Magnetic properties and magnetic-entropy change of MnFeP0.5As0.5−xSix(x=0–0.3) compounds

2006 ◽  
Vol 99 (8) ◽  
pp. 08Q105 ◽  
Author(s):  
W. Dagula ◽  
O. Tegus ◽  
X. W. Li ◽  
L. Song ◽  
E. Brück ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Entropy Change ◽  
Entropy Change ◽  
Magnetic Entropy

scholarly journals Magnetic properties of the non-stoichiometric TbCo2Nix alloys

2018 ◽  
Vol 185 ◽  
pp. 04021
Author(s):  
Alexander Inishev ◽  
Evgeny Gerasimov ◽  
Nikolay Mushnikov ◽  
Pavel Terentev ◽  
Vasily Gaviko
Keyword(s):  
Magnetic Properties ◽  
Curie Temperature ◽  
Concentration Dependence ◽  
Magnetic Moment ◽  
Magnetic Entropy Change ◽  
Entropy Change ◽  
Magnetic Entropy ◽  
Thermodynamic Relation ◽  
Temperature Dependences

The magnetic and magnetothermal properties of the non-stoichiometric TbCo2Nix (0 ≤ x ≤ 0.2) alloys were studied. It was found that the concentration dependence of the Curie temperature and magnetic moment of the 3d-sublattice have a maximum at x = 0.025. The obtained experimental magnetic properties of the TbCo2Nix alloys were discussed under assumption that the Co magnetic moment in the compounds changes with increasing x. The magnetic entropy change was determined using the temperature dependences of the magnetization and Maxwell’s thermodynamic relation. The obtained results for TbCo2Nix were compared with those for the ErCo2Mnx alloys.

Magnetic properties and magnetic entropy change in rare earth-rich aluminium compounds of RE 2 CuAl 3 ( RE = Dy and Tm)

2018 ◽  
Vol 97 ◽  
pp. 8-11
Author(s):  
Lijuan Wang ◽  
Chenping Bao ◽  
Wenlin Gao ◽  
Yanguo Pang ◽  
Xiangjie Wang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Magnetic Entropy Change ◽  
Entropy Change ◽  
Magnetic Entropy

Effect of Crystal Size on the Magnetic Entropy Change in CoCr2O4

2007 ◽  
Vol 121-123 ◽  
pp. 889-892 ◽  
Author(s):  
Shang Dong Li ◽  
Zhi Gao Huang ◽  
Guo Xia Zhao ◽  
Wen Qin Zou ◽  
You Liao Zheng ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Size Effect ◽  
Magnetic Entropy Change ◽  
Crystal Size ◽  
Nanocrystalline Material ◽  
Bulk Material ◽  
Entropy Change ◽  
The Other ◽  
Magnetic Entropy ◽  
Two Samples

The size effect of magnetocaloric effect (MCE) in CoCr2O4 has been investigated by comparing two samples with different crystal sizes. One is bulk CoCr2O4 sample (referred as A), and the other is a nanocrystalline CoCr2O4 sample (referred as B). It has been found that crystal size dramatically affects the magnetic properties and MCE for CoCr2O4, and that the nanocrystalline material is more favorable for application than the bulk material. The above results are explained in terms of the effect of small size and its distribution for sample B on the intrinsic magnetic properties and magnetic entropy change.

High-temperature solvothermal synthesis and magnetic properties of nearly monodisperse CdCr2S4 nanocrystals

2015 ◽  
Vol 3 (46) ◽  
pp. 12077-12082 ◽  
Author(s):  
Chao Pang ◽  
Ling Gao ◽  
Anurag Chaturvedi ◽  
Ningzhong Bao ◽  
Kazumichi Yanagisawa ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Temperature ◽  
Solvothermal Synthesis ◽  
Magnetic Entropy Change ◽  
Solvothermal Method ◽  
Entropy Change ◽  
Magnetic Entropy

Magnetic spinel CdCr2S4 nanocrystals have been synthesized using a high-temperature solvothermal method, which exhibit a large reversible magnetic entropy change over a wide temperature span.

scholarly journals Magnetic Properties and Magnetocaloric Effect in Selected MM’X-Type (M, M’ = 3d or 4d Metal, X = As, P, Ge) and Mn1-xTxAs-Type (T = 3d Metal) Intermetallics

2011 ◽  
Vol 170 ◽  
pp. 180-184 ◽  
Author(s):  
Ryszard Zach ◽  
Wiesław Chajec ◽  
Janusz Toboła ◽  
Daniel Fruchart ◽  
El Kebir Hlil ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Phase Transitions ◽  
Band Structure ◽  
Magnetocaloric Effect ◽  
Solid Solutions ◽  
Magnetic Entropy Change ◽  
Electronic Band Structure ◽  
Entropy Change ◽  
Magnetic Entropy ◽  
Electronic Band

In this report a review of magnetic properties of two groups of intermetallic compounds in relation with their magnetocaloric effect properties is presented. A first group of materials concerns the MM’X type (M, M’-metal 3d or 4d, X = As, P, Ge) of compounds. In this group the MnRh1-xCoxAs and MnFe1-xCoxP series of solid solutions are investigated. In a second group of materials, the Mn1-xTxAs (T = Cr, V, Ti, (Ti0.5V0.5) ) series of compounds are analyzed. In this case a special attention is paid for high dc field magnetization measurements and for selected compounds. As a summary the magnetic entropy change vs. M, M’ or T transition metal concentration for F-P phase transitions will be shown. Furthermore results of KKR-CPA electronic band structure computations in relation to magnetic properties are discussed.

Magnetic properties and magnetic entropy change of LaFe11.5Si1.5Hyinterstitial compounds

2003 ◽  
Vol 15 (7) ◽  
pp. L161-L167 ◽  
Author(s):  
Yuan-fu Chen ◽  
Fang Wang ◽  
Bao-gen Shen ◽  
Feng-xia Hu ◽  
Ji-rong Sun ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Entropy Change ◽  
Entropy Change ◽  
Magnetic Entropy

scholarly journals Microstructure and Magnetocaloric Effect by Doping C in La-Fe-Si Ribbons

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 343
Author(s):  
Huihui Song ◽  
Yuhu Hu ◽  
Jiale Zhang ◽  
Jinyu Fang ◽  
Xueling Hou
Keyword(s):  
Magnetic Properties ◽  
Magnetic Entropy Change ◽  
Entropy Change ◽  
Magnetic Entropy ◽  
Microstructure Observation ◽  
A Value ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Quenching Method ◽  
Fast Quenching

The melt-spun ribbons of LaFe11.5Si1.5Cx (x = 0, 0.1, 0.2, 0.3) compounds are prepared by the melt fast-quenching method. The doping of C is beneficial to the nucleation and precipitation of the La (Fe, Si)13 phase, which is indicated by the microstructure observation and the elemental analysis. Subsequently, the ribbons of LaFe11.5Si1.5C0.2 are annealed at different times, and the phase composition, the microstructures, and the magnetic properties are investigated. The LaFe11.5Si1.5C0.2 ribbons annealed at 1273 K for 2 h achieved the best magnetic properties, and the maximum isothermal magnetic entropy change with a value of 9.45 J/(kg·K) upon an applied field of 1.5 T at an increased Curie temperature 255 K.

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