained oxides, I. Kim, H. Lee, and M. Choi, J. Appl. Phys. 131, 075106 (2022).
2021
Photocatalytic and photoelectrochemical activities of strained BiVO4, M. Choi, Appl. Phys. Lett. 118, 161901 (2021).[Featured article & my interview AIP Scilight]
Defect engineering of the magnetic phase in EuTiO3 epitaxial thin films, D. Shin,# I. Kim,# S. Song, Y.-S. Seo, J. Hwang, S. Park, M. Choi† and W. S. Choi†, J. Am. Ceram. Soc. 104, 4606 (2021). [#Equal contribution;† Co-corresponding author].
First-principles study of antiferromagnetic spinels, I. Kim, H. H. Nahm, and M. Choi, Curr. Appl. Phys. 22, 65 (2021).
Deep proton inserion assisted by oxygen vacancies for long-term memory in VO2 Synaptic transistor, C. Oh, I. Kim, J. Park, Y. Park, M. Choi†, and J. Son†, Adv. Electron. Mater. 7, 2000802 (2021). [† Co-corresponding author].
2016-2020
First-principles investigation of two dimensional 1T-TiO2 , I. Kim, G. Lee, and M. Choi, Phys. Rev. Mater. 4, 094001 (2020).
First-principles study of anisotropic oxygen diffusion in PrBaCo2O5.5, I. Kim and M. Choi, ACS Omega 4, 10960 (2019).
Three-Dimensional Atomistic Tomography of W-based Alloyed Two-Dimensional Transtion Metal Dichalcogenides, J. Seo, K.-J. Hwang, S.-I. Baik, S. Lee, B. Cho, E. Jo, M. Choi, M. G. Hahm, and Y.-J. Kim, ACS Appl. Mater. Interfaces 10, 30640 (2018)
Dynamic mechanical control of local vacancies in NiO thin films, D. Seol, S. M .Yang, S. Jesse, M. Choi, I. Hwang, T. Choi, B. H. Park, S. V. Kalinin, and Y. Kim, Nanotechnology 29, 275709 (2018).
Strain-Enhanced p Doping in Monolayer MoS2, M. Choi, Phys. Rev. Appl. 9, 024009 (2018).
Enhanced electrocatalytic activity via phase transitions in strongly correlated SrRuO3 thin fims, S. A. Lee, S. Oh, J.-Y. Hwang, M. Choi, C. Youn, J. W. Kim, S. H. Chang, S. Woo, J.-S. Bae, S. Park, Y.-M. Kim, S. Lee, T. Choi, S. W. Kim, and W. S. Choi, Energy Environ. Sci. 10, 924 (2017).
Doping-induced bandgap tuning of α-Ga2O3 for ultraviolet lighting, M. Choi and J. Son, Curr. Appl. Phys. 17, 712 (2017). [Invited Paper]
Reversible phase modulation and hydrogen storage in multivalent VO2 epitaxial thin films, H. Yoon†, M. Choi†, T.-W. Lim, H. Kwon, K. Ihm, J. K. Kim, S.-Y. Choi, and J. Son, Nature Mater. 15, 1113 (2016) [† Equal contribution]. [Press (in Korean): 경북일보, 동아사이언스, 베리타스알파]
Ab-initio Study of Pressure Effects and Hydrogen Impurity in HgO, M. Choi and C.-H. Park, J. Korean Phys. Soc. 68, 1476 (2016).
Phase transitions via selective elemental vacancy engineering in complex oxide thin films, S. A. Lee, H. Jeong, S. Woo, J.-Y. Hwang, S.-Y. Choi, S.-D. Kim, M. Choi, S. Roh, H. Yu, J. Hwang, S. W. Kim, and W. S. Choi, Sci. Rep. 6, 23649 (2016).
Insights into cationic ordering in Re-based double perovskite oxides, T.-W. Lim, S.-D. Kim, K.-D. Sung, Y.-M. Rhyim, H. Jeen, J. Yun, K.-M. Song, S. Lee, S.-Y. Chung, K.-H. Kim, M. Choi†, and S.-Y. Choi†, Sci. Rep. 6, 19746 (2016) [† Co-corresponding author].
Atomic-Scale Observation of Oxygen Substitution and Its Correlation with Hole-Transport Barriers in Cu2ZnSnSe2 Thin-Film Solar Cells, J.H. Kim, S.-Y.Choi, M. Choi, T. Gershon, Y. S. Lee, W. Wang, B. Shin, and S.-Y. Chung, Adv. Energy Mater. 6, 1501902 (2016) [Highlighted as Frontispiece].
2005-2015
Assessment of strain-generated oxygen vacancies using SrTiO3 bicrystals, S.-Y. Choi†, S.-D. Kim, M. Choi†, H.-S. Lee, J. Ryu, N. Shibata, T. Mizoguchi, E. Tochigi, T. Yamamoto, S.-J. L. Kang, and Y. Ikuhara, Nano Lett. 15, 4129 (2015) [† Co-corresponding author].
Low interfacial contact resistance of Al-graphene composites via interface engineering, M. G. Hahm, J. Nam, M. Choi, et al., Nanotechnol. 26, 215603 (2015).
Charge-transfer-based Gas Sensing Using Atomic-layer MoS2, B. Cho, M. G. Hahm, M. Choi, et al., Sci. Rep. 5, 8052 (2015). [Press (in Korean): 연합뉴스, 디지털타임즈, 경남도민일보]
Carbon-induced trapping levels in oxide dielectrics, H. Tailor, J. L. Lyons, M. Choi, A. Janotti, and C. G. Van de Walle, J. Vac. Sci. Technol. A 33, 01A120 (2015).
First-principles study of point defects in chalcopyrite ZnSnP2, Y. Kumagai, M. Choi, Y. Nose, and F. Oba, Phys. Rev. B 90, 125502 (2014).
Vacancies and small polarons in SrTiO3, A. Janotti, J. B. Varley, M. Choi, and C. G. Van de Walle, Phys. Rev. B 90, 085202 (2014).
Hydrogen Passivation of Impurities in Al2O3, M. Choi, A. Janotti, and C. G. Van de Walle, ACS Appl. Mater. Interfaces 6, 4149 (2014).
Native point defects in LaAlO3: A hybrid functional study, M. Choi, A. Janotti, and C. G. Van de Walle, Phys. Rev. B 88, 214117 (2013).
Impact of carbon and nitrogen impurities in high-κ dielectrics on metal-oxide-semiconductor devices, M. Choi, J. L. Lyons, A. Janotti, and C. G. Van de Walle, Appl. Phys. Lett. 102, 142902 (2013).
Impact of native defects in high-κ dielectric oxides on GaN/oxide metal-oxide-semiconductor devices, M. Choi, J. L. Lyons, A. Janotti, and C. G. Van de Walle, Phys. Status Solidi B 250, 787 (2013).
Defects at Ge/oxide and III-V/oxide interfaces, C. G. Van de Walle, M. Choi, J. R. Weber, J. L. Lyons, and A. Janotti, Microelec. Eng. 109, 211 (2013). [Invited Paper]
Native defects and dangling bonds in α-Al2O3 M. Choi, A. Janotti, and C. G. Van de Walle, J. Appl. Phys. 113, 044501 (2013).
Anti-ferrodistortive-Like Oxygen-Octahedron Rotation Induced by the Oxygen Vacancy in Cubic SrTiO3, M. Choi, F. Oba, Y. Kumagai, and I. Tanaka, Adv. Mater. 25, 86 (2013). [See also Advanced Science News]
Electronic and structural properties of the oxygen vacancy in BaTiO3, M. Choi, F. Oba, and I. Tanaka, Appl. Phys. Lett. 98, 172901 (2011).
Hybrid density functional study of oxygen vacancies in KTaO3 and NaTaO3, M. Choi, F. Oba, and I. Tanaka, Phys. Rev. B 83, 214107 (2011).
Point defects in ZnO: An approach from first principles, F. Oba, M. Choi, A. Togo, A. Seko, and I. Tanaka, Sci. Technol. Adv. Mater. 12, 034302 (2011). [Review Paper]
Electronic structures of dynamically stable As2O3, Sb2O3, and Bi2O3 crystal polymorphs, A. Matsumoto, Y. Koyama, A. Togo, M. Choi, and I. Tanaka, Phys. Rev. B 83, 214110 (2011).
Native defects in oxide semiconductors: a density functional approach, F. Oba, M. Choi, A. Togo, A. Seko, and I. Tanaka, J. Phys.: Condens. Matter 22, 384211 (2010).[Selected as Journal Highlights of 2010]
Role of Ti Antisitelike Defects in SrTiO3, M. Choi, F. Oba, and I. Tanaka, Phys. Rev. Lett. 103, 185502 (2009).
27Al NMR Chemical Shifts in Oxide Crystals : A First-Principles Study, M. Choi, K. Matsunaga, F. Oba, and I. Tanaka, J. Phys. Chem. C 113, 3869 (2009).
First-principles study of native defects and lanthanum impurities in NaTaO3, M. Choi, F. Oba, and I. Tanaka, Phys. Rev. B 78, 014115 (2008).
Effect of Tm3+ on the strong magnetic anisotropy in the high TC superconductor TmBa2Cu3Oy, J. H. Lee, M. Choi, D. Ahmad, S. S. Ahn, I. S. Park, D. J. Kim, Y. C. Kim, M. S. Jang, M. H. Sohn, Rock-Kil Ko, and D. Y. Jeong, J. Korean Phys. Soc. 50, 1180 (2007).
Examination of Current-Induced Magnetic Field in the Slab Geometry: Possible Origin of Spin Hall Effect, B. Abdullaev, M. Choi, and C. H. Park, J. Korean Phys. Soc. 49, 638 (2006).
Microscopic origin of lattice instability in ferroelectric PbTiO3, M. Choi, D. H. Kim, and C. H. Park, J. Korean Phys. Soc. 49, 481 (2006).
First Principles Study of Hydrogen Impurity in HgO, M. Choi, H. H. Nahm, and C. H. Park, J. Korean Phys. Soc. 47, 304 (2005).