Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김은규 | - |
dc.date.accessioned | 2017-04-21T02:15:08Z | - |
dc.date.available | 2017-04-21T02:15:08Z | - |
dc.date.issued | 2015-08 | - |
dc.identifier.citation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v. 67, NO 3, Page. 541-546 | en_US |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.issn | 1976-8524 | - |
dc.identifier.uri | https://link.springer.com/article/10.3938/jkps.67.541 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/26864 | - |
dc.description.abstract | GaN:Mn epilayers were grown on Al2O3 substrate by using molecular beam epitaxy (MBE). Xray diffraction (XRD) data showed intrinsic GaMnN and precipitates including MnGa and MnN. PL transitions (e, Mn) and (D, Mn) related to Mn were remarkably activated. Clear ferromagnetic hysteresis loops were obtained in both samples, which means a good formation of ferromagnetic coupling. The M-T curves revealed a curie temperature (T (c) ) of 140 similar to 170 K which is intrinsic to GaMnN and a Tc of above 300 K which is due to the MnGa and the MnN precipitates. The samples clearly displayed a magnetic resonance at a field of around 200 - 400 mT. Electron spin resonance (ESR) data showed that the shift of (H (center) ) (i.e., H (center) = 337 - H (center) [mT]) were greater than 20 mT for samples, and the appearance of a Hcenter with a positive H (center) is indicative of the samples having obvious ferromagnetism. The incorporated Mn ions are in a 2+ ionic state (i.e., Mn2+) because Mn2+ with a spin state of S = 5/2 typically exhibits a magnetic resonance with g a parts per thousand 2 when Mn is doped into semiconductors. | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea (NRF) grant funded by Ministry of Education, Science and Technology (MEST) (No. NRF-2014R1A2A2A01007718, No. 2014-066298, NRF-2014R1A2A1A11053936, and 2013R1A1A2008875,) and by the Quntum-functional Research Center (QSRC) of Dongguk University and supported from the KIST institutional program, including the Dream Project, the Converging Research Center Program through the MEST (2012K001280) and the GRL Program. | en_US |
dc.language.iso | en | en_US |
dc.publisher | KOREAN PHYSICAL SOC | en_US |
dc.subject | GaMnN | en_US |
dc.subject | Ferromagnetic semiconductor | en_US |
dc.subject | Molecular beam epitaxy | en_US |
dc.subject | Electron Spin Resonance | en_US |
dc.title | Relevant characteristics of undoped GaMnN grown by using molecular beam epitaxy | en_US |
dc.type | Article | en_US |
dc.relation.no | 3 | - |
dc.relation.volume | 67 | - |
dc.identifier.doi | 10.3938/jkps.67.541 | - |
dc.relation.page | 541-546 | - |
dc.relation.journal | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.contributor.googleauthor | Lee, J. W. | - |
dc.contributor.googleauthor | Shon, Yoon | - |
dc.contributor.googleauthor | Subramaniam, N. G. | - |
dc.contributor.googleauthor | Park, C. S. | - |
dc.contributor.googleauthor | Kim, E. K. | - |
dc.contributor.googleauthor | Im, Hyunsik | - |
dc.contributor.googleauthor | Kim, H. S. | - |
dc.relation.code | 2015000007 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF PHYSICS | - |
dc.identifier.pid | ek-kim | - |
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