Journal ArticleDOI
Influence of magnetic field on critical behavior near a first order transition in optimally doped manganites: The case of La1−xCaxMnO3 (0.2≤x≤0.4)
P. Zhang,P. Lampen,The-Long Phan,Seong-Cho Yu,Tran Dang Thanh,Nguyen Huy Dan,V. D. Lam,Hariharan Srikanth,Manh-Huong Phan +8 more
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TLDR
In this paper, a detailed study of the properties of the ferromagnetic to paramagnetic transition in polycrystalline manganites La 1− x Ca x MnO 3 ( x = 0.2, 0.3, and 0.4) is presented.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 2013-12-01. It has received 83 citations till now. The article focuses on the topics: Paramagnetism & Critical exponent.read more
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Journal ArticleDOI
First-to-second-order magnetic-phase transformation in La0.7Ca0.3-xBaxMnO3 exhibiting large magnetocaloric effect
The-Long Phan,N. T. Dang,T. A. Ho,T. V. Manh,Tran Dang Thanh,Chang Uk Jung,Bo Wha Lee,Anh-Tuan Le,Anh D. Phan,S.C. Yu +9 more
TL;DR: In this article, the authors have prepared polycrystalline samples La 0.7 Ca 0.3- x Ba x MnO 3 materials in magnetic refrigeration and studied their magnetic properties and magnetocaloric effect based on magnetization versus temperature and magnetic-field measurements.
Journal ArticleDOI
Investigation on structural, magneto-transport, magnetic and thermal properties of La0.8Ca0.2−xBaxMnO3 (0 ⩽ x ⩽ 0.2) manganites
TL;DR: In this article, the structural, electrical, magnetic and thermo-electric properties of La 0.8 Ba x Ca 0.2 − x MnO 3 (0,⩽ ǫ xǫ ⩽ Á 2 ) manganites are analyzed using the phenomenological percolation model.
Journal ArticleDOI
Effect of calcium deficiency on the critical behavior near the paramagnetic to ferromagnetic phase transition temperature in La0.8Ca0.2MnO3 oxides
TL;DR: In this paper, the critical behavior associated with the magnetic phase transition has been investigated by magnetization isotherms in La 0.8 Ca 0.2 MnO 3 (□ is the calcium deficiency), and the critical exponents are estimated by various techniques such as the Modified Arrott plot, Kouvel-Fisher plot and critical isotherm technique.
Journal ArticleDOI
Critical behavior of La0.7Ca0.3Mn1−xNixO3 manganites exhibiting the crossover of first- and second-order phase transitions
The-Long Phan,Quang-Hung Tran,P. Q. Thanh,P.D.H. Yen,Tran Dang Thanh,Tran Dang Thanh,Seong-Cho Yu +6 more
TL;DR: In this paper, the authors used Banerjee's criteria, modified Arrott plots, and the scaling hypothesis to analyze magnetic-field dependences of magnetization near the ferromagnetic-paramagnetic (FM-PM) phase-transition temperature (TC) of perovskite-type manganites La0.7Ca0.3Mn1−xNixO3 (x=0.09, 0.12 and 0.15).
Posted Content
Lattice-Spin Mechanism in Colossal Magnetoresistant Manganites
TL;DR: A single-orbital double-exchange model, coupled with cooperative phonons (the so called breathing modes of the oxygen octahedra in manganites) with a first-order metal-insulator phase transition, which coincides with the paramagnetic-ferromagnetic phase transition.
References
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MonographDOI
Magnetism and Magnetic Materials
TL;DR: In this paper, the authors introduce magnetostatics and magnetism of localized electrons on the atom, and apply it to spin electronics and magnetic recording, as well as applications of hard magnets.
Journal ArticleDOI
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.
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On a generalised approach to first and second order magnetic transitions
Journal ArticleDOI
Lattice effects on the magnetoresistance in doped lamno3
Harold Y. Hwang,Harold Y. Hwang,Sang-Wook Cheong,Radaelli Pg,M. Marezio,M. Marezio,Bertram Batlogg +6 more
TL;DR: The results show that the notion of ``double exchange'' must be generalized to include changes in the Mn-Mn electronic hopping parameter as a result of changes inThe Mn-O-Mm bond angle.
Journal ArticleDOI
Nonanalytic Behavior Above the Critical Point in a Random Ising Ferromagnet
TL;DR: In this paper, it was shown that in a class of randomly diluted Ising ferromagnets the magnetization fails to be an analytic function of the field at a range of temperatures above that at which spontaneous magnetization first appears.