Acquisition of a Pulsed Laser Deposition System and an X-rayDiffractometer

[504213] COHN， JOSHUA这台高真空脉冲激光沉积（PLD）设备将用于研究显示巨磁阻的类钙钛矿薄膜的输运和磁性能。磁性氧化物中自旋波色散的研究将采用磁性和超导氧化膜组成的层状结构进行。该奖项还支持获得用于标本非原位结构表征的x射线衍射仪。讨论了利用脉冲激光对微结构进行图像化，作为开发完整材料工程设施的一种有前途的手段。提出的研究涉及材料物理问题，直接关系到磁信息存储和微波技术的潜在应用。物理性质研究将包括输运和隧道现象、磁化率、铁磁共振和微波透射的测量。该仪器将使我们能够满足我们的教育目标，培养博士生和本科生的前沿研究领域涉及先进材料，他们的表征和加工。通过使用仪器开发的知识和技能将提高他们在未来技术市场的前景。

9504213 COHN, JOSHUA This a high-vacuum, pulsed lase deposition (PLD) apparatus will be used in the development of a vigorous basic research program investigating the transport and magnetic properties of perovskite-like films displaying giant magnetoresistance. The study of spin wave dispersion in magnetic oxides will be carried out using layered structures composed of magnetic and superconducting oxide films. This award also supports the acquisition of an x-ray diffractometer for ex situ structural characterization of specimens. The use of the pulsed laser for patterning microstructures in discussed as a promising means of developing a complete materials engineering facility. The proposed research involves materials physics issues with direct bearing on potential applications in magnetic information storage and microwave technologies. Physical properties investigations will included measurements of transport and tunneling phenomena, magnetic susceptibility, ferromagnetic resonance and microwave transmission. This instrumentation will enable us to meet our educational goals of training Ph.D. candidates and undergraduate students in frontier areas of research involving advanced materials, their characterization, and processing. The knowledge and skills developed through use of the instrumentation will enhance their prospects in tomorrow's technological marketplace.