Beyond Charge Transport: Spin and Heat Currents in 2D Crystals

超越电荷传输：二维晶体中的自旋流和热流

• 批准号: 1916265
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1916265
• 关键词: Beyond; Charge; Transport; Spin; Heat

Heat engines provide more than 90% of the energy used in the world, producing the electricity generated by power plants and powering transportation. Thermoelectrics is based on the same thermodynamic principles that govern heat engines, except it uses electrons as its working fluid, rather than steam or air. It is a field that lies at the interface of thermal science and electronics, and has drastically progressed thanks to nanotechnology. Furthermore, spin electronics (spintronics) is an emergent field that exploits the intrinsic angular momentum of the electron, besides its charge traditionally used in modern electronics. It lies at an interface of the traditional fields of magnetism and electronics and becomes accessible only via nanotechnology. Spin as an additional degree of freedom would provide enhanced functionality to electronics by enabling re-programmable circuits and low power 'green' electronics, thermoelectric technology is currently used in generators and coolers, while graphene is currently explored for its huge application potential. In this project we will explore spintronics (Nobel Prize in Physics 2007) and thermoelectrics in devices based on the remarkable one-atom-thick material graphene, the first truly two-dimensional material discovered in Manchester (Nobel Prize in Physics 2010). In particular, we will study '2D sandwiches', heterostructures where 2D materials interact purely via van der Waals forces, either to enhance their electronic properties or to introduce novel effects. The successful applicant will have access to state-of-the-art cleanroom facilities and instrumentation.

热发动机提供了世界上使用的90％以上的能源，从而产生由发电厂产生的电力和动力运输。热电学基于控制热发动机的同一热力学原理，除了它将电子用作其工作流体，而不是蒸汽或空气。这是一个位于热科学和电子设备界面的领域，并且由于纳米技术的发展幅度很大。此外，自旋电子（Spintronics）是一个新兴的领域，它利用了电子的内在角度动量，除了其传统上用于现代电子产品的电荷。它位于传统的磁和电子领域的界面，仅通过纳米技术才能访问。 旋转作为额外的自由度将通过启用可重新编程的电路和低功率“绿色”电子设备提供增强的电子功能，热电技术目前用于发电机和冷却器中，而目前探索了石墨烯的巨大应用程序潜力。在这个项目中，我们将根据具有非凡的单原子材料石墨烯，这是曼彻斯特发现的首款真正的两维材料（诺贝尔物理学奖），我们将探索设备中的Spintronics（诺贝尔物理学奖）和设备中的热电学。特别是，我们将研究“ 2D三明治”，即2D材料纯粹通过范德华力相互作用的异质结构，以增强其电子特性或引入新的效果。成功的申请人将可以使用最先进的洁净室设施和仪器。

项目成果

Enhanced Spin Injection in Molecularly Functionalized Graphene via Ultrathin Oxide Barriers

• DOI: 10.1103/physrevapplied.15.054018
• 发表时间: 2021-04
• 期刊: Physical Review Applied
• 影响因子: 4.6
• 作者: J. Toscano-Figueroa;N. Natera-Cordero;D. Bandurin;C. R. Anderson;V. Guarochico-Moreira;I. Grigorieva;I. J. Vera-Marun

Tunable Spin Injection in High-Quality Graphene with One-Dimensional Contacts.

• DOI: 10.1021/acs.nanolett.1c03625
• 发表时间: 2022-02-09
• 期刊: Nano letters
• 影响因子: 10.8
• 作者: Guarochico-Moreira VH;Sambricio JL;Omari K;Anderson CR;Bandurin DA;Toscano-Figueroa JC;Natera-Cordero N;Watanabe K;Taniguchi T;Grigorieva IV;Vera-Marun IJ
• 通讯作者: Vera-Marun IJ