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Special Issue "Magnetoresistance Effects and Their Application to Spintronic Devices"

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: 31 December 2017

Special Issue Editors

Guest Editor
Prof. Dr. Koki Takanashi

Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendal 980-77, Japan
Website | E-Mail
Interests: spintronics; nanomagnetism; ordered alloys
Guest Editor
Prof. Dr. Atsufumi Hirohata

Development of Electronics, University of York, Heslington, York YO10 5DD, UK
Website | E-Mail
Interests: spintronics; half-metallic ferromagnets; quantum nanoelectronics; nano-spintronic devices

Special Issue Information

Dear Colleagues,

Half-metallic ferromagnets have been attracting intensive research in the view of realising an ideal 100% spin-polarised ferromagnet at room temperature. Among such ferromagnets, Heusler alloys have the greatest potential due to their high Curie temperatures, good lattice matching with major substrates, large minority-spin band-gap, and large magnetic moments in general. In this Special Issue, we focus on their magnetoresistance, in both vertical and lateral junctions, formed with a non-magnetic metallic or insulating layer. These junctions can be implemented in a read sensor in a hard disk drive or in a cell of magnetic random access memory to improve their recording density and operation efficiency. We intend to cover from theory and fundamentals of such junctions to their applications.

Prof. Dr. Koki Takanashi
Prof. Dr. Atsufumi Hirohata
Guest Editors

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 papers will be 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. Materials is an international peer-reviewed open access monthly 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 1500 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.


  • heusler alloys
  • giant magnetoresistance
  • tunnel magnetoresistance
  • half-metallic ferromagnets

Published Papers (1 paper)

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Open AccessArticle Electronic Energy Meter Based on a Tunnel Magnetoresistive Effect (TMR) Current Sensor
Materials 2017, 10(10), 1134; doi:10.3390/ma10101134
Received: 1 August 2017 / Revised: 10 September 2017 / Accepted: 15 September 2017 / Published: 26 September 2017
PDF Full-text (6109 KB) | HTML Full-text | XML Full-text
In the present work, the design and microfabrication of a tunneling magnetoresistance (TMR) electrical current sensor is presented. After its physical and electrical characterization, a wattmeter is developed to determine the active power delivered to a load from the AC 50/60 Hz mains
[...] Read more.
In the present work, the design and microfabrication of a tunneling magnetoresistance (TMR) electrical current sensor is presented. After its physical and electrical characterization, a wattmeter is developed to determine the active power delivered to a load from the AC 50/60 Hz mains line. Experimental results are shown up to 1000 W of power load. A relative uncertainty of less than 1.5% with resistive load and less than 1% with capacitive load was obtained. The described application is an example of how TMR sensing technology can play a relevant role in the management and control of electrical energy. Full article
(This article belongs to the Special Issue Magnetoresistance Effects and Their Application to Spintronic Devices)

Figure 1

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Type of Paper: Article
Title: Highly conductive magnetic graphene nanocomposites based on layered double hydroxides as new materials for spintronics
Authors: Helena Prima-García 1, Marco Calbucci 1, Gonzalo Abellán 1,2, Marcos Latorre-Sánchez 3, Hermenegildo García 3

  1. Instituto de Ciencia Molecular (ICMol), Universidad de Valencia. Calle Catedrático José Beltrán 2, 46980 Paterna, Spain. Telf:+ 34 96 354 4420
  2. Department of Chemistry and Pharmacy and Institute of Advanced Materials and Processes (ZMP), University Erlangen-Nürnberg, Henkestr. 42, 91054 Erlangen, and Dr.-Mack Str. 81, 90762 Fürth, Germany.
  3. Instituto de Tecnología Química (ITQ). Avenida de los Naranjos, s/n 46022, Valencia, Spain. Tel: + 34 96 387 7800.

Abstract: A highly conductive and magnetic material based on graphene and ferrimagnetic (NiO/NiFe2O4) nanoparticles is presented as a real alternative to the non-air stable ferromagnetic electrodes commonly used in the spintronic devices. The magnetic, transport, and magneto-transport properties of these nanocomposites are studied and compared with graphene and graphene with non-magnetic nanoparticles. The hierarchical structure of these hybrid magnetic nanocomposites leads to the observation of a higher magnetoresistive effect that the evaporated ferromagnetic films.

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