کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1866263 1037948 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical properties of semiconducting carbon nanotubes under axial magnetic field
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Optical properties of semiconducting carbon nanotubes under axial magnetic field
چکیده انگلیسی
The linear polarizability absorption spectra of semiconducting carbon nanotubes under axial magnetic field (B) have been calculated by the π-orbital tight-binding model and sum-over-state method. We have found that the optical spectra are split by the B-induced symmetry breaking and the amount of splitting increases with increase of magnetic field. Although the results are obtained within the noninteracting tight-binding model, the amount of splitting is still consistent with the experimental observation, offering a fast estimation of the B-induced splitting. Our numerical results also indicate that the splitting amounts of the second and third absorption peaks are close to that of the first one, which may be observed by the future experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 372, Issue 10, 3 March 2008, Pages 1712-1716
نویسندگان
, ,