Enhancement of Thermally Injected Spin Current through an Antiferromagnetic Insulator

Persistent Link:
http://hdl.handle.net/10150/614754
Title:
Enhancement of Thermally Injected Spin Current through an Antiferromagnetic Insulator
Author:
Lin, Weiwei; Chen, Kai; Zhang, Shufeng; Chien, C. L.
Affiliation:
Univ Arizona, Dept Phys
Issue Date:
2016-05-05
Publisher:
AMER PHYSICAL SOC
Citation:
Enhancement of Thermally Injected Spin Current through an Antiferromagnetic Insulator 2016, 116 (18) Physical Review Letters
Journal:
Physical Review Letters
Rights:
© 2016 American Physical Society
Collection Information:
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
Abstract:
We report a large enhancement of thermally injected spin current in normal metal (NM)/antiferromagnet (AF)/yttrium iron garnet (YIG), where a thin AF insulating layer of NiO or CoO can enhance the spin current from YIG to a NM by up to a factor of 10. The spin current enhancement in NM/AF/YIG, with a pronounced maximum near the Neel temperature of the thin AF layer, has been found to scale linearly with the spin-mixing conductance at the NM/YIG interface for NM = 3d, 4d, and 5d metals. Calculations of spin current enhancement and spin mixing conductance are qualitatively consistent with the experimental results.
ISSN:
0031-9007; 1079-7114
DOI:
10.1103/PhysRevLett.116.186601
Keywords:
ROOM-TEMPERATURE; DEPENDENCE; ACCUMULATION; THICKNESS; FILMS; NIO
Version:
Final published version
Sponsors:
This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Science, under Award Grant No. DE-SC0009390. W. L. was supported in part by C-SPIN, one of six centers of STARnet, a SRC program sponsored by MARCO and DARPA. K. C. and S. Z. were supported by National Science Foundation under Grant No. ECCS-1404542. W. L. thanks Ssu-Yen Huang from National Taiwan University for fruitful discussions.
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevLett.116.186601

Full metadata record

DC FieldValue Language
dc.contributor.authorLin, Weiweien
dc.contributor.authorChen, Kaien
dc.contributor.authorZhang, Shufengen
dc.contributor.authorChien, C. L.en
dc.date.accessioned2016-06-24T22:32:21Z-
dc.date.available2016-06-24T22:32:21Z-
dc.date.issued2016-05-05-
dc.identifier.citationEnhancement of Thermally Injected Spin Current through an Antiferromagnetic Insulator 2016, 116 (18) Physical Review Lettersen
dc.identifier.issn0031-9007-
dc.identifier.issn1079-7114-
dc.identifier.doi10.1103/PhysRevLett.116.186601-
dc.identifier.urihttp://hdl.handle.net/10150/614754-
dc.description.abstractWe report a large enhancement of thermally injected spin current in normal metal (NM)/antiferromagnet (AF)/yttrium iron garnet (YIG), where a thin AF insulating layer of NiO or CoO can enhance the spin current from YIG to a NM by up to a factor of 10. The spin current enhancement in NM/AF/YIG, with a pronounced maximum near the Neel temperature of the thin AF layer, has been found to scale linearly with the spin-mixing conductance at the NM/YIG interface for NM = 3d, 4d, and 5d metals. Calculations of spin current enhancement and spin mixing conductance are qualitatively consistent with the experimental results.en
dc.description.sponsorshipThis work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Science, under Award Grant No. DE-SC0009390. W. L. was supported in part by C-SPIN, one of six centers of STARnet, a SRC program sponsored by MARCO and DARPA. K. C. and S. Z. were supported by National Science Foundation under Grant No. ECCS-1404542. W. L. thanks Ssu-Yen Huang from National Taiwan University for fruitful discussions.en
dc.language.isoenen
dc.publisherAMER PHYSICAL SOCen
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevLett.116.186601en
dc.rights© 2016 American Physical Societyen
dc.subjectROOM-TEMPERATUREen
dc.subjectDEPENDENCEen
dc.subjectACCUMULATIONen
dc.subjectTHICKNESSen
dc.subjectFILMSen
dc.subjectNIOen
dc.titleEnhancement of Thermally Injected Spin Current through an Antiferromagnetic Insulatoren
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Dept Physen
dc.identifier.journalPhysical Review Lettersen
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
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