Ferromagnetic Ge1−xMx (M = Mn, Fe, and Co) Nanowires
DC Field | Value | Language |
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dc.contributor.author | Cho, Yong Jae | - |
dc.contributor.author | Kim, Chang Hyun | - |
dc.contributor.author | Kim, Han Sung | - |
dc.contributor.author | Lee, Wang Su | - |
dc.contributor.author | Park, Seong-Hun | - |
dc.contributor.author | Park, Jeunghee | - |
dc.contributor.author | Bae, Seung Yong | - |
dc.contributor.author | Kim, Bongsoo | - |
dc.contributor.author | Lee, Hangil | - |
dc.contributor.author | Kim, Jae-Young | - |
dc.date.accessioned | 2022-04-19T11:03:48Z | - |
dc.date.available | 2022-04-19T11:03:48Z | - |
dc.date.issued | 2008-07 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/148196 | - |
dc.description.abstract | We synthesized Ge and Ge1−xMx (M = Mn, Co, and Fe, x ≤ 0.4) nanowires using the thermal vapor transport method. All of the nanowires consisted of single-crystalline Ge nanocrystals grown uniformly with the [111] direction. High-resolution X-ray diffraction showed no metal cluster formation for any of the Ge1−xMx nanowires, and the reduction of the lattice constant for the Mn-substituted nanowires. X-ray absorption spectroscopy and X-ray magnetic circular dichroism measurements revealed that the Mn2+ ions preferentially occupy the tetrahedral sites, substituting for Ge. The magnetic moment of the Mn ions reaches a maximum for x = 0.1, which is much larger than that of the Fe or Co ions. The magnetic hysteresis confirms the room-temperature ferromagnetism of the Ge1−xMnx nanowires, which is also maximized at x = 0.1. We suggest that the Mn ions produce dopant−acceptor hybridization with host defects in the p-type Ge nanowires. The Mn substitution is more effective to form significant ferromagnetic Ge nanowires, compared to the Fe or Co substitution. | - |
dc.format.extent | 9 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ACS | - |
dc.title | Ferromagnetic Ge1−xMx (M = Mn, Fe, and Co) Nanowires | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1021/cm7035635 | - |
dc.identifier.scopusid | 2-s2.0-49249103329 | - |
dc.identifier.wosid | 000257666300025 | - |
dc.identifier.bibliographicCitation | Chemistry of Materials, v.20, no.14, pp 4694 - 4702 | - |
dc.citation.title | Chemistry of Materials | - |
dc.citation.volume | 20 | - |
dc.citation.number | 14 | - |
dc.citation.startPage | 4694 | - |
dc.citation.endPage | 4702 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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