论文标题
ND-SN人造蜂窝晶格中的局部自旋冰序诱导的平面大厅效应
Local spin ice order induced planar Hall effect in Nd-Sn artificial honeycomb lattice
论文作者
论文摘要
已知由于旋转手性而导致的异国情调的大厅效应现象，几何沮丧的材料（例如自旋冰或kagome晶格）。我们使用霍尔探针和偏振中子反射率测量值探索了人造蜂窝冰冰中的霍尔效应机理。在一个有趣的观察中，检测到$ 20 $ 20 K的霍尔信号的强大增强。效果归因于平面霍尔效应，这是由于在低场应用中旋转冰状态下的磁矩配置。 In the antiferromagnetic state of neodymium at low temperature, applied field induced coupling between atomic Nd moments and conduction electrons in underlying lattice causes distinct increment in Hall resistivity at very modest field of $H$ $\sim$ 0.015 T. The experimental findings suggest the development of a new research vista to study the planar and the field induced Hall effects in artificial spin ice.
Geometrically frustrated materials, such as spin ice or kagome lattice, are known to exhibit exotic Hall effect phenomena due to spin chirality. We explore Hall effect mechanism in an artificial honeycomb spin ice of Nd--Sn element using Hall probe and polarized neutron reflectivity measurements. In an interesting observation, a strong enhancement in Hall signal at relatively higher temperature of $T$ $\sim$ 20 K is detected. The effect is attributed to the planar Hall effect due to magnetic moment configuration in spin ice state in low field application. In the antiferromagnetic state of neodymium at low temperature, applied field induced coupling between atomic Nd moments and conduction electrons in underlying lattice causes distinct increment in Hall resistivity at very modest field of $H$ $\sim$ 0.015 T. The experimental findings suggest the development of a new research vista to study the planar and the field induced Hall effects in artificial spin ice.
