Journal ArticleDOI
Influence of Sm-doping on the structural, magnetic, and electrical properties of La0.8−xSmxSr0.2MnO3 (0 < x < 0.45) manganites
TLDR
In this article, structural, magnetic, and electrical properties of the La0.8−xSmxSr0.2MnO3 manganites prepared by a solid-state reaction technique was studied systematically.About:
This article is published in Journal of Alloys and Compounds.The article was published on 2013-12-05. It has received 58 citations till now. The article focuses on the topics: Curie temperature & Magnetization.read more
Citations
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3D-Ising ferromagnetic characteristics and magnetocaloric study in Pr0.4Eu0.2Sr0.4MnO3 manganite
TL;DR: The structure, critical exponents and magnetocaloric effect (MCE) of the second-order magnetic phase transition were investigated in detail in this article, showing that the sample adopts an orthorhombic structure with Pnma space group.
Journal ArticleDOI
Magnetic and electrical studies on La0.4Sm0.1Ca0.5MnO3 charge ordered manganite
A. Krichene,P.S. Solanki,D. Venkateshwarlu,Sudhindra Rayaprol,V. Ganesan,W. Boujelben,D. G. Kuberkar +6 more
TL;DR: In this article, the effect of the partial substitution of lanthanum by samarium on the structural, electrical and magnetic properties of La 05 Ca 05 MnO 3 has been investigated and it has been shown that substitution promotes charge ordering and weakens ferromagnetism.
Journal ArticleDOI
Rare earth effect on structural, magnetic and magnetocaloric properties of La0.75Ln0.05Sr0.2MnO3 manganites
TL;DR: In this paper, the rare earth substitution effect on structural, magnetic and magnetocaloric properties of La 0.75 Ln 0.05 Sr 0.2 MnO 3 polycrystalline manganites (Ln˭La, Sm, Eu, Gd, Dy and Ho), synthesized using the sol-gel technique.
Journal ArticleDOI
Critical behavior and magnetocaloric study in La0.6Sr0.4CoO3 cobaltite prepared by a sol–gel process
TL;DR: In this article, the structure, magnetic properties, critical exponents and magnetocaloric effect (MCE) of La0.6Sr0.4CoO3 cobaltite are studied.
Journal ArticleDOI
Structural distortion effect on the magnetization and magnetocaloric effect in Pr modified La0.65Sr0.35MnO3 manganite
TL;DR: In this article, X-ray diffraction results indicate that the all samples have rhombohedral (R-3c) structure without any impurity phase and the field-cooled magnetization M(T) of all samples show the ferromagnetic behavior below Curie temperature (TC).
References
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Journal ArticleDOI
Interaction between the d -Shells in the Transition Metals. II. Ferromagnetic Compounds of Manganese with Perovskite Structure
TL;DR: In this paper, it was shown that both electrical conduction and ferromagnetic coupling in these compounds arise from a double exchange process, and a quantitative relation was developed between electrical conductivity and the Ferromagnetic Curie temperature.
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Theory of the role of covalence in the perovskite-type manganites [La,M(II)]MnO3
TL;DR: In this article, the theory of double exchange was applied to perovskite-type manganites and detailed qualitative predictions about the magnetic lattice, the crystallographic lattice and the electrical resistivity were made.
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Insulator-metal transition and giant magnetoresistance in La 1-x Sr x MnO 3
TL;DR: Insulator-metal phenomena depending on band filling, temperature, and external magnetic field have been investigated for prototypical double-exchange ferromagnets, namely, crystals of crystals of La 1-x, showing large negative magnetoresistance around the ferromagnetic transition temperature.
Journal ArticleDOI
Studies of polaron motion: Part II. The “small” polaron
TL;DR: In this article, the authors considered the case in which the electronic-overlap term of the total Hamiltonian is a small perturbation, and showed that the probability of off-diagonal transitions goes up exponentially with increasing temperature.
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The physics of manganites: Structure and transport
M. B. Salamon,Marcelo Jaime +1 more
TL;DR: The fundamental physical properties of doped oxides and their underlying physics were known more than 40 years ago as mentioned in this paper, and the concept of double exchange in particular, and points out the missing elements that have led to a massive resurgence of interest in these and related materials.