论文标题
用于现场依赖表面科学研究的牺牲磁铁概念
A Sacrificial Magnet Concept for Field Dependent Surface Science Studies
论文作者
论文摘要
我们通过将NDFEB永久磁铁粘贴到可磁性样品板中，展示了将磁场整合到低温扫描隧道显微镜（STM）中的直接方法。为了使我们的磁铁概念与高温样品清洁程序兼容，我们使磁铁的不可逆转反应成为我们制备周期的中心部分。通过将磁体加热到库丽温度以上，牺牲磁铁后，我们使用转移工具将样品转移到STM之前，将新的磁铁固定在原位。我们使用超导nbse2的abrikosov涡旋晶格来表征磁铁产生的磁场。来自实验和模拟的距离磁场之间的良好一致性使我们能够相对于磁铁和样品板预测任何位置的磁通量的大小和方向。我们的概念是针对现场依赖性表面科学研究的可访问解决方案，需要在400吨范围内的田地以及其他有害的加热程序。
We demonstrate a straightforward approach to integrating a magnetic field into a low-temperature scanning tunneling microscope (STM) by adhering an NdFeB permanent magnet to a magnetizable sample plate. To render our magnet concept compatible with high-temperature sample cleaning procedures, we make the irreversible demagnetization of the magnet a central part of our preparation cycle. After sacrificing the magnet by heating it above its Curie temperature, we use a transfer tool to attach a new magnet in-situ prior to transferring the sample into the STM. We characterize the magnetic field created by the magnet using the Abrikosov vortex lattice of superconducting NbSe2. Excellent agreement between the distance dependent magnetic fields from experiments and simulations allows us to predict the magnitude and orientation of magnetic flux at any location with respect to the magnet and the sample plate. Our concept is an accessible solution for field-dependent surface science studies that require fields in the range of up to 400 mT and otherwise detrimental heating procedures.
