dc.contributor.author | Siddiqui, Saima Afroz | |
dc.contributor.author | Han, Jiahao | |
dc.contributor.author | Finley, Joseph Tyler | |
dc.contributor.author | Ross, Caroline A | |
dc.contributor.author | Liu, Luqiao | |
dc.date.accessioned | 2018-07-31T12:43:34Z | |
dc.date.available | 2018-07-31T12:43:34Z | |
dc.date.issued | 2018-07 | |
dc.date.submitted | 2018-03 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/117209 | |
dc.description.abstract | Owing to the difficulty in detecting and manipulating the magnetic states of antiferromagnetic materials, studying their switching dynamics using electrical methods remains a challenging task. By employing heavy-metal–rare-earth–transition-metal alloy bilayers, we experimentally study current-induced domain wall dynamics in an antiferromagnetically coupled system. We show that the current-induced domain wall mobility reaches a maximum at the angular momentum compensation point. With experiment and modeling, we further reveal the internal structures of domain walls and the underlying mechanisms for their fast motion. We show that the chirality of the ferrimagnetic domain walls remains the same across the compensation points, suggesting that spin orientations of specific sublattices rather than net magnetization determine Dzyaloshinskii-Moriya interaction in heavy-metal–ferrimagnet bilayers. The high current-induced domain wall mobility and the robust domain wall chirality in compensated ferrimagnetic material opens new opportunities for high-speed spintronic devices. | en_US |
dc.description.sponsorship | National Science Foundation (U. S.) (Grant No. 1639921) | en_US |
dc.description.sponsorship | Nanoelectronics Research Corporation | en_US |
dc.description.sponsorship | Nanoelectronics Research Initiative Center (Research Task ID No. 2700.001) | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevLett.121.057701 | en_US |
dc.rights | 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. | en_US |
dc.source | American Physical Society | en_US |
dc.title | Current-Induced Domain Wall Motion in a Compensated Ferrimagnet | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Siddiqui, Saima A., Jiahao Han, Joseph T. Finley, Caroline A. Ross and Luqiao Liu. "Current-Induced Domain Wall Motion in a Compensated Ferrimagnet." Physical Review Letters 121 (2018), 057701. | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | |
dc.contributor.department | Massachusetts Institute of Technology. Department of Materials Science and Engineering | |
dc.contributor.mitauthor | Siddiqui, Saima Afroz | |
dc.contributor.mitauthor | Han, Jiahao | |
dc.contributor.mitauthor | Finley, Joseph Tyler | |
dc.contributor.mitauthor | Ross, Caroline A | |
dc.contributor.mitauthor | Liu, Luqiao | |
dc.relation.journal | Physical Review Letters | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2018-07-30T16:18:09Z | |
dc.language.rfc3066 | en | |
dc.rights.holder | American Physical Society | |
dspace.orderedauthors | Siddiqui, Saima A.; Han, Jiahao; Finley, Joseph T.; Ross, Caroline A.; Liu, Luqiao | en_US |
dspace.embargo.terms | N | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-9884-0598 | |
dc.identifier.orcid | https://orcid.org/0000-0002-6179-599X | |
dc.identifier.orcid | https://orcid.org/0000-0003-2262-1249 | |
dc.identifier.orcid | https://orcid.org/0000-0001-6892-8102 | |
mit.license | PUBLISHER_POLICY | en_US |