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Ito, Keita*; Yasutomi, Yoko*; Zhu, S.*; Nurmamat, M.*; Tahara, Masaki*; Toko, Kaoru*; Akiyama, Ryota*; Takeda, Yukiharu; Saito, Yuji; Oguchi, Tamio*; et al.
Physical Review B, 101(10), p.104401_1 - 104401_8, 2020/03
Times Cited Count:1 Percentile:31.73(Materials Science, Multidisciplinary)Nagai, Kodai*; Fujiwara, Hidenori*; Aratani, Hidekazu*; Fujioka, Shuhei*; Yomosa, Hiroshi*; Nakatani, Yasuhiro*; Kiss, Takayuki*; Sekiyama, Akira*; Kuroda, Fumiaki*; Fujii, Hitoshi*; et al.
Physical Review B, 97(3), p.035143_1 - 035143_8, 2018/01
Times Cited Count:5 Percentile:47.75(Materials Science, Multidisciplinary)We have studied the electronic structure of ferrimagnetic MnVAl single crystals by means of soft X-ray absorption spectroscopy (XAS), X-ray absorption magnetic circular dichroism (XMCD), and resonant soft X-ray inelastic scattering (RIXS). We have successfully observed the XMCD signals for all the constituent elements. The Mn L
XAS and XMCD spectra are reproduced by spectral simulations based on density-functional theory, indicating the itinerant character of the Mn 3
states. On the other hand, the V 3
electrons are rather localized since the ionic model can qualitatively explain the V L
XAS and XMCD spectra. This picture is consistent with local
excitations revealed by the V L
RIXS.
Ito, Keita*; Toko, Kaoru*; Takeda, Yukiharu; Saito, Yuji; Oguchi, Tamio*; Suemasu, Takashi*; Kimura, Akio*
Journal of Applied Physics, 117(19), p.193906_1 - 193906_6, 2015/05
Times Cited Count:9 Percentile:50.26(Physics, Applied)Utsumi, Yuki*; Sato, Hitoshi*; Kurihara, Hidenao*; Maso, Hiroyuki*; Hiraoka, Koichi*; Kojima, Kenichi*; Tobimatsu, Komei*; Okochi, Takuo*; Fujimori, Shinichi; Takeda, Yukiharu; et al.
Physical Review B, 84(11), p.115143_1 - 115143_7, 2011/09
Times Cited Count:6 Percentile:66.87(Materials Science, Multidisciplinary)We have studied conduction-band (CB) electronic states of a typical valence-transition compound YbInCu by means of temperature-dependent hard X-ray photoemission spectroscopy (HX-PES), soft X-ray absorption spectroscopy (XAS), and soft X-ray photoemission spectroscopy (SX-PES) of the valence band. We have described the valence transition in YbInCu
in terms of the charge transfer from the CB to Yb 4
states.
Ishimatsu, Naoki*; Sasada, Ryohei*; Maruyama, Hiroshi*; Ichikawa, Takayuki*; Miyaoka, Hiroki*; Kimura, Toru*; Tsubota, Masami*; Kojima, Yoshitsugu*; Tsumuraya, Takao*; Oguchi, Tamio*; et al.
Journal of Physics; Conference Series, 190, p.012070_1 - 012070_4, 2009/11
Times Cited Count:2 Percentile:39.27We have investigated the effect of hydrogenation on La and
electronic states in metallic LaH
by X-ray absorption near edge structure at the La
-edges. As the hydrogen content
increases from 0 to 2.6, white-line intensity at the La
-edges shows a remarkable increase in the range of
2.0. This is interpreted as the increase in La
hole induced by interstitial H atoms on the octahedral sites. On the other hand, the shoulder structure at the La
-edge disappears in the process of
= 0.0
2.0, indicating that the
-
hybridization is weakened by H atoms on the tetrahedral sites. This study demonstrates that H atoms on the two interstitial H sites provide different contribution to the modification of the electronic states.
Iwasaki, T.*; Sekiyama, Akira*; Yamasaki, Atsushi*; Okazaki, Makoto*; Kadono, Koji*; Utsunomiya, Hiroshi*; Imada, Shin*; Saito, Yuji; Muro, Takayuki*; Matsushita, Tomohiro*; et al.
Physical Review B, 65(19), p.195109_1 - 195109_9, 2002/05
Times Cited Count:23 Percentile:27.45(Materials Science, Multidisciplinary)no abstracts in English
Watabe, Hiroshi*; Oguchi, Tamio*
Nippon Keisan Kogakkai Rombunshu, 2(1), p.63 - 65, 1997/05
no abstracts in English
*; Oguchi, Tamio*
JAERI-Data/Code 97-009, 30 Pages, 1997/03
no abstracts in English