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Tanaka, Seiya*; Kiyanagi, Ryoji; Ishikawa, Yoshihisa*; Amako, Yasushi*; Iiyama, Taku*; Futamura, Ryusuke*; Maruyama, Kenichi*; Utsumi, Shigenori*
Physical Review Materials (Internet), 7(1), p.014403_1 - 014403_11, 2023/01
Times Cited Count:0 Percentile:0.00(Materials Science, Multidisciplinary)Maruyama, Kenichi*; Tanaka, Seiya*; Kiyanagi, Ryoji; Nakao, Akiko*; Moriyama, Kentaro*; Ishikawa, Yoshihisa*; Amako, Yasushi*; Iiyama, Taku*; Futamura, Ryusuke*; Utsumi, Shigenori*; et al.
Journal of Alloys and Compounds, 892, p.162125_1 - 162125_8, 2022/02
Times Cited Count:2 Percentile:11.94(Chemistry, Physical)Utsumi, Shigenori*; Tanaka, Seiya*; Maruyama, Kenichi*; Amako, Yasushi*; Kiyanagi, Ryoji; Nakao, Akiko*; Moriyama, Kentaro*; Ishikawa, Yoshihisa*; 9 of others*
ACS Omega (Internet), 5(38), p.24890 - 24897, 2020/09
Times Cited Count:5 Percentile:21.95(Chemistry, Multidisciplinary)Fabricating large, high-crystalline-quality single-crystal samples of hexagonal ferrite Ba(FeSc
)
O
is the first important step to elucidating its helimagnetic structure and developing it for further applications. In this study, single crystals of Ba(Fe
Sc
)
O
of various Sc concentrations
were successfully grown by the spontaneous crystallization method using Na
O-Fe
O
flux. X-ray diffraction and elemental analysis revealed that the obtained crystals were composed of single-phase Ba(Fe
Sc
)
O
of high crystalline quality. The temperature dependence of magnetization and the magnetization curves at 77 K of the
= 0.128 crystal exhibited behavior characteristics of helimagnetism. Neutron diffraction measurements of the
= 0.128 crystal exhibited magnetic satellite reflection peaks below 211K, proving evidence that Ba(Fe
Sc
)
O
behaves as a helimagnetic material.
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:13 Percentile:45.83(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.