Kim, Woochul Kang, Hee Jae Noh, Sam Kyu Song, Jonghan Kim, Chul Sung 2024-01-21T01:31:18Z 2024-01-21T01:31:18Z 2021-09-05 2007-03 0304-8853 https://pubs.kist.re.kr/handle/201004/134596 The structural and optical properties of Co ion-implanted GaN were investigated by various measurements. HRXRD, TEM, and SADP results did not show any peaks associated with second phase formation. XPS depth measurements showed the metallic Co 2p core levels for 700-900 degrees C annealed-samples. From XPS results, it could be explained that magnetic property of our. lms originated from Co or CoGa magnetic clusters. The PL spectra obtained at 10K display a clear intensity modulation, indicating that the optical interference effect occurs in the layers. (C) 2006 Elsevier B.V. All rights reserved. English ELSEVIER Magnetic clusters in Co ion-implanted GaN Article 10.1016/j.jmmm.2006.11.034 1 JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.310, no.2, pp.E729 - E731 JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310 2 E729 E731 scie scopus 000247720400372 2-s2.0-33847679690 Materials Science, Multidisciplinary Physics, Condensed Matter Materials Science Physics Article ion implantation magnetic semiconductor