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

采购脉冲激光沉积系统和 X 射线衍射仪

• 批准号: 9504213
• 负责人: Joshua Cohn
• 金额: $ 13万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-15 至 1996-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9504213&HistoricalAwards=false
• 关键词: Acquisition; Pulsed; Laser; Deposition; System

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.

9504213 COHN，约书亚 这是一个高真空，脉冲激光沉积（PLD）设备将用于一个充满活力的基础研究计划的发展，调查显示巨磁电阻类钙钛矿薄膜的运输和磁性。 磁性氧化物中自旋波色散的研究将使用由磁性和超导氧化物膜组成的层状结构进行。 该奖项还支持获得用于样品非原位结构表征的X射线衍射仪。 讨论了使用脉冲激光对微结构进行图案化是开发完整材料工程设施的一种有前途的手段。 该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。 物理性质的调查将包括运输和隧道现象，磁化率，铁磁共振和微波传输的测量。 这种仪器将使我们能够满足我们培养博士的教育目标。候选人和本科生在前沿领域的研究，涉及先进材料，其表征和处理。 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。