Zobrazeno 1 - 10
of 11
pro vyhledávání: '"E J R Plaza"'
Autor:
Fabiana Cristina Nascimento, M.C. Pereira, Sergio Gama, A. I. C. Persiano, Lisandro Pavie Cardoso, M. T. Raposo, J.C.P. Campoy, José Domingos Fabris, E. J. R. Plaza, Adelino A. Coelho
Publikováno v:
Journal of Magnetism and Magnetic Materials. 316:368-371
We report a study about the structural properties of polycrystalline samples of nominal composition Gd 5 Ge 2 (Si 1− x Sn x ) 2 ( x =0.23, 0.40) that closely influence their physical behavior particularly related to electric resistivity and magneto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31889861718885324807cf26bff0d72f
https://doi.org/10.1016/j.jmmm.2007.03.023
https://doi.org/10.1016/j.jmmm.2007.03.023
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 26:2497-2499
We present a study of magnetization and magnetocaloric effect for the SmMnO3 compound. This compound was synthesized by combustion reaction and its magnetic and structural properties studied by X-ray powder diffraction (XRD) and magnetization (M) mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcd5071fed30e08162ba91ebfda427b0
https://doi.org/10.1007/s10948-012-1727-6
https://doi.org/10.1007/s10948-012-1727-6
Autor:
J.C.P. Campoy, E. J. R. Plaza
Publikováno v:
Physical Review B. 75
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e61e8f83995b359d15808234c7c0f96e
https://doi.org/10.1103/physrevb.75.174419
https://doi.org/10.1103/physrevb.75.174419
Publikováno v:
Physical Review B. 74
The heat capacity ${C}_{P}(T)$ of the ferromagnetic compounds $R{\mathrm{Al}}_{2}$ $(R=\mathrm{Pr},\mathrm{Nd},\mathrm{Tb},\mathrm{Dy},\mathrm{Ho},\mathrm{Er})$ was measured at zero and applied magnetic field of $5\phantom{\rule{0.3em}{0ex}}\mathrm{T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::792a526805d28ed6e4b01b06aa242f2d
https://doi.org/10.1103/physrevb.74.134410
https://doi.org/10.1103/physrevb.74.134410
Autor:
P.J. von Ranke, A. Magnus G. Carvalho, J.C.P. Campoy, Sergio Gama, Adelino A. Coelho, E. J. R. Plaza
Publikováno v:
Journal of Magnetism and Magnetic Materials. :2375-2376
We report an experimental study of the magnetocaloric effect (MCE) in the Gd 5 Sn 2 Si 2 compound. The MCE Δ S mag ( T ) as a function of temperature is obtained from magnetization M ( H , T ) measurements up to 5 T. A second order magnetic transiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b13964377e8aa26493af3050db5c6480
https://doi.org/10.1016/j.jmmm.2003.12.1010
https://doi.org/10.1016/j.jmmm.2003.12.1010
Publikováno v:
Journal of Magnetism and Magnetic Materials. :2373-2374
The behavior of Nd monopnictides in the paramagnetic regime is studied with a Hamiltonian that includes crystalline field interactions, molecular and quadrupolar fields. Experimental results have been obtained from polycrystalline samples, and from a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88e8d8964998ed2d8eca6841a2fb1dd2
https://doi.org/10.1016/j.jmmm.2003.12.964
https://doi.org/10.1016/j.jmmm.2003.12.964
Publikováno v:
Journal of Applied Physics. 107:103928
We report a theoretical investigation on the magnetocaloric properties of the cubic CsCl-type TbZn compound. Two successive peaks in the magnetocaloric quantities are observed and attributed to different types of phase transitions. For the magnetic f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9bfc45f9928296dad10bab1df216085
https://doi.org/10.1063/1.3386523
https://doi.org/10.1063/1.3386523
Autor:
Luana Caron, B.P. Alho, N.A. de Oliveira, E J R Plaza, P.J. von Ranke, V.S.R. de Sousa, Mario S. Reis
Publikováno v:
Journal of Physics: Condensed Matter. 21:056004
The inverse magnetocaloric effect occurs when a magnetic material cools down under applied magnetic field in an adiabatic process. Although the existence of the inverse magnetocaloric effect was recently reported experimentally, a theoretical microsc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf043855ae16262fcce0b8b430d15652
https://doi.org/10.1088/0953-8984/21/5/056004
https://doi.org/10.1088/0953-8984/21/5/056004
Autor:
V.S.R. de Sousa, P.J. von Ranke, Mario S. Reis, B.P. Alho, N.A. de Oliveira, E. J. R. Plaza, Sergio Gama, A. Magnus G. Carvalho
Publikováno v:
Journal of Applied Physics. 104:093906
We report on calculations of the anisotropic magnetocaloric effect in DyAl2 using a model Hamiltonian including crystalline electrical field effects. The anisotropic effect is produced by the rotation of a constant magnetic field from the easy to a h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9b7af7c34ae56bb36dfb8d41842e2b3
https://doi.org/10.1063/1.3009974
https://doi.org/10.1063/1.3009974