Preparation of Fe STM tips for room-temperature spin-polarized tunneling spectroscopy

Jȩdrzej Tepper; Jan M. van Ruitenbeek

Preparation of Fe STM tips for room-temperature spin-polarized tunneling spectroscopy

Mesoscale and Nanoscale Physics 2026-01-21 v3

Authors: Jȩdrzej Tepper , Jan M. van Ruitenbeek

Abstract

We present a recipe based on field-directed Ar ion etching of iron tips that results in probes suitable for stable spin-polarized scanning tunneling spectroscopy. This is illustrated by a measurement of the spectroscopic mapping of the magnetization of Co islands on Cu(111).

Keywords

spin-polarized STM iron tips field-directed ion etching tunneling spectroscopy magnetic imaging

Cite

@article{arxiv.2406.15220,
  title  = {Preparation of Fe STM tips for room-temperature spin-polarized tunneling spectroscopy},
  author = {Jȩdrzej Tepper and Jan M. van Ruitenbeek},
  journal= {arXiv preprint arXiv:2406.15220},
  year   = {2026}
}

Comments

The results are described only in a qualitative manner and no quantification is provided to support the drawn conclusions. The results are based on a very limited number of STM tips, which makes the significance of the claims questionable

Preparation of Fe STM tips for room-temperature spin-polarized tunneling spectroscopy

Abstract

Keywords

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