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A radio-frequency spin-polarized scanning tunneling microscope
Review of Scientific Instruments ( IF 1.3 ) Pub Date : 2019-12-01 , DOI: 10.1063/1.5104317
J Friedlein 1 , J Harm 1 , P Lindner 1 , L Bargsten 1 , M Bazarnik 1 , S Krause 1 , R Wiesendanger 1
Affiliation  

A scanning tunneling microscope for spin-resolved studies of dynamic systems is presented. The cryogenic setup allows the scanning tunneling microscope to achieve a cutoff frequency beyond 26 GHz at the tunnel junction and to be operable at temperatures of 1.1 K-100 K in a magnetic field of up to 3 T. For this purpose, the microscope and its wiring as well as the associated cryostat system were specially designed and manufactured. For sample preparation, an ultrahigh vacuum system was developed, which is equipped with modular preparation platforms. Measurements showing the characteristics of the scanning tunneling microscope in the time and frequency domain are presented. As a proof of concept, experimental data of the Pd/Fe/Ir(111) sample system at 95 K in a magnetic field of 3 T are presented.

中文翻译:

射频自旋偏振扫描隧道显微镜

介绍了一种用于动态系统自旋分辨研究的扫描隧道显微镜。低温设置允许扫描隧道显微镜在隧道结处实现超过 26 GHz 的截止频率,并且可在高达 3 T 的磁场中在 1.1 K-100 K 的温度下运行。为此,显微镜及其接线以及相关的低温恒温器系统是专门设计和制造的。对于样品制备,开发了配备模块化制备平台的超高真空系统。测量显示了扫描隧道显微镜在时域和频域中的特性。作为概念证明,本文提供了 Pd/Fe/Ir(111) 样品系统在 95 K 和 3 T 磁场中的实验数据。
更新日期:2019-12-01
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