Acquisition of a Variable-Temperature Scanning Probe Microscope System for Materials Research and Education

该奖项由仪器材料研究项目授予佛罗里达州立大学，以表彰其购买变温扫描探针显微镜系统。该仪器不仅将用于纳米尺度的微结构研究，而且还将用于介观尺度的微结构研究，特别是在高样品温度下，应用于薄膜半导体、半结晶聚合物、高温超导体以及超塑性和沉淀硬化材料的纳米结构。研究将原子力显微镜(AFM)的温度范围扩展到1500 K以上的方法，方法是在热敏探头组件上添加热电偶传感器，并修改样品安装配置以最大限度地减少加热体积。这一极大的温度范围将为FAMU-FSU工程学院的科学家提供机会，原位观察和研究超导涡旋结构、晶体重定向、织构演化、内应力发展和相变等现象。从SPM获得的信息可以用来补充用其他技术获得的数据，从而扩展关于变形和相变的微观机制的知识。表面原子排列将用于在块状材料中获得织构，即使在高温下也是如此。该仪器将用于本科生和研究生水平的教学，为学生提供使用处于材料研究前沿的真正最先进的仪器的机会。%佛罗里达州立大学仪器材料研究计划授予佛罗里达州立大学的这个奖项是为了获得可变温度扫描探针显微镜系统。相对较新的扫描探针显微镜领域为详细研究动态表面的原子尺度提供了大量的机会。这项技术背后的基本原理是对尖端不到人类头发直径千分之一的针头进行精确的电子操作。只需改变针头的材料，仪器就可以转换为对磁场、温度、电子密度甚至化学反应的差异做出反应-所有这些都是在原子尺度上的。该仪器能够对绝对零度以上25度至1500度以上的样品进行测量。这一非凡的温度范围将使用户能够研究广泛的表面现象和材料特性，包括高温超导体、形状记忆金属合金、高纯半导体和新型聚合物材料。该仪器将由佛罗里达州立大学的联合管理项目FAMU-FSU工程学院和历史上授予博士学位的黑人大学佛罗里达农工大学维护。大约50%的工科学生是少数族裔，超过25%是女性。该仪器将用于本科生和研究生的教学，为学生提供机会使用处于材料研究前沿的真正最先进的仪器。*

This award from the Instrumentation materials Research program to Florida State University is for the acquisition of a variable-temperature scanning probe microscope system. The instrument will be used for studying microstructures not only at the nano-scale but also on the meso-scale, particularly at high sample temperatures, with applications in thin film semiconductors, semi-crystalline polymers, high-temperature superconductors, and nanostructures of superplastic and precipitation hardening materials. Methods to extend the temperature range capability of atomic force microscopy (AFM) to temperatures in excess of 1500 K will be investigated by the addition of thermocouple sensors on the heat-sensitive probe assemblies, and modification of the sample mounting configuration to minimize the volume being heated. This extremely large temperature range will provide scientists from FAMU-FSU College of Engineering with the opportunity to observe and investigate in-situ such phenomena as superconductor vortex structures, crystal reorientation, texture evolution, internal stress development and phase transformation. The information obtained from SPM may be used to complement the data acquired with other techniques, and thereby expand knowledge of the micromechanisms of deformation and phase transformation. The surface atomic arrangement will be used to obtain texture in bulk materials, even at high temperatures. The instrument will be used for instruction at both the undergraduate and graduate level, providing the opportunity for students to work with a truly state-of-the-art instrument at the forefront of materials research.%%%This award from the Instrumentation materials Research program to Florida State University is for the acquisition of a variable-temperature scanning probe microscope system. The relatively new field of scanning probe microscopy has opened up an enormous number of opportunities for detailed atomic-scale study of dynamic surfaces. The fundamental principle behind the technique is the precision electrical manipulation of a needle probe whose tip is less than one-thousandth the diameter of a human hair. Simply by changing the material of the needle probe, the instrument can be converted to respond to differences in magnetic field, temperature, electron density and even chemical reactivity- all on the atomic scale. This instrument is capable of performing measurements on samples over the temperature range of 25 degrees above absolute zero, to over 1500 degrees. This remarkable temperature range will enable users to investigate a wide range of surface phenomena and material properties, including high temperature superconductors, shape-memory metallic alloys, high-purity semiconductors, and novel types of polymer materials. The instrument will be maintained by the FAMU-FSU College of Engineering, a jointly managed program of Florida State University, and Florida A&M University, a Doctoral-granting historically black university. Approximately 50% of the engineering students are minorities, and over 25% are women. The instrument will be used for instruction at both the undergraduate and graduate level, providing the opportunity for students to work with a truly state-of-the-art instrument at the forefront of materials research.***