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Your search keyword '"Tsunekawa, Masanori"' showing total 6 results
Start Over Author "Tsunekawa, Masanori" Publisher physical society of japan
6 results on '"Tsunekawa, Masanori"'

2. Variation of Strong Correlation Effects in A-site Ordered Perovskites CaCu3Ti4−xRuxO12: Photoemission and Inverse Photoemission Studies.

Author

Im, Hojun, Iwataki, Masataka, Tsunekawa, Masanori, Watanabe, Takao, Sato, Hitoshi, Nakatake, Masashi, and Kimura, Shin-ichi

Abstract

We have systematically studied the strong correlation effects in A-site ordered perovskites CaCu3Ti4−xRuxO12 (x = 0, 1, 3.5, and 4) by using photoemission and inverse photoemission spectroscopies. In x = 0, 1, 3.5, the peak positions of the strongly correlated Cu 3d states around −3.8 eV and Ti 3d states around 3.6 eV little change. On the other hand, in x = 4, the Cu 3d states split into two peaks around −2.5 and −4 eV. These indicate that Ti plays an important role to retain the strong correlation effects. In addition, the multiplet structures of Cu 3d final states from −8 to −14 eV become weak as Ru increases, indicating the reduction of the localized characters of Cu 3d states. At the Fermi level, we observe the absence of spectral weight in x = 0, 1 and the development of Ru 4d in-gap states in x = 3.5, 4, which give rise to the metal–insulator transition between x = 1 and 3.5. [ABSTRACT FROM AUTHOR]

Published
2023
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3. Kondo Lattice Effects of YbAl3Suggested by Temperature Dependence of High-Accuracy High-Energy Photoelectron Spectroscopy

Author

Suga, Shigemasa, primary, Sekiyama, Akira, additional, Imada, Shin, additional, Shigemoto, Akihiko, additional, Yamasaki, Atsushi, additional, Tsunekawa, Masanori, additional, Dallera, Claudia, additional, Braicovich, Lucio, additional, Lee, Tien-Lin, additional, Sakai, Osamu, additional, Ebihara, Takao, additional, and Ōnuki, Yoshichika, additional

Published
2005
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6. Temperature-Dependent Change of Correlated Electronic States in Yb4As3and Yb4(As1-xSbx)3Probed by High Resolution Photoemission Spectroscopy

Author

Suga, Shigemasa, primary, Ochiai, Akira, additional, Suzuki, Takashi, additional, Harada, Hideyuki, additional, Sekiyama, Akira, additional, Matsushita, Tomohiro, additional, Iwasaki, Takeshi, additional, Kimura, Akio, additional, Tsunekawa, Masanori, additional, Muro, Takayuki, additional, Ueda, Shigenori, additional, Daimon, Hiroshi, additional, Imada, Shin, additional, Namatame, Hirofumi, additional, Taniguchi, Masaki, additional, Ishii, Hiroyoshi, additional, Miyahara, Tsuneaki, additional, Hanyu, Takaaki, additional, and Fujimori, Atsushi, additional

Published
1998
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