Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 최창환 | - |
dc.date.accessioned | 2018-02-23T07:10:11Z | - |
dc.date.available | 2018-02-23T07:10:11Z | - |
dc.date.issued | 2011-08 | - |
dc.identifier.citation | METALS AND MATERIALS INTERNATIONAL; AUG 2011, 17, 4, p641-p647, 7p. | en_US |
dc.identifier.issn | 1598-9623 | - |
dc.identifier.uri | https://link.springer.com/article/10.1007%2Fs12540-011-0819-3 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/40459 | - |
dc.description.abstract | In this study, we have coated tin oxide (SnO2) nanowires with a Cu shell layer via the sputtering method and subsequently investigated the effects of thermal annealing. The annealing-induced changes in morphologies, microstructures, and compositions of the resulting core-shell nanowires were characterized by using scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), and energydispersive X-ray spectroscopy (EDX). The Cu shell layers were agglomerated to form clusters, which were mainly comprised of the Cu2O phase. For the first time, a hysteresis loop indicating weak ferromagnetism was observed from the pure SnO2 nanowires. Both the coercivity and the retentivity in the hysteresis loop were slightly increased by Cu-sputtering, indicating a very slight enhancement of ferromagnetism. Also, the ferromagnetic behavior was significantly enhanced by thermal annealing. We discuss the possible mechanisms of annealing-induced enhancement of ferromagnetism in the SiO2/Cu core-shell nanowires, which include the generation of Cu2O phase, Cu-doping into the SnO2 lattice, and the generation of oxygen vacancies in SnO2 core nanowires. | en_US |
dc.description.sponsorship | This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2011-0006268). | en_US |
dc.language.iso | en | en_US |
dc.publisher | KOREAN INST METALS MATERIALS, KIM BLDG 6TH FLOOR, SEOCHO-DAERO 56 GIL 38, SEOCHO-GU, SEOUL 137-881, SOUTH KOREA | en_US |
dc.subject | fibers | en_US |
dc.subject | annealing | en_US |
dc.subject | ferromagnetic materials | en_US |
dc.subject | sputtering | en_US |
dc.subject | transmission electron microscopy | en_US |
dc.subject | TEM | en_US |
dc.title | Annealing-induced enhancement of ferromagnetism in SnO(2)-core/Cu-shell coaxial nanowires | en_US |
dc.type | Article | en_US |
dc.relation.no | 4 | - |
dc.relation.volume | 17 | - |
dc.identifier.doi | 10.1007/s12540-011-0819-3 | - |
dc.relation.page | 641-647 | - |
dc.relation.journal | METALS AND MATERIALS INTERNATIONAL | - |
dc.contributor.googleauthor | Kim, Hyoun Woo | - |
dc.contributor.googleauthor | Na, Han Gil | - |
dc.contributor.googleauthor | Ahn, Jinho | - |
dc.contributor.googleauthor | Yoon, Chong Seung | - |
dc.contributor.googleauthor | Ham, Heon | - |
dc.contributor.googleauthor | Shim, Kwang Bo | - |
dc.contributor.googleauthor | Choi, Changhwan | - |
dc.contributor.googleauthor | Yang, Ju Chan | - |
dc.contributor.googleauthor | Lee, Chongmu | - |
dc.contributor.googleauthor | Kang, Inpil | - |
dc.relation.code | 2011216909 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | cchoi | - |
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