Papers - Im Hojun
-
Pressure-dependent electronic structure of the A-site ordered perovskite CaCu3Ti4O12 via x-ray Raman scattering
Yasuhisa Tezuka, Hojun Im, Takao Watanabe, Hirofumi Ishii, Nozomu Hiraoka, Yoichi Ishiwata, and Hitoshi Yamaoka
Physical Review B 109 ( 3 ) 035132 2024.1
-
Capacitance characterization of graphene/n-Si Schottky junction solar cell with MOS capacitor
Masahiro Teraoka, Yuzuki Ono and Hojun Im
Materials Research Express 10 ( 8 ) 085602 2023.8
-
Variation of Strong Correlation Effects in A-site Ordered Perovskites CaCu3Ti4−xRuxO12: Photoemission and Inverse Photoemission Studies
Hojun Im, Masataka Iwataki, Masanori Tsunekawa, Takao Watanabe, Hitoshi Sato, Masashi Nakatake, and Shin-ichi Kimura
Journal of the Physical Society of Japan ( 92 ) 044701 2023.4
-
Thermal annealing effects on graphene/n-Si Schottky junction solar cell: removal of PMMA residues
Yuzuki Ono and Hojun Im
Japanese Journal of Applied Physics 62 ( 4 ) 045002 2023.4
-
Polarization Dependent Ti 2p Resonant X-Ray Raman Scattering Study of CaCu3Ti4O12
R. Kato, H. Im, T. Watanabe, N. Nakajima, Y. Tezuka
Photon Factory Activity Report 2020 38 178 - 178 2021.7
-
Temperature Dependent Local Structure of A-Site Ordered Perovskite CaCu3Ti4O12 Measured by X-Ray Fluorescence Holography
M. Asari, H.J. Im, T. Watanabe, N. Happo, K. Kimura, K. Hayasi, S. Hosokawa, Y. Tezuka
Photon Factory Activity Report 2020 38 177 - 177 2021.7
-
Temperature dependence of the electronic structure of A-site ordered perovskite CaCu3Ti4O12: Angle-integrated and -resolved photoemission studies
H. J. Im, T. Sakurada, M. Tsunekawa, T. Watanabe, H. Miyazaki, S. Kimura
Solid State Communications 298 113648 2019.8
-
Local Structure Study of A-site Ordered Perovskite CaCu3Ti4O12 by means of X-ray Fluorescence Holography
H. Kamide, H.J. Im, T. Watanabe, N. Happo, K. Kimura, K. Hayashi, S. Hosokawa, Y. Tezuka
Photon Factory Activity Report 2018 36 2019.7
-
Growth and Raman spectroscopy of thickness-controlled rotationally faulted multilayer graphene
H. Kato, N. Itagaki, H. J. Im
Carbon 141 76 - 82 2019.1
-
Temperature Dependent O K Resonant X-ray Emission Spectra of CaCu3Ti4O12
Y. Tezuka, H. Kamide, H.J. Im, T. Watanabe, N. Nakajima
Photon Factory Activity Report 2017 35 283 2018.7
-
Electronic structure study of CaCu3Ti4O12 by means of X-ray Raman scattering
Y. Tezukaa, Y. Yokouchi, S. Sasaki, S. Nakamoto, K. Nishiyama, M. Mikami, H.J. Im,T. Watanabe, S. Nozawa, N. Nakajima, T. Iwazumi
Journal of Electron Spectroscopy and Related Phenomena 220 114 - 117 2017.10
-
Temperature Dependent Electronic Structure Study of CaCu3Ti4O12 by Means of X-Ray Raman Scattering
K. Nishiyama, S. Nakamoto, H. Im, T. Watanabe, S. Nozawa, N. Nakajima, T. Iwazumi, Y. Tezuka
Photon Factory Activity Report 2016 #34-B 286 2017.7
-
Electronic Structure Study of CaCu3Ti4O12 by means of Soft X-ray Raman Scattering
S. Nakamoto, K Nishiyama, H. Im, T. Watanabe, N. Nakajima, and Y. Tezuka
Photon Factory Activity Report 2015 #33-B 378 2016.7
-
Electronic Structure Study of CaCu3Ti4O12 by means of X-ray Raman Scattering
Y. Yokouchi, M. Mikami, H. Im, T. Watanabe, S. Nozawa, N. Nakajima, T. Iwazumi, Y. Tezuka
Photon Factory Activity Report 2014 #32-B 195 2015.12
-
Electronic structure of Mott-insulator CaCu3Ti4O12: Photoemission and inverse photoemission study
H. J. Im, M. Iwataki, S. Yamazaki, T. Usui, S. Adachi, M. Tsunekawa, T. Watanabe, K. Takegahara, S. Kimura, M. Matsunami, H. Sato, H. Namatame, M. Taniguchi
Solid State Communications 217 17 - 20 2015.9
-
Fermi Surface Variation of Ce 4f-electrons in Hybridization Controlled Heavy-Fermion Systems
H. J. Im, T. Ito, H. Miyazaki, S. Kimura, Y. S. Kwon, Y. Saitoh, S.-I. Fujimori, A. Yasui, H. Yamagami
Solid State Communications 209-210 45 - 48 2015.5
-
Electronic Structure Study of CaCu3Ti4O12 by means of X-ray Raman Scattering
Y. Tezuka, M. Mikami, Y. Yokouchi, H. Im, T. Watanabe, S. Nozawa, N. Nakajima, T. Iwazumi
Photon Factory Activity Report 2013 #31-B 323 2014.12
-
Photoemission study of CaCu3Ru4O12
H. J. Im, M. Iwataki, M. Tsunekawa, T. Watanabe, M. Matsunami, S. Kimura
UVSOR Activity Report 41 136 - 136 2014.7
-
Strong correlation effects in the A-site ordered perovskite CaCu3Ti4O12 revealed by angle-resolved photoemission spectroscopy
H. J. Im, M. Tsunekawa, T. Sakurada, M. Iwataki, K. Kawata, T. Watanabe, K. Takegahara, H. Miyazaki, M. Matsunami, T. Hajiri, S. Kimura
Physical Review B 88 205133-1 - 205133-5 2013.11
-
Angle-resolved photoemission study of CaCu3Ti4O12
H. J. Im, M. Tsunekawa, T. Sakurada, M. Iwataki, K. Kawata, T. Watanabe, K. Takegahara, H. Miyazaki, M. Matsunami, T. Hajiri, and S. Kimura
UVSOR Activity Report 40 100 2013.8
-
Temperature Dependent Photoemission Spectra of CaCu3Ti4O12
H. J. Im, T. Sakurada, M. Tsunekawa, K. Kawata, T. Watanabe, H. Miyazaki, S. Kimura
UVSOR activity report 2011 90 - 90 2012.6
-
A Photon Energy-Dependent Angle-Resolved Photoemission Study of CaCu3Ti4O12
H. J. Im, T. Sakurada, M. Tsunekawa, M. Toita, T. Watanabe, K, Takegahara, H. Miyazaki, S. Kimura
UVSOR activity report 2010 87 - 87 2011.6
-
La-doped EuO: A Rare Earth Ferromagnetic Semiconductor with the Highest Curie Temperature
H. Miyazaki, H. J. Im, K. Terashima, S. Yagi, M. Kato, K. Soda, T. Ito, S. Kimura
Applied Physics Letters 96 232503-1 - 232503-3 2010.6
-
Ce 4d-4f resonant angle resolved photoemission studies on quantum criticality in heavy-fermion Ce112 systems
H. J. Im, H. Miyazaki, T. Ito, S. Kimura, K. E. Lee, Y. S. Kwon
UVSOR activity report 2009 96 - 96 2010.6
-
Change of lattice constant due to the hybridization effect of a ferromagnetic semiconductor EuO
H. Miyazaki, T. Ito, H. J. Im, K. Terashima, T. Iizuka, S. Yagi, M. Kato, K. Soda, S. Kimura
Journal of Physics: Conference Series 200 012124-1 - 012124-4 2010.2
-
First-Principles Local-Density Approximation Study of Electronic Structure in CeCoSi2
A. Yasui, H. Yamagami, H. J. Im
The Journal of the Physical Society of Japan 78 104705-1 - 104705-4 2009.9
-
Direct Observation of Momentum-Dependent Exchange Interaction in a Heisenberg Ferromagnet
H. Miyazaki, T. Ito, H.J. Im, S. Yagi, M. Kato, K. Soda, S. Kimura
Physical Review Letters 102 227203-1 - 227203-4 2009.6
-
In Situ Magnetic Circular Dichroism Experiment on Ferromagnetic Semiconductor EuO Thin Films
H. Miyazaki, T. Ito, K. Terashima, H. J. Im, Y, Takagi, T. Nakagawa, Y. Yamamoto, S. Kimura, S. Yagi, M. Kato, K. Soda, T. Yokoyama
UVSOR Activity Report 2008 86 - 86 2009.6
-
Ce 4d-4f Resonant Photoemission Studies in Ce Dilute Kondo System
H. J. Im, M. Tsunekawa, H. Miyazaki, T. Ito, S. Kimura, K. E. Lee, J. B. Hong, Y. S. Kwon
UVSOR Activity Report 2008 87 - 87 2009.6
-
Temperature Depedent Angle-Resolved Photoemission Spectra of La-Doped EuO
H. Miyazaki, T. Ito, K. Terashima, H. J. Im, S. Yagi, M. Kato, K. Soda, S. Kimura
UVSOR Activity Report 2008 91 - 91 2009.6
-
Pressure-Dependent Far-Infrared Reflectivity Spectra of CeIn3 at 9K
T. Iizuka, T. Mizuno, C. I. Lee, K. E. Lee, H. J. Im, Y. S. Kwon, S. Kimura
UVSOR Activity Report 2008 94 - 94 2009.6
-
Crystalline electric field effects in Ce 3d core-level spectra of heavy-fermion systems: Hard x-ray photoemission spectroscopy on CeNi1-xCoxGe2
H.J. Im, T. Ito, S. Kimura, H.-D. Kim, J.B. Hong, Y.S. Kwon
Physical Review B 79 193105-1 - 193105-4 2009.5
-
Single Crystal Growth and Magnetic, Optical, and Photoelectrical Properties of EuO Thin Film
H. Miyazaki, T. Ito, H.J. Im, K. Terashima, S. Yagi, M. Kato, K. Soda, S. Kimura
The Japanese Journal of Applied Physics 48 055504-1 - 055504-4 2009.5
-
Optical properties of the charge-density-wave compound CeTe2
K.E. Lee, C.I. Lee, H.J. Oh, M.A. Jung, B.H. Min, H.J. Im, T. Izuka, Y.S. Lee, S. Kimura, Y.S. Kwon
Physical Review B 78 134408-1 - 134408-5 2008.10
-
Optical evidence for a change in the heavy electron Fermi surface at a magnetic quantum critical point of CeNi1-xCoxGe2
K.E. Lee, C.I. Lee, H.J. Oh, H.J. Im, Tuson Park, S. Kimura, Y.S. Kwon
Journal of Physics: Condensed Matter 20 285202-1 - 285202-5 2008.6
-
Momentum-Dependent Kondo Resonance Peaks in a Low-Energy Angle-Resolved Photoemission Spectroscopy
H.J. Im, T. Ito, H. Miyazaki, S. Kimura, C.I. Lee, K.E. Lee, Y.S. Kwon
UVSOR Activity Report 2007 124 - 124 2008.6
-
Ce and Gd 4d-4f Resonant Photoemission Studies of Ce1-xGdxCoSi3
H.J. Im, H. Miyazaki, T. Ito, S. Kimura, J.B. Hong, Y.S. Kwon
UVSOR Activity Report 2007 119 - 119 2008.6
-
Evidence of Three-Dimensional CDW Formation on CeTe2
T. Ito, H.J. Im, S. Kimura, Y.S. Kwon
UVSOR Activity Report 2007 125 - 125 2008.6
-
Temperature Dependent Angle-Resolved Photoemission Spectra on Ferromagnetic EuO Thin Films
H. Miyazaki, T. Ito, S. Ota, H.J. Im, S. Yagi, M. Kato, K. Soda, S. Kimura
UVSOR Activity Report 2007 121 - 121 2008.6
-
Infrared Spectroscopy of CeIn3 under a pressure
T. Iizuka, T. Mizuno, K. E. Lee, H. J. Im, Y. S. Kwon, S. Kimura
UVSOR Activity Report 2007 91 2008.6
-
Hybridization gap-open in CeIn3
C.I. Lee, K.E. Lee, Y.Y. Song, H.J. Im, S. Kimura, Y.S. Kwon
Infrared Physics & Technology 51 488 - 490 2008.5
-
Dramatic Change of Optical Properties at a Quantum Critical Point in the Heavy Fermion System CeNi1-xCoxGe2
Y.Y. Song, K.E. Lee, J.B. Hong, H.J. Im, S. Kimura, Y. S. Kwon
Infrared Physics & Technology 51 485 - 487 2008.5
-
Direct observation of dispersive Kondo resonance peaks in a heavy-fermion system
H.J. Im, T. Ito, H.-D. Kim, S. Kimura, K.E. Lee, J.B. Hong, Y.S. Kwon, A. Yasui, H. Yamagami
Physical Review Letters 100 176402-1 - 176402-4 2008.5
-
Geometrically frustrated magnetic system Ce5-xLaxNi2Si3
K.E. Lee, H.J. Im, M.H. Jung, Y.S. Kwon
Physica B 403 1450 - 1452 2008.4
-
Magnetic ordering in frustrated Pr5Ni2Si3
K.E. Lee, H.J. Im, M.H. Jung, Y.S. Kwon
Physica B 403 1423 - 1425 2008.4
-
Angle-resolved photoemission study on EuO thin films
H. Miyazaki, T. Ito, S, Ota, H.J. Im, S. Yagi, M. Kato, K. S. Kimura
Physica B 403 917 - 918 2008.4
-
Anomaly in Ce1-xGdxCoSi3
J.B. Hong, N.A. Lee, H.J. Im, M.H. Jung, Y.S. Kwon
Physica B 403 911 - 913 2008.4
-
Infrared study on the electronic structure of the alkaline-earth-filled skutterudites AM4Sb12 (A=Sr, Ba; M=Fe, Ru, Os)
S. Kimura, H.J. Im, T. Mizuno, S. Narazu, E. Matsuoka, T. Takabatake
Physical Review B 75 245106-1 - 245106-6 2007.6
-
Performance of the Three-dimensional VUV Angle-resolved Photoemission Apparatus at BL7U
T. Ito, S. Kimura, M. Sakai, N. Kondo, T. Horigome, H. Im, H. Miyazaki, K. Soda
UVSOR Activity Report 2006 52 - 52 2007.6
-
Angle-resolved Photoemission Study of CeCoGe1.2Si0.8 in the Three-dimensional Momentum space
H.J. Im, T. Ito, S. Kimura, J.B. Hong, Y.S. Kwon
UVSOR Activity Report 2006 94 - 94 2007.6
-
Three-Dimensional Angle-Resolved Photoemission Study on EuO thin films
H. Miyazaki, T. Ito, S. Ota, H. J. Im, S. Yagi, M. Kato, K. Soda, S. Kimura
UVSOR Activity Report 2006 111 - 111 2007.6
-
Construction of a VUV Angle-resolved Photoemission Beamline BL7U
S. Kimura, T. Ito, M. Sakai, E. Nakamura, N. Kondo, T. Horigome, M. Hosaka, A. Mochihashi, M. Katoh, T. Ejima, H.J. Im, H. Miyazaki, K. Soda
UVSOR Activity Report 2006 50 - 50 2007.6
-
Hybridization gap collapse at a quantum critical point of CeNi1-xCoxGe2
Y.S. Kwon, K.E. Lee, M.A. Jung, E.Y. Song, H.J. Oh, H.J. Im, S. Kimura
Journal of Magnetism Magnetic Materials 310 310 - 312 2007.3
-
Three-dimensional Fermi surface of CeTe2 studied by angle-resolved photoemission
T. Ito, H.J. Im, S Kimura, Y.S. Kwon
Journal of Magnetism Magnetic Materials 310 431 - 433 2007.3
-
Electronic structure of CeNiGe2-xSix studied by resonant photoemission
H.J. Im, T. Ito, H.D. Kim, S Kimura, J.B. Hong, Y.S. Kwon
Journal of Magnetism Magnetic Materials 310 411 - 413 2007.3
-
Magnetic-field-induced superconductor-insulator-metal transition in an organic conductor: An infrared magneto-optical imaging spectroscopic study
T. Nishi, S. Kimura, T. Takahashi, H.J. Im, Y.S. Kwon, T. Ito, K. Miyagawa, H. Taniguchi, A. Kawamoto, K. Kanoda
Physical Review B 75 014525-1 - 014525-5 2007.1
-
BL5U at UVSOR-II for three-dimensional angle-resolved photoemission spectroscopy
T. Ito, S. Kimura, H.J. Im, E. Nakamura, M. Sakai, T. Horigome, K. Soda, T. Takeuchi
AIP Conference Proceedings 879 587 - 590 2007.1
-
Infrared study on electronic structure of SrT4Sb12 (T = Fe, Ru)
S. Kimura, H.J. Im, Y. Sakurai, T. Mizuno, K. Takegahara, H. Harima, K. Hayashi, E. Matsuoka, T. Takabatake
Physica B 383 137 - 139 2006.8
-
Iron-Based Heavy Quasiparticles in SrFe4Sb12: An Infrared Spectroscopic Study
S. Kimura, T. Mizuno, H.J. Im, K. Hayashi, E. Matsuoka, T. Takabatake
Physical Review B 73 214416-1 - 214416-5 2006.6
-
Three-dimensional angle-resolved photoemission study on CeTe2
T. Ito, H.J. Im, S. Kimura, Y.S. Kwon
UVSOR activity report 2005 100 2006.6
-
Electronic structure of CeNiGe2-xSix: Ce 4d-4f resonant photoemission spectroscopy
H.J. Im, T. Ito, S Kimura, H.-D. Kim, J.B. Hong, Y.S. Kwon
UVSOR activity report 2005 98 - 98 2006.6
-
Optical pseudogap from iron states in AFe4Sb12 (A = Yb, Ca, Ba)
J. Sichelschmidt, H.J. Im, S. Kimura, V. Voevodin, H. Rosner, W. Schnelle, A. Leithe-Jasper, J.A. Mydosh, Yu. Grin, F. Steglich
UVSOR activity report 2005 63 - 63 2006.6
-
Three-dimensional angle-resolved photoemission study on SmS
T. Ito, H.J. Im, A. Chainani, K. Matsubayashi, S. Kimura, H.-D. Kim, K. Imura, H. Suzuki, N.K. Sato
UVSOR activity report 2005 99 - 99 2006.6
-
Angle-resolved photoemission study on CeTe2
T. Ito, H.J. Im, S. Kimura, Y.S. Kwon
Physica B 378-380 767 - 768 2006.5
-
High-resolution photoemission spectroscopy of CeNiGe2 and CeCoGe2
H.J. Im, T. Ito, S. Kimura, J.B. Hong, Y.S. Kwon
Physica B 378-380 825 - 826 2006.5
-
Infrared absorption in heavy Fermion system CeNi1-xCoxGe2
Y.S. Kwon, J.B. Hong, H.J. Im, T. Nishi, S. Kimura
Physica B 378-380 823 - 824 2006.5
-
Optical Pseudogap from Iron States in Filled Skutterudites AFe4Sb12 (A = Yb and Ca, Ba)
J. Sichelschmidt, V. Voevodin, H.J. Im, S. Kimura, H. Rosner, A. Leithe-Jasper, W. Schnelle, U. Burkhardt, J.A. Mydosh, Yu. Grin, F. Steglich
Physical Review Letters 96 037406-1 - 037406-4 2006.1
-
Continuity of Ce 4f electronic structure across the quantum critical point: A resonant photoemission study on CeNi1-xCoxGe2
H.J. Im, T. Ito, J.B. Hong, S. Kimura, Y.S. Kwon
Physical Review B 72 220405(R)-1 - 220405(R)-4 2005.12
-
Infrared spectroscopy under multiextreme conditions: Direct observation of pseudo gap formation and collapse in CeSb
T. Nishi, S. Kimura, T. Takahashi, Y. Mori, Y.S. Kwon, H.J. Im, H. Kitazawa
Physical Review B 71 220401(R)-1 - 220401(R)-4 2005.6
-
Three-Dimensional Band Dispersion of CeTe2
T. Ito, H.J. Im, S. Kimura, Y.S. Kwon
UVSOR activity report 2004 99 - 99 2005.6
-
Ce 4d-4f resonant photoemission spectroscopy on CeNi1-xCoxGe2
H.J. Im, T. Ito, B.K. Lee, S. Kimura, Y.S. Kwon
UVSOR activity report 2004 100 - 100 2005.6
-
Improvement of the SGM-TRAIN Monochromator at UVSOR-II BL5U for Low Excitation Energy Photoemission
T. Ito, H.J. Im, S. Kimura, E. Nakamura, T. Horigome
UVSOR activity report 2004 41 - 41 2005.6
-
The origin of the phase separation in partially deuterated κ-(ET)2Cu[N(CN)2]Br Studied by infrared magneto-microspectroscopy
T. Nishi, S. Kimura, T. Takahashi, T. Ito, H.J. Im, Y.S. Kwon, K. Miyagawa, H. Taniguchi, A. Kawamoto, K. Kanoda
Solid State Communications 134 189 - 193 2005.4
-
Infrared study on CeSb under high pressures
S. Kimura, T. Nishi, Y. Mori, Y. Sumida, T. Takahashi, Y.S. Kwon, H.J. Im, H. Kitazawa
Physica B 359-361 190 - 192 2005.4
-
Electrical and magnetic properties of the new Kondo-lattice compound Ce3Pd4Ge4
H.J. Im, Y.S. Kwon, M.H. Jung
Solid State Communications 124 181 - 183 2002.10
-
Magnetic and transport properties of the antiferromagnetic dense Kondo lattice system Ce2CuxNi1-xGe6
H.J. Im, B.H. Min, Y.S. Kwon, D.L. Kim, H.-C. Ri
Physica B 312-313 197 - 199 2002.3
-
Transport properties in low carrier system CeTe2
B.H. Min, E.D. Moon, H.J. Im, S.O. Hong, Y.S. Kwon, D.L. Kim, H.-C. Ri
Physica B 312-313 205 - 207 2002.3