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Maeda, Yoshihito; Narumi, Kazumasa; Sakai, Seiji; Terai, Yoshikazu*; Hamaya, Kohei*; Sado, Taizo*; Miyao, Masanobu*
Thin Solid Films, 519(24), p.8461 - 8467, 2011/10
Times Cited Count：8 Percentile：36.17(Materials Science, Multidisciplinary)
-FeSi
formed by heat-treatment in ultra-high vacuum and their influence for homoepitaxial growthMatsumura, Seidai*; Ochiai, Kunihito*; Udono, Haruhiko*; Esaka, Fumitaka; Yamaguchi, Kenji; Yamamoto, Hiroyuki; Hojo, Kiichi
Physics Procedia, 11, p.174 - 176, 2011/02
Times Cited Count：3 Percentile：82.2(Optics)The surface structures on the surface of -FeSi substrate after heat treatment in ultra high vacuum and their influence on homoepitaxial growth were investigated. It was found that the dip structures appeared on the surface of -FeSi (100) substrate after heat treatment above 1023 K, where the evaporation of surface oxide layer (SiO
) occurred. The composition of the dip structure was Fe-rich as compared to nominal -FeSi composition (Si/Fe=2). This result indicates that the decomposition from -FeSi to 
-FeSi would occur on the surface. The surface morphology observed after heat treatment depended on the orientation of the substrate. In addition, homoepitaxial films with smooth surface on -FeSi (111) substrate at the growth temperature of 973 and 1073 K were obtained.
-FeSiYamada, Yoichi*; Mao, W.*; Asaoka, Hidehito; Yamamoto, Hiroyuki; Esaka, Fumitaka; Udono, Haruhiko*; Tsuru, Tomohito
Physics Procedia, 11, p.67 - 70, 2011/02
Times Cited Count：3 Percentile：82.2(Optics)Clean surfaces of the single crystalline -FeSi have been prepared and investigated. From XPS (X-ray Photoelectron Spectroscopy) measurements of the surface oxide, it is found that the surface Si is mainly oxidized while Fe isn't. After removing the surface oxide, clean surface can be obtained showing reasonable structure in LEED (Low-Energy Electron Diffraction) and STM (Scanning Tunneling Microscope). No drastic surface reconstruction is found reflecting strong Fe-Si bond. DFT (Density Functional Theory) calculation suggests the spin polarized surface DOS (Density Of State) when Fe comes at the surface.
-FeSi
film on -FeSi(111) substrate by X-ray photoelectron and absorption spectroscopyEsaka, Fumitaka; Yamamoto, Hiroyuki; Udono, Haruhiko*; Matsubayashi, Nobuyuki*; Yamaguchi, Kenji; Shamoto, Shinichi; Magara, Masaaki; Kimura, Takaumi
Physics Procedia, 11, p.150 - 153, 2011/02
Times Cited Count：0 Percentile：0.01(Optics)Surface characterization of homoepitaxial -FeSi film on -FeSi(111) substrate has been performed by X-ray photoelectron and X-ray absorption spectroscopy.
-FeSiMaeda, Yoshihito; Ichikawa, Takayuki*; Jonishi, Takafumi*; Narumi, Kazumasa
Physics Procedia, 11, p.83 - 86, 2011/00
Times Cited Count：0 Percentile：0.01(Optics)