Coherent Spin-valley polarization characteristics of silicene field effect transistor
Journal of Multidisciplinary Engineering Science and Technology (JMEST) • 2017
معلومات البحث
المؤلفون
Ibrahim S. Ahmed;Mina D. Asham;Adel H. Phillips
الكلمات المفتاحية
component; Normal/ferromagnetic/ normal silicene junction; ac-field; magnetic field; spin-resolved conductance; valley-resolved conductance; spin polarization; valley polarization.
المجلة العلمية
Journal of Multidisciplinary Engineering Science and Technology (JMEST)
الناشر
Ibrahim S. Ahmed
المجلد
4
العدد
2
الصفحات
8
publication.type
International
رابط البحث
Not Available
المواد المرفقة
Not Available
الملخص
The quantum spin and valley transport characteristics in normal silicene/ferromagnetic silicene/ normal silicene junction are investigated under the effects of magnetic field and the frequency of the induced ac-field. The spin and valley resolved conductances are deduced by solving the Dirac equation. Numerical calculations are performed and results show an oscillatory behavior to both spin and valley resolved conductances which due to resonant tunneling regime of the confined states of ferromagnetic silicene. Spin and valley polarizations are calculated. Their values show that spin and valley polarizations might be tuned by the applied gate voltage, or in other words, by electric field. The present paper is very promising for spintronics application of silicene.
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