| dc.creator | Martinho H. | |
| dc.creator | Rettori C. | |
| dc.creator | Huber D.L. | |
| dc.creator | Mitchell J.F. | |
| dc.creator | Oseroff S.B. | |
| dc.date | 2004 | |
| dc.date | 2015-06-26T14:23:55Z | |
| dc.date | 2015-11-26T14:12:34Z | |
| dc.date | 2015-06-26T14:23:55Z | |
| dc.date | 2015-11-26T14:12:34Z | |
| dc.date.accessioned | 2018-03-28T21:13:14Z | |
| dc.date.available | 2018-03-28T21:13:14Z | |
| dc.identifier | | |
| dc.identifier | Journal Of Magnetism And Magnetic Materials. , v. 272-276, n. III, p. 1736 - 1737, 2004. | |
| dc.identifier | 3048853 | |
| dc.identifier | 10.1016/j.jmmm.2003.12.735 | |
| dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-23044447923&partnerID=40&md5=43b20c9a046566906d622ee904f28b36 | |
| dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/94294 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/94294 | |
| dc.identifier | 2-s2.0-23044447923 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1242043 | |
| dc.description | We have studied the ab-plane Raman-active phonons of the bilayered magnetic manganite La2-2xSr1+2xMn2O 7 for x = 0.30 and 0.50. The Raman response was deconvoluted to seven modes in both cases and their symmetries and T-dependence analyzed. We found that the T-dependence of the linewidth and frequency of almost phonons follows the two-phonon anharmonic decay and the usual Grüneisen behavior, respectively, with exception of the 1000 cm-1 mode for x = 0.30 that softens ∼ 150 cm-1 below Tc due to their strong spin-phonon coupling. We also notice that some modes for x = 0.50 before associated to two- and three-phonons Raman process appeared to us as being one-phonon Raman peaks. © 2003 Elsevier B.V. All rights reserved. | |
| dc.description | 272-276 | |
| dc.description | III | |
| dc.description | 1736 | |
| dc.description | 1737 | |
| dc.description | Martinho, H., (2003) Phys. Rev. B, 67, p. 214428 | |
| dc.description | Pantoja, A.E., (2001) Phys. Rev. B, 63, p. 132406 | |
| dc.description | Argyriou, D.N., (1999) Phys. Rev. B, 59, p. 8695 | |
| dc.description | Martinho, H., (2002) Physica B, 320, p. 40 | |
| dc.language | en | |
| dc.publisher | | |
| dc.relation | Journal of Magnetism and Magnetic Materials | |
| dc.rights | fechado | |
| dc.source | Scopus | |
| dc.title | Phonons In The Bilayered Magnetic Manganite La2-2xsr 1+2xmn2o7 (x = 0.30, 0.50) | |
| dc.type | Actas de congresos | |
