根据灵活的Pt/YIG异质连接的接口效应大大提高了基于铁磁的可调整幅度
Yanan Zhao1, Yufei Yao1, Yafang Chai1
1State Key Laboratory for Manufacturing Systems Engineering, Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
ACS applied materials & interfaces
|February 13, 2024
概括
灵活的Pt/YIG异质连接表现出增强的应力诱导的磁性调性. 柔性磁氧化物的这一突破为低功率自旋逻辑设备提供了新的可能性.
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
- 这就是Spintronics.
背景情况:
- 灵活的量子旋转电子设备提供低功耗和非接触式传感.
- 铁磁绝缘体,如伊铁石榴石 (YIG),由于具有较小的磁强系数,其应力效应有限.
- 在灵活的设备中实现大磁调整幅度仍然是一个挑战.
研究的目的:
- 开发具有增强应力敏感磁性质的灵活Pt/YIG异质连接.
- 为了研究 (Pt) 层厚度对磁性近距离效应的影响.
- 探索这些异质连接在旋转逻辑装置的灵活应力敏感磁氧体中的潜力.
主要方法:
- 使用双腔磁铁子喷射制造大型,灵活的Pt/YIG异质连接.
- 磁性属性的表征,包括软磁性和曲疲劳.
- 分析磁性近距离效应及其与Pt层厚度的相关性.
主要成果:
- Pt/YIG异质连接表现出典型的软磁性和良好的曲疲劳.
- 3纳米的Pt层诱导了显著的磁近距离效应,与Cu/YIG相比,铁磁共振场减少了70 Oe.
- 由于敏感的接口效应,在柔性曲应力下实现了110 Oe的宽调整幅度.
结论:
- 灵活的Pt/YIG异质连接表现出增强的,应力诱导的磁性调性.
- 磁性近距离效应受到Pt厚度的影响,对设备性能至关重要.
- 这些发现为先进的灵活应力敏感磁氧化物在自旋电子应用中铺平了道路.
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