Submicron Y3Fe5O12 Film Magnetostatic Wave Band Pass Filters
2009 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 105, no 3Article in journal (Refereed) Published
Thin Y3Fe5O12 (YIG) films were pulsed laser deposited onto Gd3Ga5O12 (111) and (001) substrates. Processing conditions were optimized to obtain compressively strained films with a ferromagnetic resonance linewidth at 9 GHz as narrow as 0.9 Oe and high uniaxial magnetic anisotropy H-u=-880 Oe. Several designs of magnetostatic surface wave (MSSW) bandpass filters were fabricated and tested: 0.45 and 0.22 mu m thick YIG films lain on transducers alumina board and with microstripe transducers defined directly onto YIG film, with effective antenna areal sizes of 2 and 0.4 mm(2). The MSSW filter with 2 mm(2) antenna shows, at 7.5 GHz, insertion loss -9 dB and a resonant -3 dB bandwidth as narrow as 12.5 MHz.
Place, publisher, year, edition, pages
2009. Vol. 105, no 3
band-pass filters, ferromagnetic resonance, magnetic anisotropy, magnetic thin films, magnetostatic surface waves, magnetostatic wave, devices, pulsed laser deposition, yttrium compounds, yttrium-iron-garnet, pulsed-laser deposition, ferromagnetic-resonance, yig-films
IdentifiersURN: urn:nbn:se:kth:diva-18178DOI: 10.1063/1.3075816ISI: 000263409700072ScopusID: 2-s2.0-60449106985OAI: oai:DiVA.org:kth-18178DiVA: diva2:336224
QC 201005252010-08-052010-08-052011-11-22Bibliographically approved