| dc.creator | Sercheli, MS | |
| dc.creator | Rettori, C | |
| dc.creator | Zanatta, AR | |
| dc.date | 2003 | |
| dc.date | NOV | |
| dc.date | 2014-11-18T11:09:13Z | |
| dc.date | 2015-11-26T16:54:21Z | |
| dc.date | 2014-11-18T11:09:13Z | |
| dc.date | 2015-11-26T16:54:21Z | |
| dc.date.accessioned | 2018-03-28T23:41:36Z | |
| dc.date.available | 2018-03-28T23:41:36Z | |
| dc.identifier | Physical Review B. American Physical Soc, v. 68, n. 17, 2003. | |
| dc.identifier | 1098-0121 | |
| dc.identifier | WOS:000186971600054 | |
| dc.identifier | 10.1103/PhysRevB.68.174418 | |
| dc.identifier | http://www.repositorio.unicamp.br/jspui/handle/REPOSIP/82404 | |
| dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/82404 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/82404 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1276830 | |
| dc.description | Amorphous silicon films doped with Y, La, Gd, Er, and Lu rare-earth elements (a-Si:RE) have been prepared by cosputtering and studied by means of electron-spin resonance (ESR) and dc magnetization. For comparison purposes the magnetic properties of laser-crystallized and hydrogenated a-Si:RE films were also studied. It was found that the rare-earth species are incorporated in the a-Si:RE films in the RE3+ form and that the RE doping depletes the neutral dangling bond (D-0) density. The reduction of D-0 density is significantly larger for the magnetic RE's (Gd3+ and Er3+) than for the nonmagnetic ones (Y3+, La3+, Lu3+). These results are interpreted in terms of an exchangelike interaction H(int)similar to-J(RE-DB)S(RE)S(DB) between the spin of the magnetic RE's and that of the D-0. All our Gd-doped Si films showed basically the same broad ESR Gd3+ resonance (DeltaH(pp)approximate to850 Oe) at gapproximate to2.01, suggesting the formation of a rather stable RE-Si complex in these films. | |
| dc.description | 68 | |
| dc.description | 17 | |
| dc.language | en | |
| dc.publisher | American Physical Soc | |
| dc.publisher | College Pk | |
| dc.publisher | EUA | |
| dc.relation | Physical Review B | |
| dc.relation | Phys. Rev. B | |
| dc.rights | aberto | |
| dc.source | Web of Science | |
| dc.subject | Aluminum-induced Crystallization | |
| dc.subject | Raman-scattering | |
| dc.subject | Thin-films | |
| dc.subject | Silicon | |
| dc.subject | Resonance | |
| dc.subject | Alloys | |
| dc.subject | Microcrystalline | |
| dc.title | Magnetic properties of amorphous Si films doped with rare-earth elements | |
| dc.type | Artículos de revistas | |
