DC Field | Value | Language |
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dc.date.accessioned | 2016-04-01T08:54:25Z | - |
dc.date.available | 2016-04-01T08:54:25Z | - |
dc.date.issued | 2009-03 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS | - |
dc.identifier.citation | v.21 | - |
dc.identifier.citation | no.6 | - |
dc.identifier.citation | pp.1137-1143 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.other | 2009-OAK-0000016495 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/29028 | - |
dc.description.abstract | Ga1-xMnxAs nanowires were synthesized with finely controlled Mn contents (x = 0, 0.01, 0.02, 0.03, and 0.05) by the vapor transport method. They consisted of single-crystalline GaAs nanocrystals (avg. diameter = 60 nm) grown along the [111] direction. The Mn doping decreases the lattice constant, most significantly at x approximate to 0.03. X-ray pholoelectron spectroscopy revealed that as the Mn content increases, the binding energy of Ga 2p shifts to a higher energy, which can be correlated with the hybridization between the Mn2+ ions and the holes. X-ray absorption spectroscopy and X-ray magnetic circular dichroism confirmed that the Mn2+ ions substitute into the tetrahedrally coordinated Ga sites and that the magnetic moment is maximized at x = 0.03, where the lattice constant is minimized and the binding energy of Ga 2p is maximized. The magnetization measurement revealed that all of these nanowires exhibited room-temperature ferromagnetic behavior, which is also observed most significantly for x approximate to 0.03. | - |
dc.description.statementofresponsibility | X | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | SEMICONDUCTOR | - |
dc.subject | GAAS | - |
dc.subject | (GA,MN)AS | - |
dc.subject | SPINTRONICS | - |
dc.subject | INJECTION | - |
dc.subject | GROWTH | - |
dc.title | Room-Temperature Ferromagnetic Ga1-xMnAs (x <= 0.05) Nanowires: Dependence of Electronic Structures and Magnetic Properties on Mn Content | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/CM8033388 | - |
dc.relation.volume | 21 | - |
dc.relation.issue | 6 | - |
dc.relation.startpage | 1137 | - |
dc.relation.lastpage | 1143 | - |
dc.publisher.location | US | - |
dc.relation.journal | CHEMISTRY OF MATERIALS | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.docType | Article | - |
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