Cryogenic STM in 3D vector magnetic fields realized through a rotatable insert

Christopher William James Trainer, Chi Ming Yim, Martin McLaren, Peter Wahl

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

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.
Original languageEnglish
Article number093705
Number of pages4
JournalReview of Scientific Instruments
Volume88
Issue number9
Early online date29 Sept 2017
DOIs
Publication statusPublished - Sept 2017

Keywords

  • Spin-polarized scanning tunneling microscopy
  • Magnetism
  • Vector magnetic fields

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