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Excitation and tailoring of diffractive spin-wave beams in NiFe using nonuniform microwave antennas
Article
Körner, H. S., Stigloher, J. and Back, C. H.
(2017)
Excitation and tailoring of diffractive spin-wave beams in NiFe using nonuniform microwave antennas.
Physical Review B 96 (10).
DOI to cite this document: 10.5283/epub.39176
Abstract
We experimentally demonstrate by time-resolved scanning magneto-optical Kerr microscopy the possibility to locally excite multiple spin-wave beams in the dipolar-dominated regime in metallic NiFe films. For this purpose we employ differently shaped nonuniform microwave antennas consisting of several coplanar waveguide sections different in size, thereby adapting an approach for the generation of ...
We experimentally demonstrate by time-resolved scanning magneto-optical Kerr microscopy the possibility to locally excite multiple spin-wave beams in the dipolar-dominated regime in metallic NiFe films. For this purpose we employ differently shaped nonuniform microwave antennas consisting of several coplanar waveguide sections different in size, thereby adapting an approach for the generation of spin-wave beams in the exchange-dominated regime suggested by Gruszecki et al. [Sci. Rep. 6, 22367 (2016)]. The occurring spin-wave beams are diffractive and we show that the width of the beam and its widening as it propagates can be tailored by the shape and the length of the nonuniformity. Moreover, the propagation direction of the diffractive beams can be manipulated by changing the bias field direction.
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| Item type | Article | ||||
| Journal or Publication Title | Physical Review B | ||||
| Publisher | AMER PHYSICAL SOC | ||||
| Open Access Type | Due to SHERPA/RoMEO | ||||
| Place of Publication | COLLEGE PK | ||||
| Volume | 96 | ||||
| Number of Issue or Book Chapter | 10 | ||||
| Date | 2017 | ||||
| Date of publication | 04 Feb 2020 10:39 | ||||
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Chair Professor Back > Group Christian Back | ||||
| Identification Number |
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| Keywords | ; | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-391762 | ||||
| Item ID | 39176 |
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