Still under construction!
#1. J. Lee et al., Selective reduction in epitaxial SrFe0.5Co0.5O2.5 and its reversibility (2024) - submitted
#2. S. Ryu et al., Strain-driven charge localization in lightly hole-doped manganite epitaxial films (2024) - submitted
#3. S. Singh et al., Influence of nitrogen doping on structure and magnetic properties of CeFe12 films (2024) - submitted
#4. In collaboration with Lin Hao group - submitted
#5. Y. D. Mun and S. Jung et al., Effect of helium ion-beam irradiation on physical properties of Si-doped Ga2O3 epitaxial thin films - submitted
#6. In collaboration with Jongmok Ok group - submitted
#7. S. Ryu et al., Oxygen-modulation-induced magnetic enhancement in NSMO (2022) - In preparation
#8. D. Cho et al., Self-assembly of Co-realated nano-particles and its magnestism (2023) - In preparation
#9. S. Jung et al., Thermal stability of rare-earth lean permanent magnet film (2024) - In preparation
#10. S. Jung and Y. S. Mun (equal contribution) et al., Epitaxial synthesis of Bi2Fe4O9 epitaxial thin films on mullite crystal (2024) - In preparation
#11. H. Chung et al., Topotactic reduction in PBCO epitaxial thin films and physical properties - In preparation
#12. Y. D. Mun et al., Real-time transport and valence tuning in PBCO epitaxial thin films - In preparation
2024
2023
93. D. Kong, K. Kim, Y. Hu, J. Kim, I. Kim, J. Lee, J. Lee, W. Shon, H. Yoo, C. Ro, S. Lee, H. Jeen, M. Lee, M. Choi, J. Jung*, Flexoelectrically augmented triboelectrification enabled self-power wireless smart home control system, accepted for publication in Nano Energy (2023)
92. K. Kang, F. Kato, A. Nakano, I. Terasaki*, T. Endo, Y. Matsuo, H. Jeen*, and H. Ohta*, Fabrication and Thermoelectric Properties of Freestanding Ba1/3CoO2 Single Crystalline Films, ACS Appl. Electron. Mater. 5, 5749 (2023) [HU-PNU collaboration]
89. [KR Patent] H. Jeen, J. Lee, H. Kim, Y. Mun, TBA (2023)
87. J. Lee, H. J. Kim, E. Ahn, J. Lee, A. Seo, H. Jeen, Epitaxial reduction of MoO2 to Mo by high temperature hydrogen annealing, accepted for publication in New Physics (2023) [UKy-PNU collaboration]
86. S. Singh, J. Olamit, M. Fitzsimmons, J. Thompson, H. Jee, A. Biswas, Magnetic anisotropy and magnetization reversal in phase-separated (La0.5Pr0.5)0.625Ca0.375MnO3 thin films, Phys. Rev. B 107, 024420 (2023)
2022
85. Y. Heo, Y. Seo, T. Hong, J. S. Lee, J. K. Park*, J. Hwang* and H. Jeen*, Formation of optically-active disordered layers in (001) MgO single crystals accepted for publication in Curr. Appl. Phys. (2022)
84. B. Chen, K. Kang, H. Jeen, Y. Zhang, J. Lin, B. Feng, Y. Ikuhara, S. Hoshino, K. Matsunaga, and H. Ohta, Orthorhombic distortion-induced anatase-like optoelectronic properties of rutile TiO2 accepted for publication in J. Appl. Phys. (2022)
83. Q. Zhang, G. Hu, V. Starchenko, G. Wan, E. Dufresne, Y. Dong, H. Liu, H. Zhou, H. Jeen, K. Saritas, J. Krogel, F. Reboredo, H. N. Lee, A. Sandy, I. Calvo Almazan, P. Ganesh, and D. Fong, Phase transition dynamics in a complex oxide heterostructure accepted for publication in Phys. Rev. Lett. (2022)
80. K. Kang, J. Byun, M. Jeen, G. Jo, Y. Baek, J. Lee, H. Jeen*, Effect of sintering time on electronic properties of strontium hexaferrite accepted for publication in Ceramics International (2022)
2021
79. Y. Kwak, K. Oh, Y. Ko, S. Park, S. Ryu, M. Lee, H. Jeen & J. Jung*, Magnetoresistance of epitaxial SrRuO3 thin films on a flexible CoFe2O4-buffered mica substrate accepted for publication
78. J. Lee, Y. Kim, J. Cho, H. Ohta*, & H. Jeen*, Overlayer deposition-induced control of oxide ion concentration in SrFe0.5Co0.5O2.5 oxygen sponges, RSC Adv. (2021) [Full support from PNU-RENovation(2020-2021)]
77. K. Oh, Y. Kwak, D. Kong, S. Ryu, H. Kim, H. Jeen, S. Choi, and J. H. Jung, Mechanical stability of ferrimagnetic CoFe2O4 flexible thin films, Curr. Appl. Phys. (2021)
76. J. Lee, S. Ryu, I. Kim, M. Byeon, M. Jeong, J. S. Lee, T. Hong, J. Cho, J. Lee*, J. K. Park*, and H. Jeen*, Large enhancement of magnetic moment in nitridated CeFe12, 886, 161245 J. Alloy. Compd (2021)
75. Q. Yang, J. Lee, H. Jeen, H. Cho, and H. Ohta, Solid-State Electrochemical Protonation of SrCoO2.5 into HxSrCoO2.5 (x = 1, 1.5, and 2) online published in ACS Appl. Electron. Mater.(2021) [Partial support from PNU-RENovation(2020-2021)]
74. Q. Yang, H. Cho, H. Jeen, H. Ohta, Solid-state electrochemical redox control of the optoelectronic properties for SrFeOx thin films, 129, 215303 J. Appl. Phys. (2021)
73. [KR Patent] H. Jeen & G. S. Jeen, Cutting Apparatus with linear motion and rotational motion by using processing of rotation and vibration motion, Application number: 10-2021-0047564 (2021) -> Patent number: KR-10-24820410000
72. H. Kong, G. Kim, J. Lee, J. Cho, and H. Jeen*, Effect of thermal annealing on nitrogen implanted epitaxial Fe films, 24, 7-11 Curr. Appl. Phys. (2021)
71. G. Kim, B. Feng, S. Ryu, H. J. Cho, H. Jeen, Y. Ikuhara, H. Ohta, Anisotropic electrical conductivity of oxygen-deficient tungsten oxide films with epitaxially stabilized 1D atomic defect tunnels, 13, 6864 ACS Applied Materials & Interfaces (2021)
70. Y. Heo, D. Annas, K. H. Park, and H. Jeen*, Redox-driven control of magnetism and structure of polycrystalline PrBaCo2O5+delta, 8, 015502 Mater. Res. Express (2021)
2020
69. D. Cho, S. Ryu, and H. Jeen*, Effect of growth temperature on magnetism on GdFe12 epitaxial thin films accepted for publication in Journal of the Korea Magnetics Society (2020)
68. J. Lee, J. Park, J. W. Lee, Y. Heo, Y. S. Oh, J. S. Lee, J. Cho, and H. Jeen*, Formation of buried superconducting Mo2N, 10, 44339 (2020) RSC Adv.
67. H. J. Kim, Y. Seo, S. Hong, J. Hwang, H. Jeen*, Magnetic modulation by forming oxygen vacancies in epitaxial Ga0.5Fe1.5O3-x, 77, 1204 (2020) J. Kor. Phys. Sco.
66. H. B. Lee, G. C. Kim, H. Jeen, Y. C. Kim, Flux-Pinning effects and mechanism of water-quenched 5 wt.% (Fe, Ti) particle-doped MgB2 Superconductor, accpted for publication in J. Supercond. Nov. Magn.
65. J. H. Cho and H. Jeen, Model-dependent polar catastrophe scenario in ABO3 /SrTiO3 (001) (A = La, Y, Sc, B = Al, Ga) systems, accepted for publication in Journal of Applied Physics
64. Q. Yang, J. Lee, B. Feng, Y. Ikuhara, G. Kim, H. J. Cho, H. Jeen*, H. Ohta*, Unusually large thermopower change from +330 μV K−1 to −185 μV K−1 of brownmillerite SrCoO2.5, 2, 2250 (2020) ACS Appl. Electron. Mater.
63. C. W. Ahn, J. H. Jo, J. C. Kim, H. Ullah, S. Ryu, Y. Hwang, J. S. Choi, J. Lee, S. Lee, H. Jeen, Y. Shin, H. Y. Jeong, I. W. Kim, and T. H. Kim, "Highly ordered lead-free double perovskite halides by design", accepted to Journal of Materiomics (2020)
62. S. Choi, J. Kang, S. Ryu, H. Jeen, J. Son, S. Lee, High infrared transparency up to 8-um-wavelength in correlated vanadium Wadsley conductors, 8, 041111 (2020) APL Mater.
2019
61. Y. Ahn, G. Kim, J. Lee, H. Kim, J. Lee, H. Jeen, Effect of lithium doping on the transport properties of MoO3 ceramics, 69, 1016 (2019) New Physics: Sae Mulli
60. H. Kong, H. Kwon, H. Kim, G. Jeen, J. Lee, J. Lee, Y. Heo, J. Cho, and H. Jeen, Reductive-annealing-induced changes in Mo valence states on the surfaces of MoO3 single crystals and their high temperature transport, 19, 1379 (2019) Curr. Appl. Phys.
59. Q. Yang, H. Cho, H. Jeen, H. Ohta, Macroscopic Visualization of Fast Electrochemical Reaction of SrCoOx Oxygen Sponge, 1901260 (2019) Advanced Materials Interfaces [NRF-JSPS bilateral program]
58. D. Pajerowski, L. Krayer, H. Jeen, J. Borchers, A. Biswas, B. Ravel, Correlation of cation deficiency and nanostructure to decreased magnetism in a ferroelectric BiMnO3 film, 126, 085303 (2019) J. Appl. Phys.
57. J. Cho, M. Sheeraz, J. Bae, J. Lee, J. Lee, J. Lee, S. Lee, H. Jeen, Y. Oh, C. Ahn, and T. Kim, Effect of ceramic-target crystallinity on metal-to-insulator transition of epitaxial rare-earth nickelate films grown by pulsed laser deposition, 1, 1952 (2019) ACS Applied Electronic Materials
56. C. Folkman, S. Chang, H. Jeen, E. Perret, P. Baldo, C. Thompson, J. Eastman, H. N. Lee, D. Fong, In operando studies of CO oxidation on epitaxial SrCoO 2.5+ δ thin films, 7, 081126 (2019) APL Materials.
55. H. Cho, G. Kim, T. Onozato, H. Jeen, H. Ohta, Thermal conductivity tensor of NbO2, 137, 263 (2019) International Journal of Heat and Mass Transfer [NRF-JSPS bilateral program]
54. A. Sanchela, M. Wei, J. Lee, G. Kim, H. Jeen, B. Feng, Y. Ikuhara, H. Cho, H. Ohta, Buffer layer-less fabrication of a high-mobility transparent oxide semiconductor, La-doped BaSnO3, 7, 5797 (2019) J. Mater. Chem. C [NRF-JSPS bilateral program]
53. Y. Kim, S. Ryu, and H. Jeen, Strain-effected physical properties of ferromagnetic insulating La0.88Sr0.12MnO3 thin films, accepted for publication in RSC Adv.
2018
[NRF-JSPS bilateral program]
2017
045. S. G. Kim, K.-W. Jeon, J.-G. Lee, H. Kong, H. Jeen, S. -H. Kwon, and Y. -K. Baek, High purity alpha-Fe16N2 particles with tunable sphere structures via spray drying method, 22, 590 (2017)
044. G. Kim, H. Kong, D. Kim, H. Lee, H. Lee, M. Jeen, S. Mhin, H. Jeen*, Thermally-driven unequal cation vacancy formation and its effects on the dielectric properties in K0.5Na0.5NbO3 Ceramics, J. Kor. Phys. Soc. 71, 979 (2017)
043. J. H. Lee, W. S. Choi, H. Jeen, H. N. Lee, Strongly coupled magnetic and electronic transitions in multivalent strontium cobaltites, Sci. Rep. 7, 16066 (2017)
042. [KR patent] H. Jeen, H. Kong, G. S. Jeen, I. Lee, Improved Bridgman method to suppress sublimation, application number: 10-2017-0071740 (2017)
041. S. Ryu, J. Lee, E. Ahn, J. Kim, A. Herklotz, J. S. Bae, H. N. Lee, Y. H. Kim, J. Kim, T. Jeon, J. H. Cho, S. Park, and H. Jeen*, Growth of electronically distinct manganite thin films by modulating cation stoichiometry, Appl. Phys. Lett. 110, 261601 (2017)
040. J. Nichols, S. Yuk, C. Sohn, H. Jeen, J. W. Freeland, V. R. Cooper, and H. N. Lee, Electronic and magnetic properties of epitaxial SrRhO3 films, Phys. Rev. B 95, 245121 (2017)
039. E. Ahn and H. Jeen*, (Invited) 에피 박막을 통한 산화물연료전지 소재 연구, Ceramist (2017)
038. [US patent] H. N. Lee, H. Jeen, W. S. Choi, M. Biegalski, C. M. Folkman, I-C. Tung, D. D. Fong, J. W. Freeland, D. Shin, H. Ohta, M. F. Chisholm, Strontium cobaltite oxygen sponge catalyst and methods of use, Patent #: 9550166
037. E. Ahn, J. Lee, Y. Koh, J. Lee, B. G. Park, J. Y. Kim, I. Lee, C. W. Lee, H. Jeen*, Low temperature nanoscale oxygen-ion intercalation into epitaxial MoO2 thin films, J. Phys. Chem. C, 121, 3410 (2017)
036. J. Lee, E. Ahn, Y. Seo, Y. Kim, J. Y. Kim, J. Hwang, Y. Jang, J. Cho, J. H. Lee, H. Jeen*, Effect of oxygen intercalation into oxygen-deficient SrFe0.8Co0.2O3-delta thin films, Curr. Appl. Phys. 17, 717 (2017)
035. W. S. Choi, K. T. Kang, H. Jeen, Z. Gai, and H. N. Lee, Highly insulating ferromagnetic cobaltite heterostructures, Curr. Appl. Phys. 17, 722 (2017)
2016
034. H. Jeen, I. H. Kwak, A. Biswas, Surface morphology driven non-uniform magnetism in epitaxial BiMnO3, Mater. Res. Express 3 , 086101 (2016)
033. S. Singh, J. W. Freeland, M. R. Fitzsimmons, H. Jeen, A. Biswas, Composition dependence of charge and magnetic length scales in mixed valence manganite thin films, Sci. Rep. 6 6 , 29632 (2016)
032. E. Ahn, Y. Seo, J. Cho, I. Lee, J. Hwang, H. Jeen*, Epitaxial growth and metallicity of rutile MoO2 thin film, RSC Adv., 6, 60704 (2016)
031. H. Kong, E. Ahn, S. Ryu, J. W. Kim, J. H. Cho, S. Park, G. S. Jeen, I. Lee, H. Jeen*, Growth and physical properties of large MoO3 single crystals, J. Mater. Sci. 51 , 8928 (2016)
030. J. R. Petrie, H. Jeen, S. Barron, T. Meyer, H. N. Lee, Enhancing perovskite electrocatalysis through strain tuning of the oxygen deficiency , J . Am. Chem. Soc., 138 , 7252 (2016)
029. P. R. Mickel, H. Jeen, P. Kumar , A. Biswas, A. F. Hebard, Proximate transition temperatures amplify linear magnetoelectric coupling in strain-disordered multiferroic BiMnO3, Phys. Rev. B 93 , 134205 (2016) [arxiv version]
028. W. T. Hong, K. A. Stoerzinger, E. J. Crumlin, E. Mutoro, H. Jeen, H. N. Lee, Y. Shao-Horn, Near-ambient pressure XPS of high-temperature surface chemistry in Sr2Co2O5 thin films, Top. Catal. 59 , 574 (2016)
027. J. Petrie, C. Mitra, H. Jeen, W. S. Choi, T. Meyer, F. A. Reboredo, J. W. Freeland, G. Eres and H. N. Lee, Strain control of oxygen vacancies in epitaxial strontium cobaltite films, Adv. Funct. Mater. 26 , 1564 (2016)
026. T. Lim, S. D. Kim, K. Sung, Y. Rhyim, H. Jeen, J. Yun, K. Kim, K. Song, S. Lee, S. Chung, S. Choi, M. Choi, Insights into cationic ordering in Re-based double perovskite oxides, Sc. Rep. 6 , 19746 (2016)
025. H. Jeen, R. Javed, and A. Biswas, Growth of atomically flat thin films of the electronically phase separated manganite (La0.5Pr0.5)0.67Ca0.33MnO3, Appl. Phys. A 122 , 1-6 (2016) [arxiv version]
024. T. Meyer, H. Jeen, X. Gao, J. Petrie, M. F. Chisholm, and H. N. Lee, Symmetry-driven atomic rearrangement at a brownmillerite-perovskite interface, Adv. Electr. Mater. 2 , 1500201(2016) [arxiv version]
2015
023. H. Jeen and H. N. Lee, Structural evolution of epitaxial SrCoOx films near topotactic phase transition, AIP Adv. 5 , 127123 (2016)
022. L. Poudel, C. de la Cruz, E. A. Payzant, A. F. May, M. Koehler, V. O. Garlea, A. E. Talyor, D. S. Parker, H. B. Cao, M. A. McGuire, W. Tian, M. Matsuda, H. Jeen, H. N. Lee, T. Hong, S. Calder, H. D. Zhou, M. D.
Lumsden, V. Keppens, D. Mandrus, and A. D. Christianson, Structural and magnetic phase transition in CeCu 6-x T x T x (T = Ag, Pd), Phys. Rev. B 92 , 214421 (2015) [arxiv version]
021. A. Glamazda, K. -Y. Choi, P. Lemmens, W. S. Choi, H. Jeen, T. Meyer, and H. N. Lee, A Raman scattering study of SrCoO3-delta thin films, J. Appl. Phys.
020. K. A. Stoerzinger, W. S. Choi, H. Jeen, H. N. Lee, and Y. Shao-Horn, The role of strain and conductivity in oxygen electrocatalysis on LaCoO 3 thin films, J. Phys. Chem. Lett. 6 , 487 (2015)
2014
019. P. R. Mickel, H. Jeen, A. Biswas, and A. F. Hebard, Orientational strain modulation of ferroelectric polarization in multiferroic BiMnO 3 , Appl. Phys. Lett. 105 , 262904 (2014)
018. S. Singh, J. W. Freeland, M. R. Fitzsimmons, H. Jeen, and A. Biswas, Electronic and magnetic properties of manganite thin films with different compositions and its correlation with transport properties: an x-ray resonant magnetic scattering study, J. Appl. Phys. 116 , 222205 (2014)
017. S. Singh, M. R. Fitzsimmons, T. Lookman, H. Jeen, A. Biswas, Elastically controlled manipulation of the magnetic order parameter and the metal-insulator transition in a manganite thin film, Phys. Rev. B, 90 , 060407(R) (2014)
016. S. Singh, M. R. Fitzsimmons, H. Jeen, A. Biswas, Influence of the magnitude and direction of applied elastic stress on the transport properties of (La 0.4 Pr 0.6 ) 0.67 0.67 Ca 0.33 MnO 3 thin films, Appl. Phys. Lett. 104 , 201602 (2014)
2011 ~ 2013
015. H. Jeen, Z. Bi, W. S. Choi, M. F. Chisholm, C. A. Bridges, M. P. Paranthaman, and H. N. Lee, Orienting oxygen vacancies for fast catalytic reactions, Adv. Mater. 25 , 6459 (2013)
[ORNL research highlights] Orienting oxygen defects for enhanced oxygen reduction kinetics
014. W. S. Choi*, H. Jeen* , J. H. Lee, S. S. A. Seo, V. R. Cooper, K. M. Rabe, and H. N. Lee, Reversal of the lattice structure of SrCoO x epitaxial thin films studied by real-time optical spectroscopy and first-principles calculations, Phys. Rev. Lett. 111 , 097401 (2013) (*: equal contribution)
013. H. Jeen, W. S. Choi, M. D. Biegalski, C. M. Folkman, I. C. Tung, D. D. Fong, J. W. Freeland, D. Shin, H. Ohta, M. F. Chisholm, and H. N. Lee, Reversible redox reactions in an epitaxially stabilized SrCoO x oxygen sponge, Nature Mater. 12 , 1057 (2013)
[ORNL research highlights] Epitaxial oxygen sponges as low temperatur catalysts
[ANL science highlights] A 'sponge' path to better catalysts and energy materials
012. H. Jeen, W. S. Choi, J. W.
Freeland, H. Ohta, C. U. Jung, and H. N. Lee, Topotactic phase transformation of the brownmillerite SrCoO 2.5 to the perovskite SrCoO 3-delta , Adv. Mater. 25 , 3651 (2013)
[ORNL research highlights] Topotactic valence state control in epitaxial multivalent oxides
011. H. Jeen and A. Biswas, Electric field driven dynamic percolation in electronically phase separated (La 0.4 Pr 0.6 ) 0.67 Ca 0.33 MnO 3 thin films, Phys. Rev. B 88 , 024415 (2013)
010. L. Jiang, W. S. Choi, H. Jeen, S. Dong, Y. Kim, M. G. Han, Y. Zhu, S. V. Kalinin, E. Dagotto, T. Egami, and H. N. Lee, Tunneling electroresistsance induced by interfacial phase transitions in ultrathin oxide heterostructures, Nano Lett. 13 , 5837 (2013)
[ORNL research highlights] Enhancing tunneling electroresistance by interfacial phase transitions
009. P. R. Mickel, S. Buevau, A. Kamalov, H. Jeen, P. Finnegan, A. Biswas, A. F. Hebard, and C. D. James, Measurement of polarization vector in BiMnO 3 multiferroic thin films using surface and embedded microelectrodes, J. Appl. Phys. 114 , 094104 (2013)
008. P. A. Quintero, M. F. Dumont, D. M. Grant, E. S. Knowles, H. Jeen, A. Biswas, D. R. Talham, and M. W. Meisel, Films of photomagnetic CoFe Prussian blue analogue on thin manganite substrates: fabrication and characterization, Polyhedron, 66 , 201 (2013)
007. W. S. Choi, J. –H. Kwon, H. Jeen, J. E. hamann-Barrero, A. Radi, S. Macke, R. Sutarto, F. He, G. A. Sawatzky, V. Hinkov, M. Kim, and H. N. Lee, Strain-induced spin-states in atomically-ordered cobaltites, Nano Lett. 12 , 4966 (2012)
006. L. Jiang, W. S. Choi, H. Jeen, Y. Kim, T. Egami, and H. N. Lee, Strongly coupled phase transition in ferroelectric/correlated electron oxide heterostructures, Appl. Phys. Lett. 101 , 042902 (2012)
005. S. Singh, M. R. Fitzsimmons, H. Jeen, A. Biswas, and M. E. Hawley, Temperature dependence of nanometer-size metallic phase texture and its correlation with bulk magnetic and transport properties and defects of a (La 0.4 Pr 0.6)0.67Ca0.33MnO3 film, Appl. Phys. Lett. 101 , 022404 (2012)
004. S. Singh, M. R. Fitzsimmons, T. Lookman, H. Jeen, A. Biswas, M. A. Roldan, and M. Varela, Role of exclusive application of bending stress on magnetism of a manganite thin film studied by polarized neutron reflectometry, Phys. Rev. B 85 , 214440 (2012)
003. S. Singh, M. R. Fitzsimmons, T. Lookman, J. D. Thompson, H. Jeen, A. Biswas, M. A. Roldan, and M. Valera, Magnetic nonuniformity and thermal hysteresis of magnetism in a manganite thin film, Phys. Rev. Lett. 108 , 077207 (2012)
002. H. Jeen, G. Singh-Bhalla, P. R. Mickel, K. Voigt, C. Morien, S. Tongay, A. F. Hebard, and A. Biswas, Growth and characterization of multiferroic BiMnO 3 thin films, J. Appl. Phys. 109 , 074104 (2011)
001. H. Jeen and A. Biswas, Single domain to multi-domain transition due to in-plane magnetic anisotropy in phase separated (La0.4Pr0.6)0.67Ca0.33MnO3 thin films, Phys. Rev. B 83 , 064408 (2011)