| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | J8LNKAN8RW/34BF465 |
| Repository | dpi.inpe.br/plutao@80/2008/12.04.13.32 |
| Last Update | 2013:08.20.17.41.41 (UTC) administrator |
| Metadata Repository | dpi.inpe.br/plutao@80/2008/12.04.13.32.10 |
| Metadata Last Update | 2018:06.05.00.20.10 (UTC) administrator |
| Secondary Key | INPE--PRE/ |
| DOI | 10.1103/PhysRevB.78.134423 |
| ISSN | 1098-0121 |
| Label | lattes: 0875527722518904 3 DíazGrAbRaChHe:2008:MaReXr |
| Citation Key | DíazGrAbRaChHe:2008:MaReXr |
| Title | Magnetic resonant x-ray diffraction study of europium telluride  |
| Project | CNPq (142292/2004-4); FAPESP (2005/05194-1). |
| Year | 2008 |
| Access Date | 2024, May 01 |
| Type of Work | journal article |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 255 KiB |
| 2. Context | |
| Author | 1 Díaz, B. 2 Granado, E. 3 Abramof, Eduardo 4 Rappl, Paulo Henrique de Oliveira 5 Chitta, V. A. 6 Henriques, A. B. |
| Group | 1 2 3 LAS-CTE-INPE-MCT-BR 4 LAS-CTE-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto de Física “Gleb Wataghin”, UNICAMP 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto de Física, Universidade de São Paulo 6 Instituto de Física, Universidade de São Paulo |
| Author e-Mail Address | 1 bdiazmoreno@gmail.com 2 3 abramof@las.inpe.br 4 rappl@las.inpe.br |
| e-Mail Address | abramof@las.inpe.br |
| Journal | Physical Review B |
| Volume | 78 |
| Number | 134423 |
| Pages | 1-6 |
| History (UTC) | 2008-12-04 16:12:45 :: lattes -> simone :: 2008-12-17 15:59:59 :: simone -> administrator :: 2010-05-12 02:53:18 :: administrator -> banon :: 2010-05-14 13:48:45 :: banon -> simone :: 2010-07-07 18:39:00 :: simone -> banon :: 2012-09-27 17:58:20 :: banon -> administrator :: 2008 2018-06-05 00:20:10 :: administrator -> marciana :: 2008 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | difração magnética de raios x ressonante ordenamento magnético telureto de európio |
| Abstract | Here we use magnetic resonant x-ray diffraction to study the magnetic order in a 1.5 m EuTe film grown on (111) BaF_2 by molecular-beam epitaxy. At Eu LII and LIII absorption edges, a resonant enhancement of more than two orders was observed for the sigma →pi' diffracted intensity at half-order reciprocal-lattice points, consistent with the magnetic character of the scattering. We studied the evolution of the (1/2 1/2 1/2) magnetic reflection with temperature. When heating toward the Neel temperature (T_N), the integrated intensity decreased monotonously and showed no hysteresis upon cooling again, indicating a second-order phase transition. A power-law fit to the magnetization versus temperature curve yielded T_N=9.99(1) K and a critical exponent beta=0.36(1), which agrees with the renormalization theory results for three-dimensional Heisenberg magnets. The fits to the sublattice magnetization dependence with temperature, disregarding and considering fourth-order exchange interactions, evidenced the importance of the latter for a correct description of magnetism in EuTe. A value of 0.009 was found for the (2j_1+ j_2)/J_2 ratio between the Heisenberg J_2 and fourth-order j_1,2 exchange constants. The magnetization curve exhibited a round-shaped region just near T_N accompanied by an increase in the magnetic peak width, which was attributed to critical scattering above T_N. The comparison of the intensity ratio between the (1/2 1/2 1/2) and the (1 1/2 1 1/2 1 1/2) magnetic reflections proved that the Eu^2+ spins align within the (111) planes, and the azimuthal dependence of the (1/2 1/2 1/2) magnetic peak is consistent with the model of equally populated S domains. |
| Area | FISMAT |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAS > Magnetic resonant x-ray... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/J8LNKAN8RW/34BF465 |
| zipped data URL | http://urlib.net/zip/J8LNKAN8RW/34BF465 |
| Language | en |
| Target File | PhysRevB.78.134423.pdf |
| User Group | administrator banon lattes marciana simone |
| Reader Group | administrator marciana |
| Visibility | shown |
| Archiving Policy | allowpublisher allowfinaldraft |
| Read Permission | allow from all |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ESR3H2 |
| Citing Item List | sid.inpe.br/bibdigital/2013/09.24.19.30 1 |
| Dissemination | WEBSCI; PORTALCAPES. |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn lineage mark mirrorrepository month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress resumeid rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |