کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9585164 | 1392331 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Decay of core excitations in bulk h-BN studied with resonant Auger spectroscopy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Non-radiative decay of core excitations at the B 1s and N 1s absorption edges of bulk hexagonal boron nitride (h-BN) has been studied with resonant Auger spectroscopy. In order to reproduce the bulk properties of the sample while keeping it electrically conducting, we have grown reasonably thick (more than 20Â nm) polycrystalline films of h-BN on a Ni(1Â 1Â 1) surface by thermal cracking of borazine vapor. The probability of the participator Auger process in the non-radiative decay of the B 1sâ1Ï* and N 1sâ1Ï* excitations has been found to be very high (31%) and rather low (below 0.5%), respectively. The drastic difference between the participator Auger decay probabilities of these two excitations has been explained in terms of different localization of the electrons promoted into the lowest unoccupied Ï* state on the cationic (B) and anionic (N) sites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volume 148, Issue 1, July 2005, Pages 59-64
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volume 148, Issue 1, July 2005, Pages 59-64
نویسندگان
A.B. Preobrajenski, A.S. Vinogradov, N. MÃ¥rtensson,