Results 41 to 50 of about 318 (102)

Interfaz gráfica como una herramienta en la simulación de propiedades de manganitas Re2/3A1/3MnO3 empleando el método de Monte Carlo y el modelo de Heisenberg [PDF]

open access: yes, 2013
Las interfaces gráficas son útiles para especificar y examinar estructuras químicasy propiedades físicas de materiales. En este artículo se presenta el software SIMMON (Simulación de propiedades magnéticas de manganitas) como un programa de visualización
Barco-Ríos, H.   +4 more
core  

MAGNETORESISTANCE IN MANGANITE-BASED JUNCTIONS

open access: yesMomento, 2010
This paper reviews the tunnelling magnetoresistance (TMR) of magnetic tunneling junctions, particulary of those made of manganites. The origin of this type of tunneling and its dependence on the material, the growing method and the temperature are ...
Lucero Alvarez-Miño
doaj  

MAGNETORRESISTENCIA COLOSAL EN MANGANITAS DEL TIPO La1_xDxMnO3 CON D= Ba, Ca

open access: yesRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
Se prepararon manganitas perovskitas del tipo La₀.₆₇Ca₀.₃₃MnO₃ y La₀.₆₇Ba₀.₃₃MnO₃ por reacción de estado sólido. Estas muestras se caracterizaron eléctrica, magnética y estructuralmente y se estudió el efecto que diferentes rutinas de preparación tienen sobre estas propiedades.
R. Jiménez, A. Mariño, H. Sánchez
openaire   +1 more source

Obtención de la manganitas de calcio y terbio mediante el método de coprecipitación química [PDF]

open access: yes, 2014
This paper presents the synthesis and characterization of calcium and terbium manganite (TbxCa1-xMnO3) at different concentrations of the value of x (0.35, 0.40 and 0.45) by means of the synthesis method called chemical coprecipitation.
Legorreta García, Felipe   +3 more
core   +1 more source

Síntesis, sinterización y propiedades eléctricas de soluciones sólidas YNixMn1-xO3 preparadas a partir de Precursores Poliméricos

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2001
The solid solutions YNixMn1-xO3 are semiconducting materials which show perovskite-like structure, ortorrombic symmetry, and spatial group Pbnm. Their electrical and magnetic properties are typical of materials with potential applications in sensor ...
Moure, C.   +3 more
doaj  

INFLUENCE OF BALL MILLING PROCESS ON STRUCTURAL AND MAGNETIC PROPERTIES OF La0.7Sr0.3MnO3 MANGANITE

open access: yesRevista EIA
This investigation presents the magnetic and structural properties of ferromagnetic manganite La0.7Sr0.3MnO3, (LSMO), subjected to ball milling processes. The LSMO powder sample was obtained by solid state reaction from high purity precursors. From X-ray
Gloria Campillo Figueroa   +6 more
doaj  

Efecto de los parámetros de procesamiento sobre las características cristalinas de la solución sólida Y(CoxMn1-x)O3, x=0.6, 0.7

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2002
The preparation and crystalline features of perovskite solid solution Y(CoxMn1-x)O3, x=0.6, 0.7, belonging to the Co-rich region of the pseudobinary system YMnO3-YCoO3 have been studied. Dilatometric essays performed under different atmospheres have been
Fernández, J. F.   +3 more
doaj  

Phase transitions induced on hexagonal manganites by the incorporation of aliovalent cations on A or B lattice sites

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 1999
The phase transition to perovskite-type structure, that occurs in some hexagonal manganites when foreign cations are incorporated into solid solution, has been studied. Several solid solution series belonging to the Y(Mn, Ni)O3, (Er, Ca)MnO3, (Y, Ca)MnO3,
Moure, C.   +5 more
doaj  

Kemijska sinteza stroncijeva i lantanova manganita

open access: yes, 2020
U ovom radu istraživane su dvije metode sinteze stroncijeva manganita i lantanova manganita dopiranog stroncijem. Stroncijev manganit sintetiziran je limunskim postupkom i koprecipitacijom, a kao izvor metalnih kationa korišteni su stroncijev karbonat i manganov (II) nitrat tetrahidrat.
openaire   +2 more sources

Modelamiento y simulación de susceptibilidad magnética AC en manganitas La2/3Ca1/3MnO3 [PDF]

open access: yes, 2018
In this study, a model for obtaining the AC magnetic susceptibility of La2/3Ca1/3MnO3 manganites was proposed. The samples were composed of a combination of Mn4+ and Mn3+ ions that influence the material stoichiometry.
Barco Ríos, Hector Silvio   +3 more
core  

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