Tunneling in a Rippled Graphene Superlattice with Spin Dependence and a Mass Term

被引：1
作者：
El-hassouny, Jaouad [1 ]
Jellal, Ahmed [2 ,3 ]
Atmani, El Houssine [1 ]
机构：
[1] Hassan II Univ, Fac Sci & Tech, Lab Nanostruct & Adv Mat Mech & Thermofluids, POB 146, Mohammadia 28806, Morocco
[2] Choual Doukkali Univ, Fac Sci, Lab Theoret Phys, POB 20, El Jadida 24000, Morocco
[3] Canadian Quantum Res Ctr, 204-3002 32 Ave, Vernon, BC V1T 2L7, Canada
来源：
ANNALEN DER PHYSIK | 2022年 / 534卷 / 10期
关键词：
conductance; graphene; mass terms; spin transmission; spin reflection; superlattices; ELECTRICAL-PROPERTIES; SPATIAL VARIATION; SCATTERING;
D O I：
10.1002/andp.202200266
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The insertion of the band gap Delta in a rippled graphene superlattice leads to new outcomes, as demonstrated. The essential thing is the appearance of opposite-spin transmissions, which increases with Delta and vanishes without it. Furthermore, compared to the Delta=0$\Delta =0$ scenario, the duration of the suppression of the transmission with the same spin is longer, with many peaks. The maximum value of transmissions with the same spin declines and remains around unity. Furthermore, for particular energy values, a shift in the behavior of the transmission channels is found. As a result, it is demonstrated that with Delta, transmission filtering becomes crucial. Finally, as a result of the band gap, distinct variations in total conductance are discovered.
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页数：9
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