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Journal Articles

Thermal stability of Co/SiO$$_{2}$$ multilayers for use in the soft X-ray region

Ishino, Masahiko; Koike, Masato; Kanehira, Mika*; Sato, Futami*; Terauchi, Masami*; Sano, Kazuo*

Journal of Applied Physics, 102(2), p.023513_1 - 023513_5, 2007/07

https://doi.org/10.1063/1.2756741
 Times Cited Count：6 Percentile：26.4(Physics, Applied)

The heat stability of Co/SiO$$_{2}$$ multilayers was evaluated. Multilayer samples were deposited on Si substrates by means of the ion beam sputtering method and annealed at temperatures from 100-600 $$^{circ}$$C in a vacuum furnace. For the structural and optical evaluations, small angle X-ray diffraction measurements, soft X-ray reflectivity measurement in the 1 keV energy region, and transmission electron microscopy observations were carried out. As the results, the Co/SiO$$_{2}$$ multilayers annealed up to 400 $$^{circ}$$C maintained the initial multilayer structure and kept almost the same X-ray reflectivity as the as-deposited sample. A deterioration of the multilayer structure caused by the growth of Co grains was found on the samples annealed over 500 $$^{circ}$$C, and the soft X-ray reflectivity dropped in accordance with the deterioration of the multilayer structure.

Oral presentation

Developments of Co/SiO$$_{2}$$ multilayer optics

Ishino, Masahiko; Koike, Masato; Kanehira, Mika*; Sato, Futami*; Terauchi, Masami*; Sano, Kazuo*; Heimann, P. A.*; Gullikson, E. M.*

no journal, , 

no abstracts in English

Oral presentation

Study on mutation breeding with the use of ion-beam in Chinese yam and Japanese yam

Kawasaki, Michio*; Takisawa, Misato*; Kanehira, Saki*; Sakio, Mika*; Honda, Kazushige*; Islam, M. N.*; Suto, Hiroki*; Nozawa, Shigeki; Akita, Yusuke*; Narumi, Issei

no journal, , 

no abstracts in English

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