A Perspective on the Application of Spatially Resolved ARPES for 2D Materials.

A Perspective on the Application of Spatially Resolved ARPES for 2D Materials.
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DOI:
10.3390/nano8050284
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发表时间:
2018-04-27
期刊:
Nanomaterials (Basel, Switzerland)
影响因子:
--
通讯作者:
Fox NA
Fox NA
中科院分区:
其他
文献类型:
--
作者:
Cattelan M;Fox NA

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本文介绍了空间和角度分辨光发射光谱(ARPES)在二维材料研究中的应用。ARPES允许直接测量材料的电子能带结构,从而对其电子特性产生非常有用的见解。将这种技术应用于二维材料的可能性是至关重要的,因为这些超薄层被认为是未来电子、光子和自旋电子器件的基础。在这篇综述中,概述了空间本地化ARPES的技术方面,并描述了实验室和同步加速器设备的最先进设置。这种技术对样品的横向尺寸很敏感。因此,本文对二维材料的制备方法进行了探讨。通过ARPES获得的一些最有趣的结果分为三个部分,包括:石墨烯,过渡金属二硫族化合物(TMDCs)和二维异质结构。石墨烯在ARPES研究中发挥了关键作用,因为它激发了这种技术与其他二维材料的使用。TMDCs具有独特的输运、光学和自旋性质。最后,异质结构部分强调了二维材料结构的未来研究方向。
In this paper, a perspective on the application of Spatially- and Angle-Resolved PhotoEmission Spectroscopy (ARPES) for the study of two-dimensional (2D) materials is presented. ARPES allows the direct measurement of the electronic band structure of materials generating extremely useful insights into their electronic properties. The possibility to apply this technique to 2D materials is of paramount importance because these ultrathin layers are considered fundamental for future electronic, photonic and spintronic devices. In this review an overview of the technical aspects of spatially localized ARPES is given along with a description of the most advanced setups for laboratory and synchrotron-based equipment. This technique is sensitive to the lateral dimensions of the sample. Therefore, a discussion on the preparation methods of 2D material is presented. Some of the most interesting results obtained by ARPES are reported in three sections including: graphene, transition metal dichalcogenides (TMDCs) and 2D heterostructures. Graphene has played a key role in ARPES studies because it inspired the use of this technique with other 2D materials. TMDCs are presented for their peculiar transport, optical and spin properties. Finally, the section featuring heterostructures highlights a future direction for research into 2D material structures.
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