Electronic charge and spin density distribution in a quantum ring with spin-orbit and Coulomb interactions

Csaba Daday; Andrei Manolescu; D. C. Marinescu; Vidar Gudmundsson

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Electronic charge and spin density distribution in a quantum ring with spin-orbit and Coulomb interactions

机译：具有自旋轨道和库仑相互作用的量子环中的电荷和自旋密度分布

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Charge and spin density distributions are studied within a nanoring structure endowed with Rashba and Dresselhaus spin-orbit interactions (SOIs). For a small number of electrons, in the presence of an external magnetic field and of the Coulomb interaction, the energy spectrum of the system is calculated through an exact numerical diagonalization procedure. The eigenstates thus determined are used to estimate the charge and spin densities around the ring. We find that when more than two electrons are considered, the charge density deformations induced by SOIs are dramatically flattened by the Coulomb repulsion, while the spin density deformations are amplified.

机译：在具有Rashba和Dresselhaus自旋轨道相互作用（SOI）的纳米环结构中研究了电荷和自旋密度分布。对于少量电子，在存在外部磁场和库仑相互作用的情况下，系统的能谱是通过精确的数值对角化过程计算的。这样确定的本征态用于估计环周围的电荷和自旋密度。我们发现，当考虑两个以上的电子时，SOI感应的电荷密度变形会因库仑排斥而显着平坦，而自旋密度变形会被放大。

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《Physical review》 |2011年第11期|p.744-749|共6页
作者
Csaba Daday; Andrei Manolescu; D. C. Marinescu; Vidar Gudmundsson;
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School of Science and Engineering, Reykjavik University, Menntavegur 1, IS-101 Reykjavik, Iceland,Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland;

School of Science and Engineering, Reykjavik University, Menntavegur 1, IS-101 Reykjavik, Iceland;

Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29621, USA;

Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland;

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机译：使用格林函数技术的量子环中的持久电荷和自旋电流：磁通量和自旋轨道相互作用之间的相互作用
2. Effects of geometry and linearly polarized cavity photons on charge and spin currents in a quantum ring with spin-orbit interactions [J] . Thorsten Arnold, Chi-Shung Tang, Andrei Manolescu, The European physical journal, B. Condensed matter physics . 2014,第5期

机译：几何形状和线偏振腔光子对具有自旋轨道相互作用的量子环中电荷和自旋电流的影响
3. Aharonov-Anandan effect induced by spin-orbit interaction and charge-density waves in mesoscopic rings [J] . Yi YS., Bishop AR. Physical Review, B. Condensed Matter . 1998,第7期

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4. Optical properties of CdS quantum dots: the key role of the spin-orbit and coulomb interactions [C] . M.Chamarro, V.Voliotis, M.Dib, Symposium on semiconductor quantum dots . 2000

机译：CDS量子点的光学性质：旋转轨道和库仑相互作用的关键作用
5. Coulomb Interaction Effects In Semiconductor Heterostructures With Spin-Orbit Interaction [D] . Capps, Jeremy Patrick 2015

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6. Unique Spin Vortices and Topological Charges in Quantum Dots with Spin-orbit Couplings [O] . Wenchen Luo, Amin Naseri, Jesko Sirker, -1

机译：自旋轨道耦合的量子点中的独特自旋涡旋和拓扑电荷
7. Electronic charge and spin density distribution in a quantum ring with spin-orbit and Coulomb interactions [O] . Daday, Csaba, Manolescu, Andrei, Marinescu, D. C., 2011

机译：量子环中的电荷和自旋密度分布自旋轨道和库仑相互作用

Electronic charge and spin density distribution in a quantum ring with spin-orbit and Coulomb interactions

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