Structural modification of swift heavy ion irradiated amorphous Ge layers
نویسندگان
چکیده
منابع مشابه
Structural modification of swift heavy ion irradiated amorphous germanium layers
Swift heavy ion (SHI) irradiation of conventional glasses results in non-saturable plastic flow as a consequence of the ion hammering effect [1]. SHI irradiation of amorphous Si (a-Si) at non-perpendicular incidence also leads to unsaturated plastic flow, which shows a linear dependence on the ion fluence. The positive direction of flow suggests that a liquid phase with density similar to that ...
متن کاملStructural modification of swift heavy ion irradiated amorphous Ge layers at low temperatures
Recent room-temperature irradiation experiments exposing amorphous germanium (a-Ge) to 185-MeV heavy ions (SHI) at the ANU accelerator facility (Canberra, Australia) revealed strong volume expansions [1]. A detailed study of this effect using various irradiation parameters [2] demonstrates that this swelling is caused by the formation and growth of randomly distributed voids leading to a gradua...
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متن کاملTracks and voids in amorphous Ge induced by swift heavy-ion irradiation.
Ion tracks formed in amorphous Ge by swift heavy-ion irradiation have been identified with experiment and modeling to yield unambiguous evidence of tracks in an amorphous semiconductor. Their underdense core and overdense shell result from quenched-in radially outward material flow. Following a solid-to-liquid phase transformation, the volume contraction necessary to accommodate the high-densit...
متن کاملLow fluence swift heavy ion irradiation of amorphous germanium
Synchrotron based Small Angle X-ray Scattering (SAXS) give evidence of SHI irradiation induced ion-tracks in a-Ge. The scattering spectra of the ion-tracks can be fitted by using a model function of a cylindrical electron density distribution with an internal core shell structure. Core and shell are both of constant electron density but one being overthe other under-dense with respect to the su...
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ژورنال
عنوان ژورنال: Journal of Physics D: Applied Physics
سال: 2009
ISSN: 0022-3727,1361-6463
DOI: 10.1088/0022-3727/42/11/115402