dc.creator | Garcia, FA | |
dc.creator | Garcia, DJ | |
dc.creator | Avila, MA | |
dc.creator | Vargas, JM | |
dc.creator | Pagliuso, PG | |
dc.creator | Rettori, C | |
dc.creator | Passeggi, MCG | |
dc.creator | Oseroff, SB | |
dc.creator | Schlottmann, P | |
dc.creator | Alascio, B | |
dc.creator | Fisk, Z | |
dc.date | 2009 | |
dc.date | AUG | |
dc.date | 2014-11-15T04:19:14Z | |
dc.date | 2015-11-26T17:35:55Z | |
dc.date | 2014-11-15T04:19:14Z | |
dc.date | 2015-11-26T17:35:55Z | |
dc.date.accessioned | 2018-03-29T00:18:16Z | |
dc.date.available | 2018-03-29T00:18:16Z | |
dc.identifier | Physical Review B. Amer Physical Soc, v. 80, n. 5, 2009. | |
dc.identifier | 1098-0121 | |
dc.identifier | WOS:000269638500007 | |
dc.identifier | 10.1103/PhysRevB.80.052401 | |
dc.identifier | http://www.repositorio.unicamp.br/jspui/handle/REPOSIP/78849 | |
dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/78849 | |
dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/78849 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1285747 | |
dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
dc.description | Electron-spin-resonance (ESR) measurements performed on the filled skutterudite system Ce1-xYbxFe4P12 (x less than or similar to 0.003) unequivocally reveal the coexistence of two Yb3+ resonances associated with sites of considerably different occupations and temperature behaviors. Detailed analysis of the ESR data suggests a scenario where the fraction of oversized (Fe2P3)(4) cages that host Yb ions are filled with a low occupation of on-center Yb3+ sites and a highly occupied T-dependent distribution of off-center Yb3+ sites. Analysis of the Yb-171(3+)(I=1/2) isotope hyperfine splittings reveal that these two sites are associated with a low (similar to 1 GHz) and a high (greater than or similar to 15 GHz) rattling frequency, respectively. Our findings introduce Yb3+ in T-h symmetry systems and use the Yb3+ ESR as a sensitive microscopic probe to investigate the Yb3+ ions dynamics. | |
dc.description | 80 | |
dc.description | 5 | |
dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
dc.description | DOE [DE-FG02-98ER45707] | |
dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
dc.description | DOE [DE-FG02-98ER45707] | |
dc.language | en | |
dc.publisher | Amer Physical Soc | |
dc.publisher | College Pk | |
dc.publisher | EUA | |
dc.relation | Physical Review B | |
dc.relation | Phys. Rev. B | |
dc.rights | aberto | |
dc.rights | http://publish.aps.org/authors/transfer-of-copyright-agreement | |
dc.source | Web of Science | |
dc.subject | cerium alloys | |
dc.subject | crystal symmetry | |
dc.subject | hyperfine interactions | |
dc.subject | iron alloys | |
dc.subject | isotope effects | |
dc.subject | paramagnetic resonance | |
dc.subject | phosphorus alloys | |
dc.subject | ytterbium alloys | |
dc.subject | Electron-spin Resonance | |
dc.subject | Absorption | |
dc.subject | Lafe4p12 | |
dc.subject | Metals | |
dc.subject | Fields | |
dc.title | Coexisting on-center and off-center Yb3+ sites in Ce1-xYbxFe4P12 skutterudites | |
dc.type | Artículos de revistas | |