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Ballistic Transport Properties of Spin Field-Effect Transistors Built on Silicon and InAs Fins

机译:基于硅和InAs鳍片的自旋场效应晶体管的弹道输运特性

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摘要

We investigate the transport properties of ballistic spin field-effect transistors (SpinFET). We show that temperature exerts a significant influence on the device characteristics. For the InAs-based SpinFET an ambient temperature higher than T=50K leads to the absence of the ability to modulate the value of the tunneling magnetoresistance through changing the bandgap mismatch between the channel and the contacts. The length of the semiconductor channel impacts significantly the device characteristics. A shorter channel is preferred for potential operations at room temperature. For the silicon-based SpinFET the spin-orbit interaction has to be taken in the Dresselhaus form. We demonstrate that silicon fins with [100] orientation exhibit a stronger dependence on the value of the spin-orbit interaction and are thus preferable for practical realization of SpinFETs.
机译:我们研究了弹道自旋场效应晶体管(SpinFET)的传输特性。我们表明温度对器件特性有重要影响。对于基于InAs的SpinFET,高于T = 50K的环境温度导致无法通过更改通道和触点之间的带隙失配来调节隧道磁阻值。半导体通道的长度会严重影响器件特性。对于在室温下可能的操作,首选较短的通道。对于基于硅的SpinFET,自旋轨道相互作用必须采用Dresselhaus形式。我们证明,具有[100]取向的硅鳍片对自旋轨道相互作用的值显示出更强的依赖性,因此对于实际实现SpinFET而言是优选的。

著录项

  • 来源
  • 会议地点 Joao Pessoa(BR);Joao Pessoa(BR)
  • 作者单位

    Institute for Microelectronics, TU Wien, Gusshausstrasse 27-29, A-1040 Wien, Austria;

    Institute for Microelectronics, TU Wien, Gusshausstrasse 27-29, A-1040 Wien, Austria;

    Institute for Microelectronics, TU Wien, Gusshausstrasse 27-29, A-1040 Wien, Austria;

    Institute for Microelectronics, TU Wien, Gusshausstrasse 27-29, A-1040 Wien, Austria;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 半导体技术;
  • 关键词

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