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
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TLDR
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.About:
This article is published in Journal of Alloys and Compounds.The article was published on 2016-02-05. It has received 70 citations till now. The article focuses on the topics: Curie temperature & Magnetization.read more
Citations
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Journal ArticleDOI
Magnetocaloric effect: From materials research to refrigeration devices
TL;DR: The magnetocaloric effect and its most straightforward application, magnetic refrigeration, are topics of current interest due to the potential improvement of energy efficiency of cooling and temperature control systems, in combination with other environmental benefits associated to a technology that does not rely on the compression/expansion of harmful gases.
Journal ArticleDOI
Critical properties in La0.7Ca0.2Sr0.1MnO3 manganite: A comparison between sol-gel and solid state process
TL;DR: In this article, the critical properties of La0.7Ca0.2Sr0.1MnO3 manganite elaborated using two different methods have been investigated around the ferromagnetic-paramagnetic phase transition.
Journal ArticleDOI
Effects of synthesis route on the structural, magnetic and magnetocaloric properties of Pr0.8K0.2MnO3
TL;DR: In this article, the influence of powder synthesis method on the structural, morphological, magnetic and magnetocaloric properties of the samples are investigated, showing that the physical properties of our samples are strongly depended on synthesis techniques.
Journal ArticleDOI
Predicting the tricritical point composition of a series of LaFeSi magnetocaloric alloys via universal scaling
Victorino Franco,Jia Yan Law,A. Conde,V. Brabänder,Dmitriy Yu. Karpenkov,Iliya Radulov,Konstantin P. Skokov,Oliver Gutfleisch +7 more
TL;DR: In this article, a series of LaFeSi alloys in which the different Fe/Si ratio produces a change in the order of the phase transition was studied and the tricritical point of an alloy series was predicted by analyzing the field dependence of peak magnetic entropy change.
Journal ArticleDOI
Two different critical regimes enclosed in the Bean-Rodbell model and their implications for the field dependence and universal scaling of the magnetocaloric effect.
TL;DR: The well-known Bean-Rodbell model is used to confirm that these features are unmistakably related to the critical behavior of the continuous phase transitions and it is concluded that it is really difficult to know with full certainty if a sample really is in the tricritical regime.
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.
Journal ArticleDOI
Double exchange alone does not explain the resistivity of La1-xSrxMnO3.
TL;DR: It is proposed that in addition to double-exchange physics a strong electron-phonon interaction arising from the Jahn-Teller splitting of the outer Mn $d$ level plays a crucial role.
Journal ArticleDOI
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.
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