Results 31 to 40 of about 80 (75)

Efectos intergranulares en perovskitas de manganeso nanocristalinas

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2000
Intergranular magnetotransport effects are studied on polycrystalline manganites. Reducing grain size through sol-gel technology allows us to show new results on these materials.
Hueso, L. E.   +4 more
doaj  

Chemical and thermomechanical compatibility between neodymium manganites and electrolytes based on ceria

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2008
The goal of this work was to study the thermal expansion behaviour and to establish the phase relations between NdMe0.5Mn0.5O3 (Me=Ni, Co) solid solutions as cathodes and two electrolytes based on Ce0.9Gd0.1O1.95. Doping of electrolyte with 1.0 wt% Bi2O3
Gil, V., Tartaj, J., Moure, C.
doaj  

Crystalline structure and electrical properties of Dy1-XCaXMnO3 solid solution

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2002
Solid solutions corresponding to the Dy1-xCaXMnO3 system, x=0.0 to 0.60 have been studied. The powders were prepared by solid state reaction of the corresponding oxides and carbonates. Sintered bodies were obtained by firing between 1250 and 1450ºC.
Durán, P.   +3 more
doaj  

Crystalline structure of the manganites solid solution RE(Me,Mn)O<sub>3</sub>, (RE=Gd,Er; Me=Ni,Co)

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2009
The structural properties of the manganites solid solution RE(Me,Mn)O<sub>3</sub>, RE=Er,Gd, have been studied by X-ray diffraction and electric measurements.
Peña, O.   +3 more
doaj  

Magnetska dinamika dvoslojnog manganita La1.4Sr1.6Mn2O7 [PDF]

open access: yes, 2014
U ovom radu je istraživana magnetska dinamika dvoslojnog manganita La1.4Sr1.6Mn2O7 mjerenjem linearne i nelinearne izmjenične susceptibilnosti na temperaturama izmedu 4.2 K i 400 K, te magnetizacije izmedu 320 K i 500 K. Dokazano je postojanje Griffithsove faze na 370 K, dugodosežnog magnetskog uređenja na 91.2 K, te pojava staklastog ponašanja na ...
openaire  

GRAPHICAL INTERFACE AS A TOOL IN SIMULATION OF MAGNETIC PROPERTIES OF Re2/3A1/3MnO3 MANGANITES WITH MONTE CARLO METHOD AND HEISENBERG MODEL

open access: yesRevista Ingenierías Universidad de Medellín, 2013
The graphics interface is useful in specifying and examining chemical structures and physical properties. In this scientific and technological research paper, the SIMMON (MMSP - Manganite magnetic simulation properties) software is presented, as a ...
H. Barco-Ríos   +2 more
doaj  

Obtención de manganitas de calcio y terbio mediante el método de combustión

open access: yesTópicos de Investigación en Ciencias de la Tierra y Materiales, 2015
En este trabajo se presenta la síntesis y caracterización de la manganita de calcio y terbio (TbₓCa₁₋ ₓMnO₃) la cual fue obtenida mediante el método de síntesis de combustión. Las manganitas fueron obtenidas  partiendo  de  sales  precursoras  de  Ca(NO₃)₂.4H₂O  [0.65  M],  Mn(NO₃)₂.H₂O [1  M]  y Tb(NO₃)₃.5H₂O [0.35 M], usando como combustible Urea (CO(
Arisbeth Flores Rojas   +6 more
openaire   +1 more source

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  

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  

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