کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1786306 1023412 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Band gap opening in zigzag graphene nanoribbon modulated with magnetic atoms
ترجمه فارسی عنوان
شکاف باند باز در گرافیتی نگین دار زیگزاگ با اتم های مغناطیسی مدولاسیون شده است
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی


• Electronic band structure in ZGNRs modulated with magnetic atoms.
• The opened band gap or half-metallic property can be observed in different width ZGNR.
• The Seebeck coefficients will be reversed and enlarged in narrow ZGNR.

The effects of magnetic atom on the band structure of zigzag-edged graphene nanoribbons are investigated by the density functional theory. The results show that for narrow zigzag-edged graphene nanoribbons, the band gap can be opened duo to the spin-up/spin-down charges being re-enriched on the edge sites. However, for the wide zigzag-edged graphene nanoribbons, a spin-up/spin-down half-metallic property can be observed. Moreover, it is found that the Seebeck coefficients in the narrow zigzag-edged graphene nanoribbons are reversed and enlarged, which provides a way to design novel thermoelectric device.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 14, Issue 11, November 2014, Pages 1509–1513
نویسندگان
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