实现 skyrmion 轮班记录器的实现
Le Zhao1, Chensong Hua2, Chengkun Song1
1State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China; Frontier Science Center for Quantum Information, Tsinghua University, Beijing 100084, China.
Science bulletin
|July 3, 2024
概括
研究人员开发了新的磁性赛道记忆装置. 这些设备通过在室温下精确控制skyrmion运动,实现高效,低功耗的数据存储和处理.
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:
- 对数据存储的日益增长的需求需要先进的非挥发性,低功耗的内存技术.
- 磁性 skyrmions,一种拓单元,提供了作为信息载体的潜力,以实现高效的处理.
- 斯基尔米奥尼克设备的实验实现落后于理论进展.
研究的目的:
- 为了应对多功能 skyrmionic 设备制造的实验挑战.
- 为了证明磁性 skyrmions 的受控形成和操纵,用于数据存储应用.
- 介绍一款采用 skyrmionic 位的原型变速寄存器.
主要方法:
- 模拟Si/SiO2基板,具有形表面地形和痕.
- 制造Ta/CoFeB/MgO多层薄膜,以创建一个非平面的能源景观.
- 开发一维赛道设备,用于确定性斯基米安移动.
主要成果:
- 实现了六角形和正方形 skyrmion 格子的形成.
- 在室温下显示了 skyrmions 在隙之间长距离的确定性转移.
- 介绍了一种原型转移寄存器,能够生成和转移复杂的 skyrmionic 数据字符串.
结论:
- 设计的非平面能量景观促进了受控的 skyrmion 格子形成.
- 在赛道设备中,决定性的 skyrmion 转移在室温下是可行的.
- 这些发现为转变型斯基米奥尼克内存,逻辑和内存计算设备铺平了道路.
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