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Research Initiation Award Grant: A Monte Carlo and SQUID Magnetometer Study of Molecular Spintronics Devices

研究启动奖：分子自旋电子器件的蒙特卡罗和 SQUID 磁力计研究

基本信息

批准号：
1238802
负责人：
Pawan Tyagi
金额：
$ 20万
依托单位：
University of the District of Columbia
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2012
资助国家：
美国
起止时间：
2012-09-01 至 2016-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1238802&HistoricalAwards=false
关键词：
Research Initiation Award Grant Monte

项目摘要

Molecular spin devices (MSDs) are promising candidates for revolutionizing computer logic and memory. MSDs aim to harness the controllable transport and magnetic properties of molecular device elements which can be synthetically mass produced. However, there have been insignificant efforts to predict or measure the effect of molecular coupling on the performance of a MSD. In order to produce insights about the role of molecular device elements on the magnetic properties of the MSDs, the Research Initiation Award project entitled - A Monte Carlo and SQUID Magnetometer Study of Molecular Spintronics Devices - has two goals: a) To perform Monte Carlo Simulations (MCS) to theoretically investigate the interplay between the magnetic molecules and ferromagnetic electrodes responsible for bringing about the desired characteristics within MSDs. The project will study the effects of Heisenberg exchange coupling between magnetic molecules and ferromagnetic electrodes of a MSD; study the effect of dimensionality, geometry on the molecule induced magnetic coupling, and improvise algorithms for Monte Carlo Simulations near phase change points in a MSD. b) To experimentally study the effect of molecular device elements on the magnetic properties of the MSDs. The research will focus on magnetic tunnel junction (MTJ) based MSDs, by conducting a SQUID magnetometer based magnetization study before and after transforming a variety of MTJ test beds into MSDs by utilizing molecular device elements.

分子自旋器件（MSD）是革新计算机逻辑和存储器的有希望的候选者。MSD旨在利用可合成大规模生产的分子器件元件的可控传输和磁性。然而，在预测或测量分子偶联对MSD性能的影响方面，已经做出了微不足道的努力。为了深入了解分子器件元件对MSD磁特性的作用，题为“分子自旋电子器件的蒙特卡罗和SQUID磁强计研究”的研究启动奖项目有两个目标：a）进行蒙特卡罗模拟（MCS）从理论上研究磁性分子和铁磁电极之间的相互作用，在MSD中。该项目将研究磁性分子和MSD铁磁电极之间的海森堡交换耦合的影响;研究维度，几何形状对分子诱导的磁耦合的影响，并改进MSD相变点附近的Monte Carlo模拟算法。B）实验研究分子器件元件对MSD磁性能的影响。该研究将侧重于基于磁性隧道结（MTJ）的MSD，通过利用分子器件元件将各种MTJ测试床转换为MSD之前和之后进行基于SQUID磁力计的磁化研究。