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review article on Heusler alloys for spintronic devices wins the STAM Altmetrics Award for 2021

TSUKUBA, Japan, January 13, 2022 / PRNewswire / – Heusler’s alloys are notable materials that exhibit ferromagnetism, despite being composed only of paramagnetic or diamagnetic elements like copper and aluminum. Remarkably, massive Heusler alloys achieve a spin polarization of 100% at room temperature, which opens up possibilities as spin sources in spintronic devices. In her award-winning paper published in stay, Atsufumi Hirohata and colleagues describe recent advances in Heusler alloys and potential applications in spintronic devices, including HDD read heads and MRAM cells.

Figure showing the unique properties of Heusler alloys. (Credit Hirohata et al. STAM)

Figure showing the unique properties of Heusler alloys. (Credit Hirohata et al. STAM)

Details about the paper

Kelvin Elphick, William Frost, Marjan Samiepour, Takahide Kubota, Koki Takanashi, Hiroaki Sukegawa, Seiji Mitani & Atsufumi Hirohata (2021) Heusler alloys for spintronic components: Review of recent developments and future prospects, Science and Technology of Advanced Materials, 22: 1, 235-271, DOI: 10.1080 / 14686996.2020.1812364

https://www.tandfonline.com/doi/full/10.1080/14686996.2020.1812364

“In this STAM review article, we describe the latest developments in Heusler alloys for (anti-) ferromagnetic films in spintronic applications and beyond,” explains Hirohata. “One possibility is the production of magnetoresistive junctions that consist exclusively of Heusler alloy layers. Compared to conventional nanoelectronic devices, such transitions and devices offer energy-efficient operation that also meets the requirements of the UN sustainability goals. “

In particular, films made from semi-metallic ferromagnets and antiferromagnets near room temperature have been demonstrated, and precise atomic control of their crystalline structures and arrangement offers the potential to exhibit such behavior above room temperature, opening up opportunities for the implementation of innovative devices. “Since these alloys have several thousand combinations, finding suitable alloys can require machine learning and modeling,” adds Hirohata.

Upon receiving the award and opinions on STAM

“It is a great honor for us to receive this prestigious award. We are particularly grateful for the recognition, as we have been working on the Heusler alloys since the very early development phase, ”says Hirohata. “We hope that this award will attract more researchers to look for more alloys for spintronic applications. STAM is a groundbreaking open access journal with great visibility and global readership. Its interdisciplinary nature offers publications in a wide range of areas of general interest Introductions that are accessible to researchers from different disciplines. “

relation

Kelvin Elphick, William Frost, Marjan Samiepour, Takahide Kubota, Koki Takanashi, Hiroaki Sukegawa, Seiji Mitani & Atsufumi Hirohata (2021) Heusler alloys for spintronic components: Review of recent developments and future prospects, Science and technology of advanced materials, 22: 1, 235-271, DOI: 10.1080 / 14686996.2020.1812364

Further information

science and technology of advanced materials (STAM) Headquarters, National Institute of Materials Science (NIMS)
Address: 1-2-1 Sengen, Tsukuba 305-0047
E-MAIL: stam-info@ml.nims.go.jp

About NIMS and STAM

NIMS and Empa – Eidgenössische Materialprüfungs- und Forschungsanstalten (Federal Materials Testing and Research Institutes) have jointly developed a flagship journal that provides high-quality information on current developments in materials science on an open access platform. The collaboration strengthens STAM’s position in Europe.

Cision

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