1. Electric and magnetic field modulated energy dispersion, conductivity and optical response in double quantum wire with spin-orbit interactions
- Author
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Serpil Sakiroglu, B. Gisi, Ismail Sokmen, Hüseyin Sari, E. Kasapoglu, Yenal Karaaslan, and [Karaaslan, Y. -- Gisi, B.] Dokuz Eylul Univ, Grad Sch Nat & Appl Sci, Phys Dept, TR-35390 Izmir, Turkey -- [Sakiroglu, S. -- Sokmen, I.] Dokuz Eylul Univ, Fac Sci, Phys Dept, TR-35390 Izmir, Turkey -- [Kasapoglu, E.] Cumhuriyet Univ, Fac Sci, Phys Dept, TR-58140 Sivas, Turkey -- [Sari, H.] Cumhuriyet Univ, Fac Educ, Sci Teaching Dept, TR-58140 Sivas, Turkey
- Subjects
Physics ,Condensed matter physics ,Optical properties ,Oscillation ,Double quantum wire ,Ballistic conductance ,General Physics and Astronomy ,02 engineering and technology ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,021001 nanoscience & nanotechnology ,01 natural sciences ,Magnetic field ,Electric field ,0103 physical sciences ,External field ,Spin-orbit interactions ,Anomaly (physics) ,010306 general physics ,0210 nano-technology ,Absorption (electromagnetic radiation) ,Electronic band structure ,Refractive index ,Spin-½ - Abstract
WOS: 000423886800011, We study the influence of electric field on the electronic energy band structure, zero-temperature ballistic conductivity and optical properties of double quantum wire. System described by double well anharmonic confinement potential is exposed to a perpendicular magnetic field and Rashba and Dresselhaus spin-orbit interactions. Numerical results show up that the combined effects of internal and external agents cause the formation of crossing, anticrossing, camel-back/anomaly structures and the lateral, downward/upward shifts in the energy dispersion. The anomalies in the energy subbands give rise to the oscillation patterns in the ballistic conductance, and the energy shifts bring about the shift in the peak positions of optical absorption coefficients and refractive index changes. (C) 2017 Elsevier B.V. All rights reserved., Scientific and Technological Research Council of Turkey [TUBITAK BIDEB 2211], The authors Y. Karaaslan and B. Gisi would like to thank the Scientific and Technological Research Council of Turkey (TUBITAK BIDEB 2211) for doctoral scholarship.
- Published
- 2018