在自组装的-纳米晶超级网格中旋转依赖道挖掘
C T Black1, C B Murray, R L Sandstrom
1IBM Research Division, T. J. Watson Research Center, Yorktown Heights, NY 10598, USA. ctblack@us.ibm.com
Science (New York, N.Y.)
|November 10, 2000
概括
纳米晶阵列显示了自旋依赖的电子传输. 它们的磁阻在低温下达到10%,在高温下受到旋转转折散射的限制.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学是一种材料科学.
- 纳米技术 纳米技术
背景情况:
- 自组装的纳米结构提供了独特的电子特性.
- 纳米晶体对于自旋电子应用具有前景.
研究的目的:
- 为了研究在纳米晶阵列中自旋依赖的电子运输.
- 为了描述这些设备的磁电阻特性.
主要方法:
- 制造10纳米纳米晶的周期阵列.
- 测量电流-电压特征.
- 在低温下 (20K以下) 分析磁电阻.
主要成果:
- 设备显示自旋依赖的电子传输.
- 电流电压数据与单电子道模型保持一致.
- 在低温下,磁阻比接近10%.
- 旋转转折散射被确定为影响磁阻的关键因素.
结论:
- 自组装的纳米晶阵列是可行的自旋电子设备.
- 了解运输机制和散射对于优化性能至关重要.
- 设备的性能取决于温度和偏移电压.
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