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Journal Articles

Optical ionization of DX center in AlGaAs:Se by inner-shell excitation

Yoshino, Yoko; Takarabe, Kenichi*; Ishii, Masashi*; Katayama, Yoshinori; Shimomura, Osamu

Physica B; Condensed Matter, 273-274, p.781 - 783, 1999/12

https://doi.org/10.1016/S0921-4526(99)00648-1

Times Cited Count：1 Percentile：8.71(Physics, Condensed Matter)

DX state is strongly localized. This nature could be investigated by observing relaxation process of localized electrons to emptied inner shells. We have found two different optical ionization process of the DX center in Al $_{x}$ Ga $_{1-x}$ As:Se (x=0.33, $N_{rm Se}=5times10^{17}$ (cm $^{-3}$ )) by using synchrotron radiation. They are tentatively assigned to be a direct lift of an inner-shell electron to the conduction band (CB) followed by a capture of an electron at the DX center to the emptied inner shell $({rm DX}^{-}+hnu ({rm L,}$ K-edge $)rightarrow {rm DX}^{0}+e_{rm CB})$ and the Auger ionization of one electron of the DX center to the CB followed by a capture of another electron to the emptied inner shell $({rm DX}^{-}+hnu ({rm L,}$ K-edge $)rightarrow {rm DX}^{+}+e_{rm CB}+e_{rm vacuum})$ .

Journal Articles

Effects of the non quasi steady state on the emission lines in plasmas

Kato, Takako*; *; Murakami, Izumi*; *; Kubo, Hirotaka; Shimizu, Katsuhiro

Proc. of 1996 Int. Conf. on Plasma Physics, 1, p.730 - 733, 1996/00

no abstracts in English

Journal Articles

Multiple inner-shell ionization in oxygen produced by ion bombardment in the MeV range

Kawatsura, Kiyoshi; Ozawa, K.; *; *

Phys.Lett.,A, 58(7), p.446 - 448, 1976/07

no abstracts in English