Zobrazeno 1 - 10
of 1 361
pro vyhledávání: '"Fontes M"'
Autor:
Bufaiçal, L., Veiga, L. S. I., Mardegan, J. R. L., Pohlmann, T., Francoual, S., Dhesi, S. S., Fontes, M. B., Bittar, E. M.
Publikováno v:
Journal of Magnetism and Magnetic Materials 587, 171276 (2023)
Here, we report on the structural, electronic, and magnetic properties of a polycrystalline sample of the LaCaCoIrO$_6$ double-perovskite investigated by means of synchrotron x-ray powder diffraction, x-ray absorption spectroscopy, and x-ray magnetic
Externí odkaz:
http://arxiv.org/abs/2310.01114
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 27, Iss 4, Pp 765-772 (2003)
O resultado mais acurado da análise textural depende da completa dispersão da amostra de solo e da manutenção da estabilidade da fase dispersa. Alguns Latossolos podem apresentar problemas de dispersão, graças à presença de microagregados de
Externí odkaz:
https://doaj.org/article/3b63dbc44c99492885bcacc46d037ff1
Autor:
Sousa, M. A., Honorato, A., Liu, Liying, Merino, I. L. C., Pessoa, M. S., Morais, P. C., Litterst, F. J., Passamani, E. C., Fontes, M. B., Baggio-Saitovitch, E.
Publikováno v:
Journal of Applied Physics; 4/7/2024, Vol. 135 Issue 13, p1-7, 7p
Autor:
Bufaiçal, L., Sadrollahi, E., Litterst, F. J., Rigitano, D., Granado, E., Coutrim, L. T., Araújo, E. B., Fontes, M. B., Baggio-Saitovitch, E., Bittar, E. M.
Publikováno v:
Physical Review B 102, 024436 (2020)
The delicate balance between spin-orbit coupling, Coulomb repulsion and crystalline electric field interactions observed in Ir-based oxides is usually manifested as exotic magnetic behavior. Here we investigate the evolution of the exchange coupling
Externí odkaz:
http://arxiv.org/abs/2007.15318
Autor:
Veiga, L. S. I., Mardegan, J. R. L., Zimmermann, M. v., Maimone, D. T., Carneiro, F. B., Fontes, M. B., Strempfer, J., Granado, E., Pagliuso, P. G., Bittar, E. M.
Publikováno v:
Phys. Rev. B 101, 104511 (2020)
We explore the evolution of the structural phase transition of $\rm{(Sr, Ca)_3Ir_4Sn_{13}}$, a model system to study the interplay between structural quantum criticality and superconductivity, by means of high-energy x-ray diffraction measurements at
Externí odkaz:
http://arxiv.org/abs/1911.08457
Autor:
Coutrim, L. T., Rigitano, D., Macchiutti, C., Mori, T. J. A., Lora-Serrano, R., Granado, E., Sadrollahi, E., Litterst, F. J., Fontes, M. B., Baggio-Saitovitch, E., Bittar, E. M., Bufaiçal, L.
Publikováno v:
Physical Review B 100, 054428 (2019)
In the zero-field-cooled exchange bias (ZEB) effect the unidirectional magnetic anisotropy is set at low temperatures even when the system is cooled in the absence of external magnetic field. La$_{1.5}$Sr$_{0.5}$CoMnO$_{6}$ stands out as presenting t
Externí odkaz:
http://arxiv.org/abs/1909.05287
Autor:
Mendonça-Ferreira, L., Carneiro, F. B., Fontes, M. B., Baggio-Saitovitch, E., Veiga, L. S. I., Mardegan, J. R. L., Strempfer, J., Piva, M. M., Pagliuso, P. G., Reis, R. D. dos, Bittar, E. M.
Publikováno v:
Journal of Alloys and Compounds 773, 34 (2019)
La3Co4Sn13 is a superconducting material with transition temperature at Tc = 2.70 K, which presents a superlattice structural transition at T* ~ 150 K, a common feature for this class of compounds. However, for this material, it is not clear that at
Externí odkaz:
http://arxiv.org/abs/1804.03215
Autor:
Nascimento, M. P., Continentino, M. A., López, A., de Leo, Ana, Freitas, D. C., J., J. Larrea, Enderlein, Carsten, Oliveira, J. F., Baggio-Saitovitch, E., Pospísil, Jirí, Fontes, M. B.
Publikováno v:
Phys. Rev. B 98, 174431 (2018)
We present an extensive study of the ferromagnetic heavy fermion compound U$_4$Ru$_7$Ge$_6$. Measurements of electrical resistivity, specific heat and magnetic properties show that U$_4$Ru$_7$Ge$_6$ orders ferromagnetically at ambient pressure with a
Externí odkaz:
http://arxiv.org/abs/1804.02420
Autor:
Rodrigues, M. A., Teiga-Teixeira, P., Teiga-Teixeira, E., Esteves, A., Coelho, A. C., Fontes, M. C.
Publikováno v:
Veterinarska Stanica; 2024, Vol. 55 Issue 4, p357-373, 17p
Publikováno v:
In Revista Española de Medicina Nuclear e Imagen Molecular (English Edition) January-February 2019 38(1):29-37