Materials and multilayers/nanowires for spintronics/superconducting applications

用于自旋电子学/超导应用的材料和多层/纳米线

• 批准号: 36319-2011
• 负责人: Jung, Jan
• 金额: $ 2.55万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=568717
• 关键词: Materials; multilayers; nanowires; spintronics; superconducting

This research proposal is focused on the investigation of materials chemistry and mesoscopic physical properties of functional electronic materials: ultra-thin magnetic films and superconducting nanobridges/nanowires for potential applications in multilayer devices. The emphasis is on the synthesis of these materials and studies of their electronic properties. This application consists of two parts that describe the proposed studies of manganite based ultra-thin film tunnel junctions and superconducting nanobridges-nanowires. The first part deals with the synthesis of the magnetic manganese oxide-based materials (manganites) and the ultra-thin films/multilayers of these compounds. The main goals of the proposed research are: (a) to find the correlation between the lattice strain and the anisotropic magneto-electric properties (such as the anisotropic magneto-resistance (AMR) and the anomalous Hall resistivity (AHR)) of ultra-thin films of these materials; (b) to synthesize ultra-thin film multilayer tunnel junctions and investigate their tunneling anisotropic magneto-resistance (TAMR), including its response to the applied strain. The strain-modulated TAMR junctions could have potential applications in switching or random access memory devices. The second part of this proposal deals with the synthesis of superconducting nanobridge/nanowire arrays and the analysis of their properties, such as the relationship between supercurrents and phase slip events. These studies are important from the point of view of the fundamental understanding of the confinement of electrons in quasi-1D structures, as well as from the viewpoint of potential applications in electronic/photonic detectors/devices.

该研究建议的重点是对功能电子材料的材料化学和介观物理性质的研究：用于在多层设备中潜在应用的超薄磁性膜和超导纳米旋转膜/纳米线。重点是这些材料的合成及其电子特性的研究。该应用包括两个部分，描述了基于锰矿的超薄膜隧道连接和超导纳米啤酒纳米线的拟议研究。 第一部分涉及这些化合物的磁性锰基材料（锰矿）和超薄膜/多层次的合成。拟议的研究的主要目标是：（a）找到晶格菌株与各向异性磁电特性（例如各向异性磁耐药性（AMR）与这些材料的超金融膜的异常霍尔电阻率（AMR）的相关性（AMR）； （b）合成超薄薄膜多层隧道连接处并研究其隧道各向异性磁耐药（TAMR），包括其对施加菌株的响应。应变调节的TAMR连接可能在开关或随机访问存储器设备中具有潜在的应用。 该提案的第二部分涉及超导纳米布里奇/纳米线阵列的综合及其性质的分析，例如超电流与相位滑移事件之间的关系。从对电子/光子检测器/设备中潜在应用的观点，从对电子中电子的基本了解以及对电子限制的基本了解的角度来看，这些研究很重要。