一个一维的状物质的链状状态
A Grigorenko1, S Bending, T Tamegai
1Department of Physics, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
Nature
|December 14, 2001
概括
研究人员通过应用倾斜的磁场在异质超导体中发现了状物质的新状态. 这种相互作用允许对子子网进行操纵,从而有可能实现新的流量逻辑设备和应用.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学 材料科学 材料科学
- 超导电性 超导电性 超导电性
背景情况:
- 第二种类型的超导体表现出流量量子化 vortices 形成格子结构.
- 不同类型的高温超导体显示不同的状网格 (饼和约瑟夫森),取决于磁场的方向.
- 之前在平面内场下的Bi2Sr2CaCu2O8+delta中观察到不可逆转的磁化抑制是无法解释的.
研究的目的:
- 为了研究饼和约瑟夫森旋格子在倾斜磁场下的异型超导体中的相互作用.
- 阐明新的状物质状态的形成及其对状物质操纵的影响.
- 为了解释Bi2Sr2CaCu2O8+delta中不可逆转的磁化抑制现象.
主要方法:
- 在Bi2Sr2CaCu2O8+delta.单晶上应用倾斜磁场.
- 观测和分析状网相互作用和由此产生的物质状态.
- 观察到的现象与磁性属性的相关性.
主要成果:
- 一个新的状物质状态被形成,在一个倾斜的磁场下,饼状物质堆与约瑟夫森状物质交叉.
- 约瑟夫森旋子网格被证明能够操纵饼旋子网格.
- 这种相互作用解释了Bi2Sr2CaCu2O8+delta.中以前神秘的不可逆转磁化抑制.
结论:
- 异型超导体中子子网之间的相互作用导致了可控制的物质的新状态.
- 这种控制为流量逻辑设备,流量传感器和放大器中的高级应用提供了潜力.
- 这些发现提供了对复杂超导系统中旋行为的基本理解.
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