Fabrication, charge and spin ordering, magnetoresistance, and polaron effects in nano-size and single crystals of novel transition metal perovskite oxides

新型过渡金属钙钛矿氧化物纳米尺寸和单晶的制造、电荷和自旋排序、磁阻和极化子效应

• 批准号: DP0345012
• 负责人: Prof Xiaolin Wang
• 金额: $ 17.08万
• 依托单位: University of Wollongong
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0345012
• 关键词: Fabrication; charge; spin; ordering; magnetoresistance

The aim of the project is to synthesize a systematic series of novel colossal magnetoresistance manganese, cobalt and iron based transition metal perovskite oxides in the forms of nano-structures, nano-structured composites and single crystals using advanced nano-technology and crystal growth techniques. Extensive fundamental studies on magnetoresistance, spin and change ordering, and nano-scale behaviors will be carried out by neutron diffraction, synchrotron radiation, transport and magnetic measurements over a wide temperature range and magnetic fields. The outcomes of this project are likely to lead to a better undertanding of the colossal magnetoresistance mechanisms, the discovery of fascinating new physical phenomena and suitable magnetoresistance materials for superior magnetic recording, sensing and switch devices

该项目的目的是利用先进的纳米技术和晶体生长技术，以纳米结构、纳米结构复合材料和单晶的形式，合成一系列系统的新型巨磁阻锰、钴和铁基过渡金属钙钛矿氧化物。通过中子衍射、同步辐射、输运和宽温度范围和磁场的磁测量，将对磁电阻、自旋和变化有序以及纳米尺度行为进行广泛的基础研究。该项目的结果可能会导致更好地理解巨大的磁阻机制，发现迷人的新物理现象和合适的磁阻材料，用于优越的磁记录，传感和开关设备