Propagation characteristics of the magnetostatic surface wave in the YBCO-YIG film-layered structure

Author

Tsutsumi, Makoto ; Fukusako, Takeshi ; Yoshida, Shigeo

Author_Institution

Fac. of Eng. & Design, Kyoto Inst. of Technol., Japan

Volume

44

Issue

8

fYear

1996

fDate

8/1/1996 12:00:00 AM

Firstpage

1410

Lastpage

1415

Abstract

Propagation characteristics of the magnetostatic surface wave (MSSW) in a YBa₂Cu₃O_7-x (YBCO)-yttrium iron garnet (YIG) multilayered structure are investigated. Effects of the superconductor on the MSSW are discussed with regard to the dispersion characteristics of both the phase and attenuation constants as a function of the air gap, between YIG and YBCO, taking into consideration the magnetic line-width of the YIG film. It was found that the nonreciprocity of MSSW is enhanced significantly by the superconductivity and depends on the magnetic line-width of the YIG film. To examine the effect of a YBCO on the MSSW propagation, experiments are carried out using a commercially available YIG film. Magnetic losses at low temperature are briefly discussed with experimentally observed nonreciprocity

Keywords

barium compounds; dispersion (wave); garnets; high-temperature superconductors; magnetic leakage; magnetostatic surface waves; superconducting microwave devices; superconducting thin films; waveguide theory; yttrium compounds; HTS film; HTSC; MSSW propagation; YBCO-YIG film-layered structure; YBa₂Cu₃O_7-x; YBaCuO-YFe5O12; YBaCuO-YIG; air gap; attenuation constant; dispersion characteristics; low temperature; magnetic line-width; magnetic losses; magnetostatic surface wave; multilayered structure; nonreciprocity; phase constant; propagation characteristics; superconductor film; Attenuation; Dispersion; Garnets; Iron; Magnetic films; Magnetostatic waves; Superconducting films; Superconducting magnets; Surface waves; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.536023

Filename

536023