紫阵列作为自旋电子设备
Woo Jong Cho1, Yeonchoo Cho, Seung Kyu Min
1Department of Chemistry, Pohang University of Science and Technology, San 31 Pohang, Republic of Korea.
Journal of the American Chemical Society
|May 27, 2011
概括
我们预测,甲阵列表现出半金属性质,非常适合用于自旋电子设备. 这种有机金属框架为先进的灵活电子提供了可合成的途径.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术 纳米技术
背景情况:
- 对于未来的信息技术而言,Spintronic设备至关重要.
- 有机半金属提供灵活性和长的自旋连贯长度.
- 半金属性质允许只有一个旋转方向通过设备.
研究的目的:
- 预测一维无限紫阵列 (Cr-PA(∞)) 的半金属行为.
- 为了研究有机金属框架对于自旋电子应用的潜力.
- 为旋转过器提出一个可合成的框架.
主要方法:
- 密度函数理论 (DFT) 的计算被用来预测材料属性.
- 使用不平衡的绿色函数技术来计算电子传输.
- 对Cr-PA进行了旋转对齐和带间隔分析.
主要成果:
- Cr-PA(∞) 在平行旋转对齐中表现出半金属的行为.
- 观察到主要自旋电子的带间隙为0.30 eV,小自旋电子没有间隙.
- 发现旋转过能力出现在二维Cr-PA中.
结论:
- 紫阵列为设计旋转波器提供了一个有前途的有机金属框架.
- 该材料的特性源于的高旋转状态,导致旋转不对称.
- 基于氨酸的自旋电子设备为未来的应用提供了实用和可合成的方法.
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