A scanning hall probe microscope for characterization of micro-magnets and mm-sized magnetic structures

Here we present a scanning Hall probe microscope operated using tuning fork-based force detection technique. A unique feature of the microscope is the use of the same stepper motors for both sample positioning as well as scanning, which allows for a scan range of a few mm, with a scan resolution of...

Full description

Saved in:
Bibliographic Details
Main Authors: Shaw, Gorky, Kramer, Roman B. G., Dempsey, Nora. M., Hasselbach, Klaus
Format: Conference Proceeding
Language:English
Subjects:
Hall probes
Magnets
Physics
Tuning
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Here we present a scanning Hall probe microscope operated using tuning fork-based force detection technique. A unique feature of the microscope is the use of the same stepper motors for both sample positioning as well as scanning, which allows for a scan range of a few mm, with a scan resolution of 0.1 µm. Scanning at different heights from the sample surface is possible, in a z range of 35 mm. A combination of micro-structured Hall probes (of size 1-5 µm) and the tuning fork-based force detection has enabled achieving a minimum probe-sample distance < 2 µm. We discuss the salient features of the microscope and its application for the study of micro-magnet arrays and larger magnetic structures.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5113049