Autor: |
Kasukabe, Yoshitaka, Yamada, Yukio |
Zdroj: |
Japanese Journal of Applied Physics; October 1990, Vol. 29 Issue: 10 pL1904-L1904, 1p |
Abstrakt: |
The growth and structure of Ti films evaporated on ultra-high-vacuum- and air-cleaved NaCl substrates at room temperature have been studied by reflection high-energy electron diffraction. The 2 nm-thick film on the former showed bcc- and CaF2-type (TiH1.5) reflections while that on the latter showed TiH1.5ones immediately after the evaporation. Judging from the lattice parameter (0.33 nm), the bcc crystallite was analyzed to be ?-Ti. This is the first observation of ?-Ti grown in evaporated Ti films. The ?-Ti changed into TiH1.5with time. This spontaneous hydrogenation mechanism of the evaporated Ti films is discussed. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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