Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.82.184408
DC FieldValue
dc.titleAnalysis of collective spin-wave modes at different points within the hysteresis loop of a one-dimensional magnonic crystal comprising alternative-width nanostripes
dc.contributor.authorTacchi, S.
dc.contributor.authorMadami, M.
dc.contributor.authorGubbiotti, G.
dc.contributor.authorCarlotti, G.
dc.contributor.authorGoolaup, S.
dc.contributor.authorAdeyeye, A.O.
dc.contributor.authorSingh, N.
dc.contributor.authorKostylev, M.P.
dc.date.accessioned2014-10-07T04:23:45Z
dc.date.available2014-10-07T04:23:45Z
dc.date.issued2010-11-05
dc.identifier.citationTacchi, S., Madami, M., Gubbiotti, G., Carlotti, G., Goolaup, S., Adeyeye, A.O., Singh, N., Kostylev, M.P. (2010-11-05). Analysis of collective spin-wave modes at different points within the hysteresis loop of a one-dimensional magnonic crystal comprising alternative-width nanostripes. Physical Review B - Condensed Matter and Materials Physics 82 (18) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.82.184408
dc.identifier.issn10980121
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/81961
dc.description.abstractThe Brillouin light-scattering technique has been applied to study collective spin waves in a dense array of dipolarly coupled Ni80 Fe20 stripes of alternating widths, during the magnetization reversal process. Both the saturated "ferromagnetic" state, where the magnetizations of wide and narrow stripes are parallel, and the "antiferromagnetic" state, characterized by an antiparallel alignment of the static magnetization in adjacent stripes, have been analyzed. The experimental data provide strong evidence of sustained collective excitations in the form of Bloch waves with permitted and forbidden magnonic energy bands. The measured frequencies as a function of the exchanged wave vector have been satisfactorily reproduced by numerical simulations which enabled us to calculate the spatial profiles of the Bloch waves, showing that some of the modes are preferentially localized in either the wide or the narrow stripes. We estimated the expected light-scattering cross section for each mode at different magnetic ground states, achieving a good agreement with the measured intensities. The alternating-width stripes system studied here represents a one-dimensional artificial magnonic crystal with a complex base and can be considered as a model system for reprogrammable dynamical response, where the band structure of collective spin waves can be tailored by changing the applied magnetic field. © 2010 The American Physical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1103/PhysRevB.82.184408
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1103/PhysRevB.82.184408
dc.description.sourcetitlePhysical Review B - Condensed Matter and Materials Physics
dc.description.volume82
dc.description.issue18
dc.description.page-
dc.description.codenPRBMD
dc.identifier.isiut000283841000004
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

72
checked on Oct 21, 2019

WEB OF SCIENCETM
Citations

72
checked on Oct 14, 2019

Page view(s)

152
checked on Oct 12, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.