Zobrazeno 1 - 10
of 456
pro vyhledávání: '"Okane, T."'
Autor:
Ishigami, K., Yoshimatsu, K., Toyota, D., Takizawa, M., Yoshida, T., Shibata, G., Harano, T., Takahashi, Y., Kadono, T., Verma, V. K., Singh, V. R., Takeda, Y., Okane, T., Saitoh, Y., Yamagami, H., Koide, T., Oshima, M., Kumigashira, H., Fujimori, A.
Publikováno v:
Phys. Rev. B 92, 064402 (2015)
Thin films of the ferromagnetic metal SrRuO3 (SRO) show a varying easy magnetization axis depending on the epitaxial strain and undergo a metal-to-insulator transition with decreasing film thickness. We have investigated the magnetic properties of SR
Externí odkaz:
http://arxiv.org/abs/1505.05692
Autor:
Kobayashi, M., Anh, L. D., Hai, P. N., Takeda, Y., Sakamoto, S., Kadono, T., Okane, T., Saitoh, Y., Yamagami, H., Harada, Y., Oshima, M., Tanaka, M., Fujimori, A.
The electronic and magnetic properties of Fe atoms in the ferromagnetic semiconductor (In,Fe)As codoped with Be have been studied by x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) at the Fe $L_{2,3}$ edge. The XAS an
Externí odkaz:
http://arxiv.org/abs/1405.5130
Autor:
Takahashi, Y., Kadono, T., Singh, V. R., Verma, V. K., Ishigami, K., Shibata, G., Harano, T., Fujimori, A., Takeda, Y., Okane, T., Saitoh, Y., Yamagami, H., Yamamoto, S., Takano, M.
Publikováno v:
Phys. Rev. B 90, 024423 (2014)
We have investigated the spin and orbital magnetic moments of Fe in FePt nanoparticles in the $L$1$_{0}$-ordered phase coated with SiO$_{2}$ by x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) measurements at the Fe $L
Externí odkaz:
http://arxiv.org/abs/1310.8370
Autor:
Harano, T., Shibata, G., Ishigami, K., Takashashi, Y., Verma, V. K., Singh, V. R., Kadono, T., Fujimori, A., Takeda, Y., Okane, T., Saitoh, Y., Yamagami, H., Koide, T., Yamada, H., Sawa, A., Kawasaki, M., Tokura, Y., Tanaka, A.
Publikováno v:
Appl. Phys. Lett. 102, 222404 (2013)
The coercivity of La$_{1-x}$Sr$_x$MnO$_3$ thin films can be enhanced by Ru substitution for Mn. In order to elucidate its mechanism, we performed soft x-ray absorption and magnetic circular dichroism measurements at the Ru M$_{2,3}$ and Mn L$_{2,3}$
Externí odkaz:
http://arxiv.org/abs/1309.2916
Enhanced ferromagnetic moment in Co-doped BiFeO3 thin films studied by soft X-ray circular dichroism
Autor:
Singh, V. R., Verma, V. K., Ishigami, K., Shibata, G., Yamazaki, Y., Fujimori, A., Takeda, Y., Okane, T., Saitoh, Y., Yamagami, H., Nakamura, Y., Azuma, M., Shimakawa, Y.
Publikováno v:
J. Appl. Phys. 114, 103905 (2013)
BiFeO$_3$ (BFO) shows both ferroelectricity and magnetic ordering at room temperature but its ferromagnetic component, which is due to spin canting, is negligible. Substitution of transition-metal atoms such as Co for Fe is known to enhance the ferro
Externí odkaz:
http://arxiv.org/abs/1308.5672
Autor:
Kataoka, T., Sakamoto, Y., Yamazaki, Y., Singh, V. R., Fujimori, A., Takeda, Y., Ohkochi, T., Fujimori, S. -I., Okane, T., Saitoh, Y., Yamagami, H., Tanaka, A.
Publikováno v:
Solid State Communications, 152, 806 (2012)
We have studied the electronic structure of the molecular ferromagnet $\beta$-Mn phthalocyanine ($\beta$-MnPc) in a polycrystalline form, which has been reported to show ferromagnetism at T$<$8.6 K, by x-ray absorption spectroscopy (XAS) and x-ray ma
Externí odkaz:
http://arxiv.org/abs/1201.4076
Autor:
Kataoka, T., Yamazaki, Y., Singh, V. R., Sakamoto, Y., Fujimori, A., Takeda, Y., Ohkochi, T., Fujimori, S. -I., Okane, T., Saitoh, Y., Yamagami, H., Tanaka, A., Kapilashrami, M., Belova, L., Rao, K. V.
Publikováno v:
Appl. Phys. Lett. 99, 132508 (2011)
We have investigated the electronic structure of ZnO:Mn and ZnO:Mn,N thin films using x-ray magnetic circular dichroism (XMCD) and resonance-photoemission spectroscopy. From the Mn 2$p$$\rightarrow3d$ XMCD results, it is shown that, while XMCD signal
Externí odkaz:
http://arxiv.org/abs/1201.0006
Autor:
Kobayashi, M., Ishida, Y., Hwang, J. I., Osafune, Y., Fujimori, A., Takeda, Y., Okane, T., Saitoh, Y., Kobayashi, K., Saeki, H., Kawai, T., Tabata, H.
Publikováno v:
Phys. Rev. B 81, 075204 (2010) [7 pages]
The magnetic properties of Zn$_{1-x}$Co$_x$O ($x=0.07$ and 0.10) thin films, which were homo-epitaxially grown on a ZnO(0001) substrates with varying relatively high oxygen pressure, have been investigated using x-ray magnetic circular dichroism (XMC
Externí odkaz:
http://arxiv.org/abs/1001.0712
We have investigated the electronic states of the uranium monochalcogenide US, which is a typical ferromagnetic uranium compound, using soft x-ray photoemission spectroscopy (SX-PES). In early ultraviolet photoemission spectroscopy studies, two peak
Externí odkaz:
http://arxiv.org/abs/0909.2917
Autor:
Okane, T., Ohkochi, T., Takeda, Y., Fujimori, S. -i., Yasui, A., Saitoh, Y., Yamagami, H., Fujimori, A., Matsumoto, Y., Sugi, M., Kimura, N., Komatsubara, T., Aoki, H.
Publikováno v:
Phys. Rev. Lett. 102, 216401 (2009)
Angle-resolved photoelectron spectroscopy in the Ce 3d-4f excitation region was measured for the paramagnetic state of CeRu2Si2, CeRu2(Si0.82Ge0.18)2, and LaRu2Si2 to investigate the changes of the 4$f$ electron Fermi surfaces around the quantum crit
Externí odkaz:
http://arxiv.org/abs/0906.3078