DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Yong Jae | ko |
dc.contributor.author | Kim, Chang Hyun | ko |
dc.contributor.author | Kim, Han Sung | ko |
dc.contributor.author | Lee, Wang Su | ko |
dc.contributor.author | Park, Seong-Hun | ko |
dc.contributor.author | Park, Jeunghee | ko |
dc.contributor.author | Bae, Seung Yong | ko |
dc.contributor.author | Kim, Bongsoo | ko |
dc.contributor.author | Lee, Hangil | ko |
dc.contributor.author | Kim, Jae-Young | ko |
dc.date.accessioned | 2013-03-07T18:32:45Z | - |
dc.date.available | 2013-03-07T18:32:45Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2008-07 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, v.20, no.14, pp.4694 - 4702 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/10203/90946 | - |
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.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | TEMPERATURE FERROMAGNETISM | - |
dc.subject | MAGNETIC SEMICONDUCTORS | - |
dc.subject | ELECTRONIC-PROPERTIES | - |
dc.subject | MNXGE1-X | - |
dc.subject | GE(111) | - |
dc.subject | GROWTH | - |
dc.subject | ALLOY | - |
dc.title | Ferromagnetic Ge1-xMx (M = Mn, Fe, and Co) nanowires | - |
dc.type | Article | - |
dc.identifier.wosid | 000257666300025 | - |
dc.identifier.scopusid | 2-s2.0-49249103329 | - |
dc.type.rims | ART | - |
dc.citation.volume | 20 | - |
dc.citation.issue | 14 | - |
dc.citation.beginningpage | 4694 | - |
dc.citation.endingpage | 4702 | - |
dc.citation.publicationname | CHEMISTRY OF MATERIALS | - |
dc.identifier.doi | 10.1021/cm7035635 | - |
dc.contributor.localauthor | Kim, Bongsoo | - |
dc.contributor.nonIdAuthor | Cho, Yong Jae | - |
dc.contributor.nonIdAuthor | Kim, Chang Hyun | - |
dc.contributor.nonIdAuthor | Kim, Han Sung | - |
dc.contributor.nonIdAuthor | Lee, Wang Su | - |
dc.contributor.nonIdAuthor | Park, Seong-Hun | - |
dc.contributor.nonIdAuthor | Park, Jeunghee | - |
dc.contributor.nonIdAuthor | Bae, Seung Yong | - |
dc.contributor.nonIdAuthor | Lee, Hangil | - |
dc.contributor.nonIdAuthor | Kim, Jae-Young | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | TEMPERATURE FERROMAGNETISM | - |
dc.subject.keywordPlus | MAGNETIC SEMICONDUCTORS | - |
dc.subject.keywordPlus | ELECTRONIC-PROPERTIES | - |
dc.subject.keywordPlus | MNXGE1-X | - |
dc.subject.keywordPlus | GE(111) | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | ALLOY | - |
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