Kim, YH Kim, JS Kim, SI Levy, M 2024-01-21T08:14:15Z 2024-01-21T08:14:15Z 2021-09-03 2003-09 0374-4884 https://pubs.kist.re.kr/handle/201004/138289 Epitaxial films of Bi-substituted yttrium iron garnet (BixY3-xFe5O12, BiYIG) have been grown on (111) gadolinium-gallium-garnet substrates, Gd3Ga5O12, by using rf magnetron sputtering. As the film thickness is increased, the film structure varies from a single layer to a double layer due to the stress that develops in the films. A film with a thickness below some critical value has a single layer, which is in a compressive stress state due to the lattice-constant mismatch between the film and the substrate. A film with a thickness above some critical value has a double layer: lower and upper layers. The former is in a compressive stress state like a single-layer film; the latter is unstrained due to the stress relief provided by the formation of misfit dislocations. All the BiYIG films studied here exhibit granular-like surface features with grain sizes of about 50 similar to 200 nm and have surface roughnesses of 0.65 similar to 2.5 urn. The BiYIG films also have in-plane magnetic anisotropy, which is advantageous in the fabrication of planar waveguides. English KOREAN PHYSICAL SOC CHEMICAL VAPOR-DEPOSITION PULSED-LASER DEPOSITION THIN-FILMS MAGNETOOPTIC PROPERTIES ENHANCEMENT Epitaxial growth and properties of Bi-substituted yttrium-iron-garnet films grown on (111) gadolinium-gallium-garnet substrates by using rf magnetron sputtering Article 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.43, no.3, pp.400 - 405 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 43 3 400 405 scie scopus kci 000185231300015 2-s2.0-0141481885 Physics, Multidisciplinary Physics Article CHEMICAL VAPOR-DEPOSITION PULSED-LASER DEPOSITION THIN-FILMS MAGNETOOPTIC PROPERTIES ENHANCEMENT bi-substituted yttrium iron garnet rf sputtering epitaxial growth