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Journal Articles

X-ray magnetic circular dichroism study of iron-intercalated transition-metal dichalcogenide Fe$$_x$$TaS$$_2$$ with perpendicular magnetic anisotropy; Comparison with Fe$$_x$$TiS$$_2$$

Shibata, Goro; Won, C.*; Kim, J.*; Nonaka, Yosuke*; Ikeda, Keisuke*; Wan, Y.*; Suzuki, Masahiro*; Koide, Tsuneharu*; Tanaka, Arata*; Cheong, S.-W.*; et al.

Photon Factory Activity Report 2022 (Internet), 2 Pages, 2023/00

no abstracts in English

Journal Articles

Cr doping-induced ferromagnetism in the spin-glass Cd$$_{1-x}$$Mn$$_x$$Te studied by X-ray magnetic circular dichroism

Verma, V.*; Sakamoto, Shoya*; Ishikawa, Koichiro*; Singh, V. R.*; Ishigami, Keisuke*; Shibata, Goro; Kadono, Toshiharu*; Koide, Tsuneharu*; Kuroda, Shinji*; Fujimori, Atsushi*

Physica B; Condensed Matter, 642, p.414129_1 - 414129_5, 2022/10

 Times Cited Count:3 Percentile:56.14(Physics, Condensed Matter)

Journal Articles

Magnetization process of the $$n$$-type ferromagnetic semiconductor (In,Fe)As:Be studied by X-ray magnetic circular dichroism

Sakamoto, Shoya*; Anh, L. D.*; Hai, P. N.*; Shibata, Goro*; Takeda, Yukiharu; Kobayashi, Masaki*; Takahashi, Yukio*; Koide, Tsuneharu*; Tanaka, Masaaki*; Fujimori, Atsushi*

Physical Review B, 93(3), p.035203_1 - 035203_6, 2016/01

AA2016-0502.pdf:1.1MB

 Times Cited Count:17 Percentile:63.25(Materials Science, Multidisciplinary)

Journal Articles

Thickness-dependent magnetic properties and strain-induced orbital magnetic moment in SrRuO$$_{3}$$ thin films

Ishigami, Keisuke*; Yoshimatsu, Kohei*; Toyota, Daisuke*; Takizawa, Masaru*; Yoshida, Teppei*; Shibata, Goro*; Harano, Takayuki*; Takahashi, Yukio*; Kadono, Toshiharu*; Verma, V. K.*; et al.

Physical Review B, 92(6), p.064402_1 - 064402_5, 2015/08

 Times Cited Count:42 Percentile:83.69(Materials Science, Multidisciplinary)

Journal Articles

Thickness-dependent ferromagnetic metal to paramagnetic insulator transition in La$$_{0.6}$$Sr$$_{0.4}$$MnO$$_3$$ thin films studied by X-ray magnetic circular dichroism

Shibata, Goro*; Yoshimatsu, Kohei*; Sakai, Enju*; Singh, V. R.*; Verma, V.*; Ishigami, Keisuke*; Harano, Takayuki*; Kadono, Toshiharu*; Takeda, Yukiharu; Okane, Tetsuo; et al.

Physical Review B, 89(23), p.235123_1 - 235123_5, 2014/06

AA2015-0419.pdf:0.33MB

 Times Cited Count:19 Percentile:66.76(Materials Science, Multidisciplinary)

Journal Articles

Soft X-ray magnetic circular dichroism study of Ca$$_{1-x}$$Sr$$_x$$RuO$$_3$$ across the ferromagnetic quantum phase transition

Okamoto, Jun*; Okane, Tetsuo; Saito, Yuji; Terai, Kota*; Fujimori, Shinichi; Muramatsu, Yasuji*; Yoshii, Kenji; Mamiya, Kazutoshi*; Koide, Tsuneharu*; Fujimori, Atsushi; et al.

Physical Review B, 76(18), p.184441_1 - 184441_5, 2007/11

 Times Cited Count:34 Percentile:76.91(Materials Science, Multidisciplinary)

Ca$$_{1-x}$$Sr$$_x$$RuO$$_3$$, which is ferromagnetic for Sr concentration x $$>$$ 0.3, has been studied by X-ray magnetic circular dichroism (XMCD) in Ru 3$$p$$ and O 1$$s$$ core-level X-ray absorption. XMCD signals appear at x $$sim$$ 0.3 and monotonically increases with x in the ferromagnetic phase. While the monotonic increase of the XMCD signals with x is of a typical Stoner-type, the absence of appreciable change in the spectral line shapes of both the Ru 3$$p$$ and O 1$$s$$ XMCD spectra indicate that the itinerant-electron ferromagnetism in Ca$$_{1-x}$$Sr$$_x$$RuO$$_3$$ is influenced by strong electron correlation.

Journal Articles

Antiferromagnetic-to-ferromagnetic transition induced by diluted Co in SrFe$$_{1-x}$$Co$$_x$$O$$_3$$:Magnetic circular X-ray dichroism study

Okamoto, Jun*; Mamiya, Kazutoshi*; Fujimori, Shinichi; Okane, Tetsuo; Saito, Yuji; Muramatsu, Yasuji*; Yoshii, Kenji; Fujimori, Atsushi*; Tanaka, Arata*; Abbate, M.*; et al.

Physical Review B, 71(10), p.104401_1 - 104401_5, 2005/03

 Times Cited Count:20 Percentile:61.99(Materials Science, Multidisciplinary)

The antiferromagnetic-to-ferromagnetic transition in SrFe$$_{1-x}$$Co$$_x$$O$$_3$$ ($$x_c$$$$simeq$$0.15) induced by Co doping has been studied by magnetic circular X-ray dichroism. The orbital and spin magnetic moments of the Fe and Co 3$$d$$ states under the magenetic field of 2 T are found to show different $$x$$ dependences: The spin polarization of Fe 3$$d$$ gradually increases with Co concentration; On the other hand, a large spin polarization of Co 3$$d$$ is induced already in the antiferromagnetic phase, indicating that the Co moment is nearly fully alligned already in the antiferromagnetic phase. This suggests that the alignment of the Fe magnetic moment in SrFe$$_{1-x}$$Co$$_x$$O$$_3$$ is induced by interaction with doped Co magnetic moment. Possible formation of ferromagnetic Co rich region is discussed.

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