卡内基梅隆大学研究人员在霍尔效应领域取得重大突破，推翻了长达百年的物理学基本假设。1该团队发现了霍尔效应的异常形式，证明磁场无需垂直于材料表面即可产生霍尔响应。1相关研究成果已于2026年9月3日发表在《自然材料》期刊上。1
研究人员在由二维材料钽铱碲化物与磁性层铬锗碲化铬组成的超薄异质结构中，成功演示了平面内异常霍尔效应。1这一发现使得在同一器件中同时测量垂直和平面内的霍尔信号成为可能。1研究团队负责人Simranjeet Singh表示："我们证明了一个多维霍尔效应是可能的。以前你需要两个传感器来测量两个方向上的磁场，现在一个传感器就可以做多维磁感应。"1这项技术突破有望在电子器件、运输系统和医疗成像等领域得到广泛应用。1
Researchers at Carnegie Mellon University have challenged a fundamental principle in physics by demonstrating an anomalous form of the Hall effect that operates within the plane of a material, rather than requiring a perpendicular magnetic field as previously assumed for over a century 1. The team successfully created an in-plane anomalous Hall effect using an ultrathin heterostructure composed of the two-dimensional material tantalum iridium telluride paired with a magnetic layer of chromium germanium telluride 1.
The findings, published in Nature Materials on September 3, 2026, suggest that this discovery could enable single sensors to measure magnetic fields in multiple dimensions simultaneously 1. According to Simranjeet Singh, a member of the research team, "We have demonstrated that a multidimensional Hall effect is possible. Previously, you needed two sensors to measure magnetic fields in two directions, but now a single sensor can perform multidimensional magnetic sensing" 1. This technological advancement holds promise for applications in electronics, transportation, and medical imaging 1.
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