| dc.creator | Foglio M.E. | |
| dc.creator | Barberis G.E. | |
| dc.date | 2004 | |
| dc.date | 2015-06-26T14:24:14Z | |
| dc.date | 2015-11-26T14:13:20Z | |
| dc.date | 2015-06-26T14:24:14Z | |
| dc.date | 2015-11-26T14:13:20Z | |
| dc.date.accessioned | 2018-03-28T21:14:03Z | |
| dc.date.available | 2018-03-28T21:14:03Z | |
| dc.identifier | | |
| dc.identifier | Physica B: Condensed Matter. , v. 354, n. 1-4 SPEC. ISS., p. 35 - 38, 2004. | |
| dc.identifier | 9214526 | |
| dc.identifier | 10.1016/j.physb.2004.09.014 | |
| dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-10644243346&partnerID=40&md5=2cca7f3e01c2351ffd21568f174dd30c | |
| dc.identifier | http://www.repositorio.unicamp.br/handle/REPOSIP/94385 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/94385 | |
| dc.identifier | 2-s2.0-10644243346 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1242247 | |
| dc.description | In this work we calculate the thermopower of Tl2Mn 2O7, together with its static resistivity and dynamical conductivity. This compound exhibits colossal magnetoresistance, which is not adequately explained by the double-exchange mechanism. We use Hubbard operators to reformulate a previous model of Ventura and Alascio that describes the 3d orbitals of Mn with two magnetic configurations, hybridized with a conduction band associated to the Tl. We reformulate a previous treatment to obtain approximate one-electron green's functions (GF) for the model. We have employed these GF to calculate the properties mentioned above for several values of the system parameters and obtained a qualitative agreement with the experimental results. © 2004 Elsevier B.V. All rights reserved. | |
| dc.description | 354 | |
| dc.description | 1-4 SPEC. ISS. | |
| dc.description | 35 | |
| dc.description | 38 | |
| dc.description | Ventura, C.I., Alascio, B.R., (1997) Phys. Rev. B, 56, p. 14533 | |
| dc.description | Imai, (2000) Phys. Rev. B, 62, p. 12190 | |
| dc.description | Shimakawa, Y., (1997) Phys. Rev. B, 55, p. 6399 | |
| dc.description | Okamura, (2001) Phys. Rev. B, 64, p. 180409 | |
| dc.description | Foglio, M.E., Figueira, M.S., (1999) Phys. Rev. B, 60, p. 11361 | |
| dc.description | Foglio, M.E., Figueira, M.S., (2000) Phys. Rev. B, 62, p. 7882 | |
| dc.description | Schweitzer, H., Czycholl, G., (1991) Phys. Rev. Lett., 67, p. 3724 | |
| dc.description | Foglio, M.E., Barberis, G.E., (2004) J. Magn. Magn. Mat., , Available on-line 13 April 2004 | |
| dc.language | en | |
| dc.publisher | | |
| dc.relation | Physica B: Condensed Matter | |
| dc.rights | fechado | |
| dc.source | Scopus | |
| dc.title | Thermopower Of An Intermediate Valence Model Of Tl2mn 2o7 | |
| dc.type | Actas de congresos | |
