论文标题
顺磁物质的局部加热透明的响应
Diamagnetic-like response from localised heating of a paramagnetic material
论文作者
论文摘要
在搜索材料特性不平衡时，由电流引起的非平衡稳态是一个有吸引力的研究方向，可能会出现非常规状态。但是，不可避免的焦耳加热是由流动的当前呼吁开发新测量方案引起的，并特别注意所涉及的背景材料的物理特性。在这里，我们证明局部加热会产生一个大型的，虚拟磁性的信号。这是由于由加热样品引起的背景磁化的局部降低，前提是背景材料具有类似库里的敏感性。我们的实验结果以及数值计算构成了在电流流动下进行准确的磁测量的重要组成部分。
In the search of material properties out-of-equilibrium, the non-equilibrium steady states induced by electric current are an appealing research direction where unconventional states may emerge. However, the unavoidable Joule heating caused by flowing current calls for the development of new measurement protocols, with a particular attention to the physical properties of the background materials involved. Here, we demonstrate that localised heating can give rise to a large, spurious diamagnetic-like signal. This occurs due to the local reduction of the background magnetisation caused by the heated sample, provided that the background material has a Curie-like susceptibility. Our experimental results, along with numerical calculations, constitute an important building block for performing accurate magnetic measurements under the flow of electric current.
