NSF-EC Cooperative Activity in Materials Research: Mechanical Measurement of Spin Transport in Nanomaterials

NSF-EC 材料研究合作活动：纳米材料中自旋输运的机械测量

• 批准号: 0346707
• 负责人: Pritiraj Mohanty
• 金额: $ 30万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-04-01 至 2007-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0346707&HistoricalAwards=false
• 关键词: NSF; EC; Cooperative; Activity; Materials

This collaborative project focuses on detection and control of spin transport in nanoscale magnetic heterostructures, which have recently been at the heart of two distinct areas, spintronics and quantum-information processing. The main goal of the project is to develop advanced techniques for the detection of spin transfer by the resulting nanomechanical torque. Conversely, spin current and spin population can be created by the application of external torque. This experimental effort will build upon the recent progress in ultra-sensitive force detection methods in nano-electro-mechanical systems (NEMS) and advanced techniques for fabrication of multi-layered, suspended hybrid nanostructures with magnetic and non-magnetic materials. Complementary experiments will be carried out in the nanoscale research laboratory at Boston University and the high-field, low-temperature measurement facilities in Centre de Recherches sur les Tres Basses Temperatures (CRTBT) at the Centre Nationale de la Recherche Scientific (CNRS), Grenoble, France. Both faculty and graduate students will participate in long-term exchanges between these institutions. The students will gain valuable exposure from the international collaboration on these joint experiments. This NSF project is co-funded by the Division of Materials Research and International Office (Western Europe) as a Cooperative Activity in Materials Research between the NSF and the European Community. The project will be carried out in collaboration with CNRS, Grenoble, France.This is a collaborative research project between Boston University and the Centre Nationale de la Recherche Scientific (CNRS), Grenoble, France. This project focuses on a novel approach of detecting and controlling electron spin by nanomechanical torque. Manipulation of electron spin by torque avoids the ubiquitous problem in spintronics, namely the extraction of spin information from a charge current. This project will have joint experiments in both Boston University and CNRS to take advantage of the complementary expertise and facilities. Structure fabrication and measurements will be carried out in the nanoscale research laboratory at Boston University, and characterization measurements will be done at the high-field, low-temperature measurement facilities in Centre de Recherches sur les Tres Basses Temperatures (CRTBT) at the CNRS, Grenoble, France. Both faculty and graduate students will participate in long-term exchanges between these institutions. The students will gain valuable exposure from the close collaboration with the international researchers. This NSF project is co-funded by the Division of Materials Research and International Office (Western Europe) as a Cooperative Activity in Materials Research between the NSF and the European Community. The project will be carried out in collaboration with CNRS, Grenoble, France.

这个合作项目的重点是检测和控制纳米尺度磁性异质结构中的自旋输运，这是最近两个不同领域的核心，自旋电子学和量子信息处理。该项目的主要目标是开发先进的技术，通过产生的纳米机械扭矩来检测自旋转移。相反，外加扭矩可以产生自旋电流和自旋布居。这项实验工作将建立在纳米机电系统(NEMS)中超灵敏测力方法的最新进展以及利用磁性和非磁性材料制备多层悬浮混合纳米结构的先进技术的基础上。将在波士顿大学的纳米研究实验室和法国格勒诺布尔国家科学研究中心的高场低温测量设施中进行补充实验。教师和研究生都将参加这些机构之间的长期交流。学生们将从这些联合实验的国际合作中获得宝贵的机会。该NSF项目由材料研究司和国际办公室(西欧)共同资助，作为NSF和欧洲共同体在材料研究方面的合作活动。该项目将与法国格勒诺布尔的国家科学研究中心合作进行，这是波士顿大学和法国格勒诺布尔国家科学研究中心(CNRS)之间的一个合作研究项目。本项目主要研究一种利用纳米机械扭矩检测和控制电子自旋的新方法。通过扭矩操纵电子自旋避免了自旋电子学中普遍存在的问题，即从电荷电流中提取自旋信息。该项目将在波士顿大学和CNRS进行联合实验，以利用互补的专业知识和设施。结构制造和测量将在波士顿大学的纳米研究实验室进行，表征测量将在法国格勒诺布尔国家科学研究中心的高场低温测量设施进行。教师和研究生都将参加这些机构之间的长期交流。学生们将从与国际研究人员的密切合作中获得宝贵的接触。该NSF项目由材料研究司和国际办公室(西欧)共同资助，作为NSF和欧洲共同体在材料研究方面的合作活动。该项目将与法国格勒诺布尔的国家科学研究中心合作开展。