Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sheu, Y. M. | en_US |
dc.contributor.author | Chang, Y. M. | en_US |
dc.contributor.author | Chang, C. P. | en_US |
dc.contributor.author | Li, Y. H. | en_US |
dc.contributor.author | Babu, K. R. | en_US |
dc.contributor.author | Guo, G. Y. | en_US |
dc.contributor.author | Kurumaji, T. | en_US |
dc.contributor.author | Tokura, Y. | en_US |
dc.date.accessioned | 2019-10-05T00:08:44Z | - |
dc.date.available | 2019-10-05T00:08:44Z | - |
dc.date.issued | 2019-08-30 | en_US |
dc.identifier.issn | 2160-3308 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevX.9.031038 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/152839 | - |
dc.description.abstract | On-demand spin orientation with a long polarized lifetime and an easily detectable signal is the ultimate goal for spintronics. However, there still exists a trade-off between controllability and stability of spin polarization, awaiting a significant breakthrough. Here, we demonstrate switchable optomagnet effects in (Fe1-xZnx)(2)Mo3O8, from which we can obtain tunable magnetization (spanning from -40% to 40% of a saturated magnetization) that is created from zero magnetization in the antiferromagnetic state without magnetic fields. It is accomplishable by utilizing circularly polarized laser pulses to excite spin-flip transitions in polar antiferromagnets that have no spin canting, traditionally hard to control without very strong magnetic fields. The spin controllability in (Fe1-xZnx)(2)Mo3O8 originates from its polar structure that breaks the crystal inversion symmetry, allowing distinct on-site d-d transitions for selective spin flip. By chemical doping, we exploit the phase competition between antiferromagnetic and ferrimagnetic states to enhance and stabilize the optomagnet effects, which result in long-lived photoinduced Kerr rotations. The present study creating switchable giant optomagnet effects in polar antiferromagnets sketches a new blueprint for the function of antiferromagnetic spintronics. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Magnetism | en_US |
dc.subject | Optics | en_US |
dc.subject | Spintronics | en_US |
dc.title | Picosecond Creation of Switchable Optomagnets from a Polar Antiferromagnet with Giant Photoinduced Kerr Rotations | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1103/PhysRevX.9.031038 | en_US |
dc.identifier.journal | PHYSICAL REVIEW X | en_US |
dc.citation.volume | 9 | en_US |
dc.citation.issue | 3 | en_US |
dc.citation.spage | 0 | en_US |
dc.citation.epage | 0 | en_US |
dc.contributor.department | 交大名義發表 | zh_TW |
dc.contributor.department | 電子物理學系 | zh_TW |
dc.contributor.department | National Chiao Tung University | en_US |
dc.contributor.department | Department of Electrophysics | en_US |
dc.identifier.wosnumber | WOS:000483352600001 | en_US |
dc.citation.woscount | 0 | en_US |
Appears in Collections: | Articles |