ENGLISH
|
JAPANESE
|
CONNECT WITH US:
Home
About
Contact
Log in
Home
Press release
Mar 30, 2021 01:00 JST
Source:
Science and Technology of Advanced Materials
Putting a spin on Heusler alloys
A review on the latest research of the various types of Heusler alloys summarizes the field's main achievements up to 2020.
TSUKUBA, Japan, Mar 30, 2021 - (ACN Newswire) - A study published in the journal Science and Technology of Advanced Materials summarizes the major achievements made to-date in Heusler alloy research. "Our review article can serve as an ideal reference for researchers in magnetic materials," says Atsufumi Hirohata of the University of York, UK, who specializes in spintronics.
Spin 'batteries' use electron spins, instead of their charge, to power spintronic devices.
Spintronics, also known as spin electronics, is a field of applied physics that studies the use of electron spins, instead of their charge, to carry information in solid-state devices, with reduction in power consumption and improvements in memory and processing capabilities.
A category of materials showing great promise in this area is Heusler alloys: materials formed of one or two parts metal X, one part metal Y, and one part metal Z, each coming from a distinct part of the periodic table of elements. The interesting thing about these alloys is that individually, the metals are not magnetic, but when combined, they become magnetic.
A major advantage of Heusler alloys for spintronic devices is the ability to control their unique electrical and magnetic properties, which result directly from electron spins, by making changes to their crystalline structures. But this requires very high temperatures, which researchers want to reduce.
Over the last few decades, scientists have been working on approaches to grow Heusler alloy films at room temperature on special substrates with crystal lattices that are similar to the alloy's. The interaction between the two lattices can lead to the development of half-metallicity in the Heusler alloy, where only electrons spinning in one orientation are conducted through the material whereas those spinning in another are not.
Researchers need to be able to measure the properties of materials in order to conduct their investigations. The atomic structure of Heusler alloys can be directly observed by X-ray diffraction and indirectly measured through examining the relationship between the material's resistance to an electric current and temperature changes. Other techniques are also available for measuring their magnetic properties.
Hirohata and his colleagues are currently working on fabricating a metallic magnetic junction made of Heusler alloy films. These junctions are made from two ferromagnets separated by a thin insulator. When the insulating layer is thin enough, electrons are able to tunnel from one ferromagnet to the other. There is low resistance to electron movement as long as an external magnetic field is applied, but as soon as it is removed, the material becomes highly resistant to electron movement. "These devices are expected to replace currently used memory cells and magnetic sensors," says Hirohata. The team hopes to develop metallic magnetic junctions with much larger magnetoresistance than the current record at room temperature, realising a next-generation memory for a sustainable society.
Research paper:
https://www.tandfonline.com/doi/full/10.1080/14686996.2020.1812364
Further information
Atsufumi Hirohata
University of York
Email:
atsufumi.hirohata@york.ac.uk
About Science and Technology of Advanced Materials Journal
Open access journal STAM publishes outstanding research articles across all aspects of materials science, including functional and structural materials, theoretical analyses, and properties of materials.
Chikashi Nishimura
STAM Publishing Director
Email:
NISHIMURA.Chikashi@nims.go.jp
Press release distributed by ResearchSEA for Science and Technology of Advanced Materials.
Source: Science and Technology of Advanced Materials
Sectors: Electronics, Science & Nanotech, Alternative Energy
Copyright ©2024 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.
Latest Release
Hitachi: Established the Open Source Program Office (OSPO) to Globally Lead the Strategic Utilization of OSS
Nov 11, 2024 10:31 JST
Transgene and NEC Present New Data Confirming Clinical Proof of Principle for Neoantigen Cancer Vaccine, TG4050, in Head & Neck Cancer at SITC 2024
Nov 08, 2024 10:31 JST
Hitachi High-Tech and University of Tokyo Promote Joint Research for the Practical Application of High-resolution Laser-PEEM in the Semiconductor Field
Nov 07, 2024 18:19 JST
Mitsubishi Motors Acquires Its Own Shares from Nissan
Nov 07, 2024 17:20 JST
Honda Signs Sponsorship Agreement to Provide Electrified Vehicles at World Athletics Championships Tokyo 25
Nov 07, 2024 17:10 JST
Home of Fujitsu joint conservation project designated as first Nationally Certified Sustainably Managed Natural Site in Okinawa
Nov 07, 2024 14:51 JST
NEC and NEC Bio publish foundational work on T Cell Receptor engineering using proprietary generative AI at the Society for Immunotherapy of Cancer annual meeting
Nov 07, 2024 11:40 JST
Anime Tokyo Station 1st Anniversary Event: Celebrating one year since the opening of the new hub for sharing Japanese anime
Nov 07, 2024 11:00 JST
57% of Banking Executives Struggle with Data Silos, Blocking AI-Driven Personalization, CleverTap's New Report Highlights
Nov 06, 2024 15:30 JST
Honda Unveils Electric Motorcycle Concept Models "EV Fun Concept" and "EV Urban Concept" at EICMA 2024
Nov 06, 2024 14:15 JST
Yoshimoto Kogyo and Mitsubishi Corporation have signed a business partnership agreement for co-creation of business using "laughter"
Nov 06, 2024 11:51 JST
Honda to Begin European Verification Test of Battery Sharing Service with GoCimo
Nov 06, 2024 10:39 JST
Honda Unveils World's First and New V3 Engine with Electrical- Compressor at EICMA 2024
Nov 06, 2024 09:03 JST
Victory and world title for TOYOTA GAZOO Racing
Nov 05, 2024 17:59 JST
Tokyo Stock Exchange and Fujitsu announce renewal of cash equity trading system 'arrowhead4.0'
Nov 05, 2024 17:13 JST
Mitsubishi Heavy Industries Continues Order Intake, Revenue, and Profit Growth in Strong First Half, Raises Full-Year Order Intake Guidance
Nov 05, 2024 14:37 JST
Eisai's Corporate Venture Capital Subsidiary, Eisai Innovation, Inc., Selected for AMED's 'Strengthening Program for Pharmaceutical Startup Ecosystem"
Nov 05, 2024 11:35 JST
Asahi Kasei and Honda Sign Shareholders' Agreement to Convert Existing Asahi Kasei Subsidiary into Joint Venture for Production of Lithium-ion Battery Separators in Canada
Nov 04, 2024 14:12 JST
Joby Aviation and Toyota Accelerate Efforts to Realize Air Mobility
Nov 04, 2024 09:36 JST
Eisai Completes Rolling Submission to US FDA for LEQEMBI(R) (lecanemab-irmb) Biologics License Application for Subcutaneous Maintenance Dosing for the Treatment of Early Alzheimer's Disease Under the Fast Track Status
Nov 01, 2024 13:56 JST
More Latest Release >>
Related Release
Machine learning can predict the mechanical properties of polymers
October 25 2024 23:00 JST
Dual-action therapy shows promise against aggressive oral cancer
July 30 2024 20:00 JST
A new spin on materials analysis
April 17 2024 22:00 JST
Kirigami hydrogels rise from cellulose film
April 12 2024 18:00 JST
Sensing structure without touching
February 27 2024 08:00 JST
Nano-sized probes reveal how cellular structure responds to pressure
November 21 2023 07:00 JST
Machine learning techniques improve X-ray materials analysis
November 17 2023 10:00 JST
A bio-inspired twist on robotic handling
November 14 2023 20:00 JST
GPT-4 artificial intelligence shows some competence in chemistry
October 17 2023 08:00 JST
Closing the loop between artificial intelligence and robotic experiments
August 24 2023 09:00 JST
More Press release >>