Fresnel diffraction of spin waves
Journal Article
·
· Physical Review B
- Univ. San Francisco de Quito, Quito (Ecuador)
- Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Delaware, Newark, DE (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Univ. de Strasbourg, Strasbourg Cedex (France)
Here, the propagation of magnetostatic forward volume waves excited by a constricted coplanar waveguide is studied via inductive spectroscopy techniques. A series of devices consisting of pairs of submicrometer size antennae is used to perform a discrete mapping of the spin wave amplitude in the plane of a 30-nm thin YIG film. We found that the spin wave propagation remains well focused in a beam shape of width comparable to the constriction length and that the amplitude within the constriction displays oscillations, two features which are explained in terms of near-field Fresnel diffraction theory.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- Agence Nationale de la recherche (ANR); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1489408
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 14 Vol. 98; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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