Exchange Bias: Spin Structure, Interface Disorder and Coupling Mechanisms

这个个人研究者奖是颁给一位致力于“交换偏见”现象的综合研究项目的资深教授。该项目包括最先进的生长，结构，化学和磁性表征，以及使用广泛技术的物理性质测量。目的是加深对两种不同磁性材料相互接触时发生的现象的理解。交换偏置构成了许多应用的基础，这些应用使用所谓的“自旋阀”技术用于磁存储和传感器。虽然这种现象在许多应用中都有使用，但缺乏基本的理解。本研究将解决的问题包括结构和磁性参数的影响，以及界面参数（如粗糙度和相互扩散）的影响。通过彻底的实验攻击，应该对这一现象有更好的理解。这将对相关技术产生直接影响。参与该项目的学生和博士后将获得技术和基础知识和技能，这些知识和技能可以引导他们在学术界、工业界或政府实验室从事基础或应用研究。这项个人研究者奖是颁给一位资深教授的，他的研究项目致力于研究一种叫做“交换偏倚”的现象，这种现象发生在两种不同的磁性材料相互接触时。这种现象出现在各种材料结构中（即薄膜，小颗粒等），并且是许多传感器应用中的重要成分。虽然这种现象被用于一个550亿美元的行业，但人们对其起源却知之甚少。沿着这条路线进行的基础研究可能对开发新型传感器和改进磁存储产生重要影响。在这项工作中，研究生和博士后是必不可少的合作者。他们不仅有助于促进我们对这一重要现象的理解，而且还将获得广泛的技术技能，无论他们对学术界还是传感器和存储行业的职业感兴趣，这些技能都将为他们服务。这是一个理想的研究领域，在这个领域，基础研究可以对国家至关重要的工业和技术产生直接的、相关的影响。

This individual investigator award is to a senior professor for a project dedicated to a comprehensive study of the phenomenon of "exchange bias." The project consists of state of the art growth, structural, chemical and magnetic characterization, and measurement of physical properties using a broad range of techniques. The aim is to develop an increased understanding of the phenomenon that occurs when two dissimilar magnetic materials are placed in contact with each other. The exchange bias forms the basis for a number of applications that use the so called "spin valve" technology for magnetic storage and sensors. Although the phenomenon is used in many applications, a basic understanding is lacking. Issues that will be addressed by this research include, the influence of structural and magnetic parameters, and the effect of interfacial parameters such as roughness and interdiffusion. Through a thorough experimental attack, a better understanding of the phenomenon should be obtained. This will have a direct impact on related technologies. Students and postdocs working on this project will acquire technical and fundamental knowledge and skills that can be lead to careers in basic or applied research in academia, industry, or government laboratories.%%%This individual investigator award is to a senior professor for a project dedicated to the study of a phenomenon known as "exchange bias", which occurs when two dissimilar magnetic materials are in contact with each other. This phenomenon appears in a variety of material configurations (i.e. thin films, small particles, etc.) and is an important ingredient in a number of sensor applications. Although the phenomenon is used in a 55 billion dollars industry, there is little basic understanding of its origin. Basic research along these lines may have an important effect on the development of novel sensors and improved magnetic storage. Graduate students and postdoctoral fellows are essential collaborators in this work. They will not only help in advancing our understanding of this important phenomenon, but will also acquire a broad range of technical skills that will serve them whether they are interested in careers in academia or the sensor and storage industries. This is an ideal area of research in which basic research can have a direct, relevant impact on industries and technology of crucial importance to the nation.