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首页> 外文期刊>Journal of Applied Physics >Effect of pseudospin polarization on wave packet dynamics in graphene antidot lattices (GALs) in the presence of a normal magnetic field
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Effect of pseudospin polarization on wave packet dynamics in graphene antidot lattices (GALs) in the presence of a normal magnetic field

机译:假透视偏振对普通磁场存在下石墨烯反晶格晶格(GALS)波分组动力学的影响

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摘要

We have investigated the role of pseudospin polarization in electron wave packet dynamics in pristine graphene and in a graphene antidot lattice subject to an external magnetic field. By employing Green's function formalism, we show that the electron dynamics can be controlled by tuning pseudospin polarization. We find that in Landau quantized pristine graphene, both the propagation of an electron wave packet and Zitterbewegung oscillations strongly depend on pseudospin polarization. The electron wave packet is found to propagate in the direction of initial pseudospin polarization. We also show that, in this system, the propagation of an electron can be enhanced in any desired direction by carving a one-dimensional antidot lattice in that direction. The study suggests that a graphene antidot lattice can serve as a channel for electron transport with the possibility of tunability by means of pseudospin polarization, antidot potential, and applied normal magnetic field strength.
机译:我们研究了Pseudospin偏振在原始石墨烯中的电子波分组动力学中的作用,并在外部磁场的石墨烯反晶格中进行了作用。通过采用绿色的功能形式主义,我们表明可以通过调谐假透视极化来控制电子动力学。我们发现,在Landau量化原始石墨烯中,电子波分组的传播和ZitterBeegung振荡的传播都强烈取决于假螺纹极化。发现电子波分组在初始假透视极化方向上传播。我们还表明,在该系统中,通过在该方向上雕刻一维反陶器格子,可以在任何所需方向上增强电子的传播。该研究表明,石墨烯反晶晶片可以用作电子传输的通道,其具有通过假透视偏振,防辐射电位和施加的正常磁场强度的可调性的可能性。

著录项

  • 来源
    《Journal of Applied Physics》 |2021年第7期|074301.1-074301.12|共12页
  • 作者单位

    Department of Physics Quaid-I-Azam University Islamabad 45320 Pakistan;

    Department of Physics Stevens Institute of Technology Hoboken New Jersey 07030 USA;

    Department of Physics Quaid-I-Azam University Islamabad 45320 Pakistan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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