کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1523534 | 1511830 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nitrogen doping of CVD multiwalled carbon nanotubes: Observation of a large g-factor shift
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Nitrogen doping of CVD multiwalled carbon nanotubes: Observation of a large g-factor shift Nitrogen doping of CVD multiwalled carbon nanotubes: Observation of a large g-factor shift](/preview/png/1523534.png)
چکیده انگلیسی
⺠High quality nitrogen doped multiwalled carbon nanotubes were synthesized using the floating catalyst CVD method. ⺠Systematic ESR measurements of the carbon products produced, in the temperature range of 293-400 K showed line widths that were in general very large â¼Â kOe. ⺠A large g-factor shift in samples of N-CNTs from that of the free electron g-factor was observed. Further, the shift increased with increasing temperature. The large g shift has been analysed in terms of Elliott-Wagoner and Bottleneck models. ⺠The temperature dependence of the g shift in the N-CNT samples rules out the Elliott-Wagoner type spin-orbit coupling scenario. ⺠The large g shift and temperature dependence can be qualitatively explained in terms of Bottleneck model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 130, Issue 3, 1 November 2011, Pages 1182-1186
Journal: Materials Chemistry and Physics - Volume 130, Issue 3, 1 November 2011, Pages 1182-1186
نویسندگان
Sabelo D. Mhlanga, Edward N. Nxumalo, Neil J. Coville, Vallabhapurapu V. Srinivasu,