تقرير
Thermoelectric phenomena in an antiferromagnetic helix: Role of electric field
| العنوان: | Thermoelectric phenomena in an antiferromagnetic helix: Role of electric field |
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| المؤلفون: | Mondal, Kallol, Ganguly, Sudin, Maiti, Santanu K. |
| المصدر: | Phys. Rev. B 108, 195401 (2023) |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Disordered Systems and Neural Networks, Physics - Computational Physics, Quantum Physics |
| الوصف: | The charge and spin-dependent thermoelectric responses are investigated on a single-helical molecule possessing a collinear antiferromagnetic spin arrangement with zero net magnetization in the presence of a transverse electric field. Both the short and long-range hopping scenarios are considered, which mimic biological systems like single-stranded DNA and $\alpha$-protein molecules. A non-equilibrium Green's function formalism is employed following the Landauer-Buttiker prescription to study the thermoelectric phenomena. The detailed dependence of the basic thermoelectric quantities on helicity, electric field, temperature etc., are elaborated on, and the underlying physics is explained accordingly. The charge and spin \textit{figure of merits} are computed and compared critically. For a more accurate estimation, the phononic contribution towards thermal conductance is also included. The present proposition shows a favorable spin-dependent thermoelectric response compared to the charge counterpart. Comment: 11 pages, 8 figures, comments are Welcome |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.108.195401 |
| URL الوصول: | http://arxiv.org/abs/2305.05582 |
| رقم الأكسشن: | edsarx.2305.05582 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.108.195401 |
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