ITP OpenIR  > SCI期刊论文
Li, FY; Li, YD; Kim, YB; Balents, L; Yu, Y; Chen, G; Chen, G (reprint author), Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China.; Chen, G (reprint author), Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China.; Chen, G (reprint author), Fudan Univ, Dept Phys, Ctr Field Theory & Particle Phys, Shanghai 200433, Peoples R China.; Chen, G (reprint author), Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China.
Weyl magnons in breathing pyrochlore antiferromagnets
Source PublicationNATURE COMMUNICATIONS
Language英语
AbstractFrustrated quantum magnets not only provide exotic ground states and unusual magnetic structures, but also support unconventional excitations in many cases. Using a physically relevant spin model for a breathing pyrochlore lattice, we discuss the presence of topological linear band crossings of magnons in antiferromagnets. These are the analogues of Weyl fermions in electronic systems, which we dub Weyl magnons. The bulk Weyl magnon implies the presence of chiral magnon surface states forming arcs at finite energy. We argue that such antiferromagnets present a unique example, in which Weyl points can be manipulated in situ in the laboratory by applied fields. We discuss their appearance specifically in the breathing pyrochlore lattice, and give some general discussion of conditions to find Weyl magnons, and how they may be probed experimentally. Our work may inspire a re-examination of the magnetic excitations in many magnetically ordered systems.
2016
Volume7Pages:12691
Subject AreaScience & Technology - Other Topics
DOIhttp://dx.doi.org/10.1038/ncomms12691
Indexed BySCI
Funding OrganizationStart-Up Fund of Fudan University ; Start-Up Fund of Fudan University ; Start-Up Fund of Fudan University ; Start-Up Fund of Fudan University ; Thousand-Youth-Talent Program of People's Republic of China ; Thousand-Youth-Talent Program of People's Republic of China ; Thousand-Youth-Talent Program of People's Republic of China ; Thousand-Youth-Talent Program of People's Republic of China ; NSERC ; NSERC ; NSERC ; NSERC ; DOE Office of Basic Energy Sciences [DE-FG02-08ER46524] ; DOE Office of Basic Energy Sciences [DE-FG02-08ER46524] ; DOE Office of Basic Energy Sciences [DE-FG02-08ER46524] ; DOE Office of Basic Energy Sciences [DE-FG02-08ER46524] ; 973 Program of MOST of China [2012CB821402] ; 973 Program of MOST of China [2012CB821402] ; 973 Program of MOST of China [2012CB821402] ; 973 Program of MOST of China [2012CB821402] ; NNSF of China [11174298, 11474061] ; NNSF of China [11174298, 11474061] ; NNSF of China [11174298, 11474061] ; NNSF of China [11174298, 11474061]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21544
CollectionSCI期刊论文
Corresponding AuthorChen, G (reprint author), Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China.; Chen, G (reprint author), Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China.; Chen, G (reprint author), Fudan Univ, Dept Phys, Ctr Field Theory & Particle Phys, Shanghai 200433, Peoples R China.; Chen, G (reprint author), Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China.
Recommended Citation
GB/T 7714
Li, FY,Li, YD,Kim, YB,et al. Weyl magnons in breathing pyrochlore antiferromagnets[J]. NATURE COMMUNICATIONS,2016,7:12691.
APA Li, FY.,Li, YD.,Kim, YB.,Balents, L.,Yu, Y.,...&Chen, G .(2016).Weyl magnons in breathing pyrochlore antiferromagnets.NATURE COMMUNICATIONS,7,12691.
MLA Li, FY,et al."Weyl magnons in breathing pyrochlore antiferromagnets".NATURE COMMUNICATIONS 7(2016):12691.
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