Spintronics with compensated ferrimagnets
Name
110501_1_1.5144076.pdf
Description
Published version
Size
739.35 KB
Format
Adobe PDF
Checksum (MD5)
75db7da725cb08ed831087fcc3965e13
Author(s)
Finley, Joseph
Liu, Luqiao
Date Issued
March 19, 2020
Journal
Applied Physics Letters
Publisher
AIP Publishing
Citation
Joseph Finley, Luqiao Liu; Spintronics with compensated ferrimagnets. Appl. Phys. Lett. 16 March 2020; 116 (11): 110501.
Version
Final published version
Abstract
Magnetic information storage has been achieved by controlling and sensing the magnetic moment orientation of nanoscale ferromagnets. Recently, there has been concentrated effort to utilize materials with antiferromagnetic coupling as a storage medium to realize devices that switch faster, are more secure against external magnetic fields, and have higher storage density. Within this class of materials are ferrimagnets, whose magnetization can be reduced to zero by tuning parameters such as the chemical composition, temperature, and strain. Compared to conventional antiferromagnets, compensated ferrimagnets not only possess the aforementioned speed and density advantages but also allow the use of convenient electrical reading and writing mechanisms due to the existence of inequivalent magnetic sublattices. Recent research has demonstrated fast spin-torque switching, as well as efficient electrical reading with compensated ferrimagnets. Further material and device research using these zero-moment magnets promises a spintronic platform for fast and energy efficient information storage technology.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/1.5144076
