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research article

Antiferromagnetic MnNi tips for spin-polarized scanning probe microscopy

Forrester, P. R.
•
Bilgeri, T.  
•
Patthey, F.  
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December 1, 2018
Review Of Scientific Instruments

Spin-polarized scanning tunneling microscopy (SP-STM) measures magnetoresistance with atomic resolution. While various methods for achieving SP probes have been developed, each is limited with respect to fabrication, performance, and operating conditions. In this study, we present the fabrication and use of SP-STM tips made from commercially available antiferromagnetic Mn88Ni12 foils. The tips are intrinsically SP, which is attractive for exploring magnetic phenomena in the zero field limit. The tip material is relatively ductile, is straightforward to etch, and has a Neel temperature exceeding 300 K. We benchmark the topographic and spectroscopic performance of our tips and demonstrate their spin sensitivity by measuring the two-state switching of holmium single atom magnets on MgO/Ag(100). Published by AIP Publishing.

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Type
research article
DOI
10.1063/1.5042530
Web of Science ID

WOS:000454631900033

Author(s)
Forrester, P. R.
•
Bilgeri, T.  
•
Patthey, F.  
•
Brune, H.  
•
Natterer, F. D.  
Date Issued

2018-12-01

Publisher

AMER INST PHYSICS

Published in
Review Of Scientific Instruments
Volume

89

Issue

12

Article Number

123706

Subjects

Instruments & Instrumentation

•

Physics, Applied

•

Instruments & Instrumentation

•

Physics

•

tunneling-microscopy

•

majorana fermions

•

fabrication

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LNS  
Available on Infoscience
January 23, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/153810
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