Cryogenic STM in 3D vector magnetic fields realized through a rotatable insert
Abstract
Spin-polarized scanning tunneling microscopy (SP-STM) performed in vector magnetic fields promises atomic scale imaging of magnetic structure, providing complete information on the local spin texture of a sample in three dimensions. Here, we have designed and constructed a turntable system for a low temperature STM which in combination with a 2D vector magnet provides magnetic fields of up to 5 T in any direction relative to the tip-sample geometry. This enables STM imaging and spectroscopy to be performed at the same atomic-scale location and field-of-view on the sample, and most importantly, without experiencing any change on the tip apex before and after field switching. Combined with a ferromagnetic tip, this enables us to study the magnetization of complex magnetic orders in all three spatial directions.
Citation
Trainer , C W J , Yim , C M , McLaren , M & Wahl , P 2017 , ' Cryogenic STM in 3D vector magnetic fields realized through a rotatable insert ' , Review of Scientific Instruments , vol. 88 , no. 9 , 093705 . https://doi.org/10.1063/1.4995688
Publication
Review of Scientific Instruments
Status
Peer reviewed
ISSN
0034-6748Type
Journal article
Description
We acknowledge funding from EPSRC (EP/L505079/1 and EP/I031014/1).Collections
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