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Zigzag germanene nanobelt-based half-metal material and preparation method thereof

A technology of semi-metallic materials and nanobelts, applied in the field of electronics

Active Publication Date: 2017-01-04
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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  • Zigzag germanene nanobelt-based half-metal material and preparation method thereof
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  • Zigzag germanene nanobelt-based half-metal material 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 zigzag germanene nanobelt-based half-metal material and a preparation method thereof. According to one embodiment of the invention, the method of first principles based on density functional theory is implemented. Firstly, an edge-hydrogenated ideal zigzag germanene nanobelt is optimized. Secondly, the influence of heterogeneous doping on the spin characteristics of the zigzag germanene nanobelt is studied. The spin characteristics of the zigzag germanene nanobelt are regulated and controlled through introducing the boron-nitrogen co-doping technique and changing the doping position thereof. Meanwhile, compared with the ideal zigzag germanene nanobelt, a germanene nanobelt having half-metal characteristics is obtained. According to the technical scheme of the invention, the spin characteristics of the zigzag germanene nanobelt are regulated without the outfield effect of any external electric field or any exchange field, and the germanene nanobelt having half-metal characteristics is obtained only through adjusting the distance between dopant atoms. Therefore, a germanene nanobelt-based spintronic device is 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 Applications(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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