来自氧化物异构结构中自旋冰的新兴场的近距离效应
Mizuki Ohno1, Takahiro C Fujita1, Masashi Kawasaki1,2
1Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan.
Science advances
|March 13, 2024
概括
在接口处研究绝缘量子磁铁揭示了新出现的磁传输现象. 这项研究将基础科学与潜在的量子技术应用联系起来.
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
- 量子磁力 量子磁力 量子磁力
背景情况:
- 量子磁体中的几何挫折导致了异国情调的旋转结构和新兴领域.
- 绝缘量子磁铁对电气检测磁现象具有挑战性.
- 像Dy$_{2}$Ti$_{2}$O$_{7}$这样的旋冰材料是具有独特性质的原型量子磁铁.
研究的目的:
- 探测隔热量子磁铁Dy$_{2}$Ti$_{2}$O$_{7}$在异质接口上的磁性转换.
- 为了研究在隔热量子磁铁中出现的磁传输现象.
- 探索量子磁铁在电子应用中的潜力.
主要方法:
- 使用表轴技术,在Dy$_{2}$Ti$_{2}$O$_{7}$和Bi$_{2}$Rh$_{2}$O$_{7}$之间创建一个异面接口.
- 测量取决于角度的纵向电阻,以确定磁相边界.
- 分析异常的霍尔电阻,以了解新出现的场态.
主要成果:
- 纵向电阻显示了自旋冰的磁相边界的峰值,这归因于域边界散射.
- 异常的霍尔电阻表现出与Dy$_{2}$Ti$_{2}$O$_{7}$中的磁过渡相关的信号变化.
- 在异常的霍尔电阻中观察到的标志变化表明出现的磁场的反转.
结论:
- 这项研究成功地证明了在绝缘量子磁铁的接口上出现的磁传输现象.
- 结果将量子磁体的基础研究与潜在的电子设备应用联系起来.
- 这项工作通过利用隔热量子磁铁为量子技术的创新铺平了道路.
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