Carbon nanomaterials: Graphene
Strongly correlated materials: Mott insulators
- Pressure-dependent electronic structure of A-site ordered perovskite CaCu3Ti4O12 via X-ray Raman scattering
Y. Tezuka, H. J. Im, T. Watanabe, H. Ishii, N. Hiraoka, Y. Ishiwata, and H. Yamaoka
Phys. Rev. B 109, 035132 (2024).
- Variation of Strong Correlation Effects in A-site Ordered Perovskites CaCu3Ti4-xRuxO12: Photoemission and Inverse Photoemission Studies
H. J. Im, M. Iwataki, M. Tsunekawa, T. Watanabe, H. Sato, M. Nakatake, and S. Kimura
J. Phys. Soc. Jpn. 92, 044701 (2023).
- 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 Commun. 298, 113648 (2019).
- 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 Commun. 217, 17 (2015).
- 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
Phys. Rev. B 88, 205133 (2013).
Strongly correlated materials: Heavy fermions
- 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 Commun. 209-210, 45 (2015).
- 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
Appl. Phys. Lett. 96, 232503 (2010).
- 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
Phys. Rev. B 79, 193105 (2009).
- 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
Phys. Rev. Lett. 102, 227203 (2009).
- 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
Phys. Rev. Lett. 100, 176402 (2008).
- 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
Phys. Rev. Lett. 96, 037406 (2006)
- 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
Phys. Rev. B 72, 220405(R) (2005).
- 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 and H.-C. Ri
Phys. B: Condens. Matter 312-313, 197 (2002).
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