کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5425409 | 1395855 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nano-crater formation on a Si(1 1 1)-(7 Ã 7) surface by slow highly charged ion-impact
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Using scanning tunneling microscopy (STM) and time of flight secondary ion mass spectrometry (TOF/SIMS), we observed radiation effects on a Si(1 1 1)-(7 Ã 7) surface in the collision of a single highly charged ion (HCI) with a charge state q up to q = 50. The STM observation with atomic resolution revealed that a nanometer sized crater-like structure was created by a single HCI impact, where the size increased rapidly with q. The secondary ion yields also increased with q in which multiply charged Si ions (Sin+) were clearly observed in higher q HCI-collisions. The sputtering mechanism is briefly discussed, based on the so-called Coulomb explosion model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 601, Issue 3, 1 February 2007, Pages 723-727
Journal: Surface Science - Volume 601, Issue 3, 1 February 2007, Pages 723-727
نویسندگان
Masahide Tona, Hirofumi Watanabe, Satoshi Takahashi, Nobuyuki Nakamura, Nobuo Yoshiyasu, Makoto Sakurai, Toshifumi Terui, Shinro Mashiko, Chikashi Yamada, Shunsuke Ohtani,