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Körner, H. S. ; Stigloher, J. ; Back, C. H.

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.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitlePhysical Review B
PublisherAMER PHYSICAL SOC
Open Access TypeDue to SHERPA/RoMEO
Place of PublicationCOLLEGE PK
Volume96
Number of Issue or Book Chapter10
Date2017
Date of publication04 Feb 2020 10:39
InstitutionsPhysics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Chair Professor Back > Group Christian Back
Identification Number
ValueType
10.1103/PhysRevB.96.100401DOI
Keywords;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-391762
Item ID39176

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