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Эта публикация цитируется в 2 научных статьях (всего в 2 статьях)
Полупроводники
Band-gap sensitived Seebeck effect in heavy group-IV monolayers
Y. Xuab, X. Lia, L. Qianc a College of Physics Science and Technology, Yangzhou University Yangzhou, 225002, China
b National Laboratory of Solid State Microstructures, Department of Physics,
and Collaborative Innovation Center of Advanced Microstructures, Nanjing University,
Nanjing, 210093, China
c School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
Аннотация:
We have systematically investigated the spin- and valley-dependent Seebeck effect in irradiated heavy group-IV monolayers including silicene, germanene, and stanene by means of semi-classical Boltzmann equation in diffusive regime. Due to the interplay of strong intrinsic spin-orbit coupling, perpendicular electric field, and off-resonant light field, the temperature-driven spin and valley conductivity can be controllable effectively. Except for numerical results, the amplitude of Seebeck coefficient is analyzed and found to be in direct proportion to the band gap at high temperature. It supplies a flexible method to modulate the Seebeck effect. In addition, we have compared the thermoelectric transport properties of different group-IV materials and found that the figure of merit shows great enhancement from silicene to stanene. These findings are excepted to provide a platform for the heavy group-IV materials in future spin–valley thermal and energy-saving devices.
Ключевые слова:
Seebeck effect, heavy group-IV materials, off-resonant light, spin and valley caloritronics.
Поступила в редакцию: 05.05.2020 Исправленный вариант: 30.06.2020 Принята в печать: 01.07.2020
Образец цитирования:
Y. Xu, X. Li, L. Qian, “Band-gap sensitived Seebeck effect in heavy group-IV monolayers”, Физика твердого тела, 62:11 (2020), 1834; Phys. Solid State, 62:11 (2020), 2052–2057
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/ftt10169 https://www.mathnet.ru/rus/ftt/v62/i11/p1834
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