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Challenges and Future Trends of Magnetic Sensors
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Challenges and Future Trends of Magnetic Sensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensor Materials".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 4544

Special Issue Editor

Prof. Dr. Galina V. Kurlyandskaya

E-Mail Website
Guest Editor
Department of Magnetism and Magnetic Nanomaterials, Ural Federal University, Yekaterinburg 620083, Russia
Interests: magnetism; magnetic materials; magnetic sensors; magnetic biosensors; magnetoresistance; magnetoimpedance; magnetic nanoparticles; magnetic multilayers; ferrofluids; ferrogels; microwave absorption; teaching magnetism
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Many traditional materials and composites are not suitable for the increasingly complex requirements of the fast-growing number of magnetic sensors and microsystems with magnetic components designed for automatization, navigation, industrial processes control, environmental control, biosensing and biomedical applications, drug delivery, and many others. The need for magnetic devices continues to challenge the materials science community to develop novel magnetic and composite materials that are suitable for such purposes. The principal requirements for a new generation of sensors are well-known: high sensitivity, small size, low power consumption, stability, quick response, resistance to aggressive media, low price, and operation by non-skilled personnel. The increase in the number of nanomaterials available for research and applications requires that the methods of their characterization be even more precise than before. The proposed Special Issue is intended to summarize existing and new concepts related to material science, modeling, and technological achievements in the field of magnetic sensors in order to better understand the foreseeable future of these devices.

I invite you to be an important part of this Special Issue. Both research papers and review articles are welcome.

  • Magnetic effects;
  • Magnetic materials for sensor applications;
  • Magnetic field sensors;
  • Magnetic biosensors;
  • Hybrid sensors;
  • Modeling for magnetic sensor applications;
  • Complex structures and composites for magnetic sensor applications.

Prof. Dr. Galina V. Kurlyandskaya
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (5 papers)

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Research

10 pages, 2022 KiB  
Communication
Monitoring the Velocity of Domain Wall Motion in Magnetic Microwires
by Alexander Chizhik, Paula Corte-Leon, Valentina Zhukova, Juan Mari Blanco and Arcady Zhukov
Sensors 2024, 24(4), 1326; https://0-doi-org.brum.beds.ac.uk/10.3390/s24041326 - 19 Feb 2024
Viewed by 599
Abstract
An approach was proposed to control the displacement of domain walls in magnetic microwires, which are employed in magnetic sensors. The velocity of the domain wall can be altered by the interaction of two magnetic microwires of distinct types. Thorough investigations were conducted [...] Read more.
An approach was proposed to control the displacement of domain walls in magnetic microwires, which are employed in magnetic sensors. The velocity of the domain wall can be altered by the interaction of two magnetic microwires of distinct types. Thorough investigations were conducted utilizing fluxmetric, Sixtus–Tonks, and magneto-optical techniques. The magneto-optical examinations revealed transformation in the surface structure of the domain wall and facilitated the determination of the mechanism of external influence on the movement of domain walls in magnetic microwires. Full article
(This article belongs to the Special Issue Challenges and Future Trends of Magnetic Sensors)
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24 pages, 10644 KiB  
Article
Relationship of Magnetic Domain and Permeability for Clustered Soft Magnetic Narrow Strips with In-Plane Inclined Magnetization Easy Axis on Distributed Magnetic Field
by Tomoo Nakai
Sensors 2024, 24(2), 706; https://0-doi-org.brum.beds.ac.uk/10.3390/s24020706 - 22 Jan 2024
Viewed by 678
Abstract
A unique functionality was reported for a thin-film soft magnetic strip with a certain angle of inclined magnetic anisotropy. It can switch magnetic domain by applying a surface normal field with a certain distribution on the element. The domain switches between a single [...] Read more.
A unique functionality was reported for a thin-film soft magnetic strip with a certain angle of inclined magnetic anisotropy. It can switch magnetic domain by applying a surface normal field with a certain distribution on the element. The domain switches between a single domain and a multi-domain. Our previous study shows that this phenomenon appears even in the case of the adjacent configuration of multiple narrow strips. It was also reported that the magnetic permeability for the alternating current (AC) magnetic field changes drastically in the frequency range from 10 kHz to 10 MHz as a function of the strength of the distributed magnetic field. In this paper, the correspondence of AC permeability and the magnetic domain as a function of the intensity of the distributed field is investigated. It was confirmed that the extension of the area of the Landau–Lifshitz-like multi-domain on the clustered narrow strips was observed as a function of the intensity of the distributed magnetic field, and this domain extension was matched with the permeability variation. The result leads to the application of this phenomenon to a tunable inductor, electromagnetic shielding, or a sensor for detecting and memorizing the existence of a distributed magnetic field generated by a magnetic nanoparticle in the vicinity of the sensor. Full article
(This article belongs to the Special Issue Challenges and Future Trends of Magnetic Sensors)
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14 pages, 6389 KiB  
Article
A Spin Valve-Based Rhombus-Shaped Micro-Object Implementing a Full Wheatstone Bridge
by Mikhail Milyaev, Larisa Naumova, Anastasiya Germizina, Tatyana Chernyshova, Anastasia Pavlova, Tatiana Krinitsina, Vyacheslav Proglyado and Vladimir Ustinov
Sensors 2024, 24(2), 625; https://0-doi-org.brum.beds.ac.uk/10.3390/s24020625 - 18 Jan 2024
Viewed by 591
Abstract
Spin valves with a synthetic antiferromagnet were fabricated via magnetron sputtering. It was shown that the fabricated spin valve layers had a perfect microstructure and smooth interfaces, and therefore, an RKKY interaction dominated in the coupling of the ferromagnetic layers separated by a [...] Read more.
Spin valves with a synthetic antiferromagnet were fabricated via magnetron sputtering. It was shown that the fabricated spin valve layers had a perfect microstructure and smooth interfaces, and therefore, an RKKY interaction dominated in the coupling of the ferromagnetic layers separated by a copper spacer. Rhombus-shaped micro-objects were fabricated from a single spin valve film. The thermomagnetic treatment procedure was found to form unidirectional anisotropy in the micro-object such that the values of the exchange bias fields in the rhombus’ nonparallel sides were opposite in sign. For the CoFeNi/Ru/CoFeNi synthetic antiferromagnet, we determined the differences between the ferromagnetic layer thicknesses at which the thermomagnetic treatment formed the same exchange bias all over each rhombus’ side. We also fabricated a sensor element in which each side of the rhombus was the shoulder of a Wheatstone bridge. After the thermomagnetic treatment procedure, each shoulder worked as an active magnetosensitive element, enabling the device to operate as a full Wheatstone bridge. The sensor output exhibited a step shape, high sensitivity to field changes, and significant magnetic hysteresis. Such characteristics are suitable for switching devices. Full article
(This article belongs to the Special Issue Challenges and Future Trends of Magnetic Sensors)
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13 pages, 4708 KiB  
Article
Magnetoimpedance Effect in Cobalt-Based Amorphous Ribbons with an Inhomogeneous Magnetic Structure
by Dmitry A. Bukreev, Michael S. Derevyanko and Alexander V. Semirov
Sensors 2023, 23(19), 8283; https://0-doi-org.brum.beds.ac.uk/10.3390/s23198283 - 07 Oct 2023
Viewed by 799
Abstract
The results of a computer simulation and experimental study of the magnetoimpedance effect (MI) in amorphous Co68.5Fe4.0Si15.0B12.5 and Co68.6Fe3.9Mo3.0Si12.0B12.5 ribbons in the ac frequency range from 0.01 [...] Read more.
The results of a computer simulation and experimental study of the magnetoimpedance effect (MI) in amorphous Co68.5Fe4.0Si15.0B12.5 and Co68.6Fe3.9Mo3.0Si12.0B12.5 ribbons in the ac frequency range from 0.01 to 100 MHz are presented. It was found that the maximum MI value exceeds 200%, which may be of interest in the development of magnetic field sensors. It is also shown that practically significant characteristics of the MI response strongly depend on the ac frequency, which is due to the inhomogeneous distribution of magnetic properties over the ribbon cross section. This distribution was studied using magnetoimpedance tomography based on the analysis of the experimental dependences of the reduced impedance on the ac frequency. Full article
(This article belongs to the Special Issue Challenges and Future Trends of Magnetic Sensors)
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12 pages, 2324 KiB  
Article
Longitudinal Spin Seebeck Effect Thermopiles Based on Flexible Co-Rich Amorphous Ribbons/Pt Thin-Film Heterostructures
by Marcio A. Correa, Andrey V. Svalov, Armando Ferreira, Matheus Gamino, Edimilson F. da Silva, Felipe Bohn, Filipe Vaz, Danniel F. de Oliveira and Galina V. Kurlyandskaya
Sensors 2023, 23(18), 7781; https://0-doi-org.brum.beds.ac.uk/10.3390/s23187781 - 10 Sep 2023
Viewed by 884
Abstract
Thermoelectric phenomena, such as the Anomalous Nernst and Longitudinal Spin Seebeck Effects, are promising for sensor applications in the area of renewable energy. In the case of flexible electronic materials, the request is even larger because they can be integrated into devices having [...] Read more.
Thermoelectric phenomena, such as the Anomalous Nernst and Longitudinal Spin Seebeck Effects, are promising for sensor applications in the area of renewable energy. In the case of flexible electronic materials, the request is even larger because they can be integrated into devices having complex shape surfaces. Here, we reveal that Pt promotes an enhancement of the thermoelectric response in Co-rich ribbon/Pt heterostructures due to the spin-to-charge conversion. Moreover, we demonstrated that the employment of the thermopiles configuration in this system increases the induced thermoelectric current, a fact related to the considerable decrease in the electric resistance of the system. By comparing present findings with the literature, we were able to design a flexible thermopile based on LSSE without the lithography process. Additionally, the thermoelectric voltage found in the studied flexible heterostructures is comparable to the ones verified for rigid systems. Full article
(This article belongs to the Special Issue Challenges and Future Trends of Magnetic Sensors)
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