On-tip sub-micrometer Hall probes for magnetic microscopy prepared by AFM lithography

Gregušová, D.; Martaus, J.; Fedor, J.; Kúdela, R.; Kostič, I.; Cambel, V.

doi:10.1016/j.ultramic.2009.03.018

Cited by 5 publications

(5 citation statements)

References 24 publications

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“…Fabricating the Hall probe on the end of a sharp tip would represent a major breakthrough for the technique as the active area of the Hall sensor can then be readily positioned much closer to the sample surface. AFM/Hall probe microscope hybrids have been fabricated and tested with Bismuth and III-V semiconductors as the active materials [39,109]. However these suffer from high lead resistances and poor stability under ambient conditions.…”

Section: Graphene Hall Probe Magnetic Imaging and Its Applicationsmentioning

confidence: 99%

“…It is also very challenging to fabricate and pattern the Hall probes in this geometry. Following a similar path to Gregusova et al, a graphene/hBN stack can be deterministically transferred onto a truncated tip, followed by Hall probe patterning [109]. However a truncated tip suffers from poorer topographical imaging as compared to a more conical tip shape.…”

Section: Graphene Hall Probe Magnetic Imaging and Its Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

Frontiers of graphene-based Hall-effect sensors

Collomb

Li²,

Bending³

2021

J. Phys.: Condens. Matter

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Hall sensors have become one of the most used magnetic sensors in recent decades, performing the vital function of providing a magnetic sense that is naturally absent in humans. Various electronic applications have evolved from circuit-integrated Hall sensors due to their low cost, simple linear magnetic field response, ability to operate in a large magnetic field range, high magnetic sensitivity and low electronic noise, in addition to many other advantages. Recent developments in the fabrication and performance of graphene Hall devices promise to open up the realm of Hall sensor applications by not only widening the horizon of current uses through performance improvements, but also driving Hall sensor electronics into entirely new areas. In this review paper we describe the evolution from the traditional selection of Hall device materials to graphene Hall devices, and explore the various applications enabled by them. This includes a summary of the selection of materials and architectures for contemporary micro-to nanoscale Hall sensors. We then turn our attention to introducing graphene and its remarkable physical properties and explore how this impacts the magnetic sensitivity and electronic noise of graphene-based Hall sensors. We summarise the current state-of-the art of research into graphene Hall probes, demonstrating their record-breaking performance. Building on this, we explore the various new application areas graphene Hall sensors are pioneering such as magnetic imaging and non-destructive testing. Finally, we look at recent encouraging results showing that graphene Hall sensors have plenty of room to improve, before then discussing future prospects for industry-level scalable fabrication.

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Section: Graphene Hall Probe Magnetic Imaging and Its Applicationsmentioning

confidence: 99%

Section: Graphene Hall Probe Magnetic Imaging and Its Applicationsmentioning

confidence: 99%

Frontiers of graphene-based Hall-effect sensors

Collomb

Li²,

Bending³

2021

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

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“…Nevertheless, MFM probe working within such a short distance usually causes a non-magnetic tip-sample interaction, thereby yielding unwanted topographic interference. A potential strategy to resolve this issue is to integrate a magneto-resistive sensor [39] or a magnetic field sensor for modern HDDs on the magnetic probe to highly improve the bit resolution [14].…”

Section: Conventional Probe-based Memoriesmentioning

confidence: 99%

Recent Progress on Probe-Based Storage Devices

Liu

Wang

2019

IEEE Access

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Prosperity of information technology triggers a tremendous amount of digital data that needs to be stored by storage memories with ultra-high capacity. Although probe-based memory has exhibited its superb storage merits, its developments to date, however, remain slow due to several physical limits. In order to overcome its drawbacks, and to further advance probe storage technologies, a comprehensive review regarding the current status and future prospect of probe-based memories become of importance. In this paper, we first presented the physical principles of various reported probe-based memories and their respective advantages/disadvantages, as well as their current status. Subsequently, up-to-date progress made on these probe memories and some novel probe memories concepts is proposed. The prospect of a probebased memory device is finally predicted.INDEX TERMS Phase-change materials, probe, capping, transmission.

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“…At this distance, non-magnetic tip-sample interactions become important, leading to undesired topographic cross-talk. A straightforward solution would be to use a Hall sensor integrated on a magnetic tip [108][109][110][111][112] . For better signal-to-noise ratios, integration of a magneto-resistive sensor at the end of the probe, similarly as in hard-disk recording, is preferred.…”

Section: Data Readingmentioning

confidence: 99%

Probe-based data storage

Koelmans,

Engelen,

Abelmann

2015

Preprint

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Probe-based data storage attracted many researchers from academia and industry, resulting in unprecedented high data-density demonstrations. This topical review gives a comprehensive overview of the main contributions that led to the major accomplishments in probe-based data storage. The most investigated technologies are reviewed: topographic, phase-change, magnetic, ferroelectric and atomic and molecular storage. Also, the positioning of probes and recording media, the cantilever arrays and parallel readout of the arrays of cantilevers are discussed. This overview serves two purposes. First, it provides an overview for new researchers entering the field of probe storage, as probe storage seems to be the only way to achieve data storage at atomic densities. Secondly, there is an enormous wealth of invaluable findings that can also be applied to many other fields of nanoscale research such as probe-based nanolithography, 3D nanopatterning, solid-state memory technologies and ultrafast probe microscopy. B. Current status of probe storageThe maturity of the various types of probe storage differs significantly. Four popular types, namely phase change, magnetic, thermomechanical and ferroelectric storage are listed in table I.Probe-based data storage has attracted much scientific and commercial interest [18][19][20] . After more than two decades of research on probe storage, an overview of what has been accomplished so far, together with an outlook of the a)

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On-tip sub-micrometer Hall probes for magnetic microscopy prepared by AFM lithography

Cited by 5 publications

References 24 publications

Frontiers of graphene-based Hall-effect sensors

Frontiers of graphene-based Hall-effect sensors

Recent Progress on Probe-Based Storage Devices

Probe-based data storage

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