Zobrazeno 1 - 10
of 154
pro vyhledávání: '"JAIRO ROA-ROJAS"'
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 46, Iss suppl 1 (2024)
Os materiais multiferróicos constituem um grupo de sistemas multifuncionais com propriedades de enorme aplicabilidade na tecnologia spintrônica. No presente manuscrito, são apresentadas as características fundamentais desse grupo de materiais int
Externí odkaz:
https://doaj.org/article/1c6f794ee1df47f79ac8e03e73c60446
Autor:
Laura Vanessa Parra-Mesa, Carlos A. Parra-Vargas, Indry M. Saavedra-Gaona, David A. Landínez-Téllez, Jairo Roa-Rojas
Publikováno v:
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales (2024)
chemical attributes. The specific domain within technology referred to as spintronics, encompasses the realm of spin transport electronics. Spintronics delves into the electron spin, its inherent magnetic moment and fundamental charge, and the manipu
Externí odkaz:
https://doaj.org/article/aa19d975cbe141ffa3707f8409107006
Publikováno v:
Revista UIS Ingenierías, Vol 19, Iss 3 (2020)
In this work a study of the synthesis process, crystal structure and magnetic behavior of gadolinium manganite with Fe substitutions in Mn positions of GdMn1-xFexO3 (x=0, 0.1, 0.2) is reported. The samples were synthetized by the conventional solid-s
Externí odkaz:
https://doaj.org/article/81aca6fa00714feba3c15e5cba3de462
Autor:
Críspulo Deluque-Toro, Arles Gil-Rebaza, Jorge Villa-Hernández, David Landínez-Téllez, Jairo Roa-Rojas
Publikováno v:
Revista UIS Ingenierías, Vol 19, Iss 1 (2020)
Perovskite-like materials which include magnetic elements have relevance due to the technological perspectives in the spintronics industry. In this work, the magnetic, structural and electronic properties of the Ba2CoMoO6 double perovskite are invest
Externí odkaz:
https://doaj.org/article/e7ca49e454eb45d18b3bfde1fe746b2c
Publikováno v:
Dyna, Vol 85, Iss 205, Pp 27-36 (2018)
Perovskite-like materials, which include magnetic elements, have relevance because their technological perspectives of applications in the spintronics industry. In this work, the magnetic, structural, electronic and thermodynamic properties of the Ba
Externí odkaz:
https://doaj.org/article/cf75834e4abe4bcb83cbd0742cb329f1
Autor:
Gabriel Peña-Rodriguez, Paola A. Rivera-Suarez, Cesar H. Gonzalez-Gomez, Carlos A. Parra-Vargas, Andres O. Garzon-Posada, David A. Landinez-Tellez, Jairo Roa-Rojas
Publikováno v:
TecnoLógicas, Vol 21, Iss 41, Pp 13-27 (2018)
This study reports the effect of the concentration of magnetite powders (Fe3O4) on the electrical and magnetic properties of a resin-based composite of thermoset polyester. The samples were prepared by the casting method at different concentrations:
Externí odkaz:
https://doaj.org/article/267df90251dc495daff07d94954228e8
Autor:
Johny Andrés Jaramillo Palacio, Elixir William Barrera Bello, Julián Andrés Munévar Cagigas, Oscar Arnache, David A. Landínez-Téllez, Jairo Roa-Rojas
Publikováno v:
Materials Research, Vol 20, Iss 5, Pp 1309-1316 (2017)
In this paper the synthesis of the LaBiFe2O6 material by the modified Pechini method is reported. Structural, morphologic, magnetic and optic experimental studies were performed. Rietveld refinement of x-ray diffraction patterns revealed that LaBiFe2
Externí odkaz:
https://doaj.org/article/c31de406d5ef4c40bb130871cc1c4479
Publikováno v:
Dyna, Vol 84, Iss 201, Pp 88-94 (2017)
We report experimental and theoretical results of crystal structure, morphology, magnetic and electric features, and electronic structure for the Sr2DyNbO6 ceramic compound. Samples were produced by the solid-state reaction recipe. X-ray diffraction
Externí odkaz:
https://doaj.org/article/c55d76006e6144cc82588862a1c63c6a
Publikováno v:
Materials Research, Vol 19, Iss 4, Pp 877-881 (2016)
The Sr2HoNbO6 complex perovskite has been synthesized by solid-state reaction. X-ray diffraction pattern reveals that Sr2HoNbO6 material crystallizes in a cubic structure, Fm3̅m space group, lattice constant a=8.018 Å, which has a lattice mismatch
Externí odkaz:
https://doaj.org/article/e2d890697f664fa68b3cfb6aa66b7c3a
Publikováno v:
Dyna, Vol 81, Iss 183, Pp 126-131 (2014)
En este trabajo reportamos la síntesis, la caracterización estructural, el comportamiento ferroeléctrico y las propiedades electrónicas de la perovskita compleja Ba2ZrTiO6. Las muestras fueron sintetizadas mediante el método estándar de reacci
Externí odkaz:
https://doaj.org/article/d8d84c9b51844978a8974607501ac3c4