Semi-metallic material based on zigzag germanene nanoribbons and preparation method thereof

A kind of semi-metal material, nano-ribbon technology, applied in the field of electronics

Active Publication Date: 2019-09-10
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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Problems solved by technology

However, in the existing semi-metallic germanene material preparation process, most of them need to adjust the spin characteristics of zigzag germanene nanoribbons by applying external electric field or exchange field, which will bring many problems

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  • Semi-metallic material based on zigzag germanene nanoribbons and preparation method thereof
  • Semi-metallic material based on zigzag germanene nanoribbons and preparation method thereof
  • Semi-metallic material based on zigzag germanene nanoribbons and preparation method thereof

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Embodiment Construction

[0023] In order to make the technical solutions and technical effects of the present invention easier to understand, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] In view of the defects of the prior art, the present invention mainly utilizes the first-principle method based on density functional function, first simulates and calculates the ideal zigzag germanene nanoribbon hydrogenated at the edge, and then studies the zigzag in the case of introducing boron-nitrogen co-doping The spin-dependent properties of germanene nanobelts, and the spin characteristics of germanene nanobelts can be adjusted by adjusting the distance between doping atoms, and compared with ideal zigzag germanene nanoribbons, and then it is proposed to achieve semi-metallic properties A feasible approach for zigzag germanene nanoribbons.

[0025] Specifically, in one embodiment of the present invention, a model includi...

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Abstract

The invention discloses a half-metal material based on a zigzag germanene nanobelt and a preparation method thereof. In one embodiment of the present invention, using a first-principles approach based on density functional theory, the ideal zigzag germanene nanoribbon with edge hydrogenation is first optimized, and then the effect of heterodoping on the zigzag germanene nanoribbon is studied. The influence of spin characteristics, by introducing boron and nitrogen co-doping and changing the doping position to adjust the spin characteristics of germanene nanoribbons, and comparing with ideal zigzag germanene nanoribbons, so as to obtain germanene with semi-metallic properties nanobelt. The present invention does not need to adjust the spin characteristics of the zigzag germanene nanoribbon through the action of an external field such as an external electric field or an exchange field, and can realize a germanene nanoribbon with semi-metallic properties only by adjusting the distance between doping atoms , so that spintronic devices based on germanene nanobelts can be realized conveniently.

Description

technical field [0001] The invention relates to a preparation process of germanene nanomaterials, in particular to a half-metal material based on zigzag germanene nanobelts and a preparation method thereof, belonging to the field of electronic technology. Background technique [0002] In recent decades, with the continuous advancement of science and technology, researchers have made great achievements in silicon-based electronic devices, and have widely applied them to various fields related to computers. From the perspective of its development trend, electronic The miniaturization of device size is a remarkable feature of its development. In fact, circuits with higher integration, faster response, and lower power consumption are obtained through the continuous miniaturization of silicon-based transistors. At present, the integration level of electronic chips in VLSI technology is very high, and the line width of integrated circuits has also dropped to tens of nanometers, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L29/06H01L29/16H01L21/02H01L21/265H01L29/66B82Y30/00B82Y40/00
Inventor 王志勇曾中明
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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