Results 21 to 30 of about 12,197 (208)

Simulated magnetocaloric properties of MnCr2O4 spinel [PDF]

Processing and Application of Ceramics, 2016
The magnetocaloric properties of MnCr2O4 spinel have been simulated based on a phenomenological model. The simulation of magnetization as function of temperature is used to explore magnetocaloric properties such as magnetic entropy change, heat capacity ...
Mahmoud A. Hamad
doaj   +1 more source

Oil-based magnetic fluids. Synthesis, properties, and application prospects

Известия высших учебных заведений: Нефть и газ, 2023
In this work, magnetite crude oil-based magnetic fluids have been synthesized and studied. Their physicochemical parameters (density, viscosity, magnetic phase particle size) have been determined.
V. V. Korolev, A. G. Ramazanova, O. V. Balmasova, V. I. Yashkova, A. I. Valeev   +4 more
doaj   +1 more source

On the magnetism and magnetocaloric effect in PrNi2−xCox [PDF]

AIP Advances
In search for new materials for hydrogen liquefaction through the use of the magnetocaloric effect, we investigated the PrNi2−xCox alloy series with respect to their crystallographic, magnetic, and magnetocaloric properties.
R. D. de Melo, C. L. Valente-Rodrigues, A. M. Gomes   +2 more
doaj   +1 more source

Large adiabatic temperature and magnetic entropy changes in EuTiO3 [PDF]

, 2015
We have investigated the magnetocaloric effect in single and polycrystalline samples of quantum paraelectric EuTiO3 by magnetization and heat capacity measurements.
Chen, Ruofan, Evangelisti, M., Lorusso, G., Mahendiran, R., Mandal, P., Midya, A., Rubi, Km, Wang, Jian-Sheng   +7 more
core   +3 more sources

Review of the Magnetocaloric Effect in RMnO3 and RMn2O5 Multiferroic Crystals

Crystals, 2017
It is known that some of RMnO3 and RMn2O5 (R = rare earth) multiferroic crystals reveal a strong interplay between their magnetic and electric order parameters, paving the way for applications in spintronic technologies.
Mohamed Balli, Benoit Roberge, Patrick Fournier, Serge Jandl   +3 more
doaj   +1 more source

Investigation of Magnetocaloric Properties in the TbCo₂-H System

Crystals, 2022
In this work the magnetocaloric effect in the TbCo2-H system in the region of the Curie temperature was studied both by direct and indirect methods in external magnetic fields up to ~1.4 and 14 T, respectively.
Galina Politova, Irina Tereshina, Ioulia Ovchenkova, Abdu-Rahman Aleroev, Yurii Koshkid’ko, Jacek Ćwik, Henryk Drulis   +6 more
doaj   +1 more source

Proximity-enhanced magnetocaloric effect in ferromagnetic trilayers

Journal of Physics: Condensed Matter, 2022
Abstract The demagnetization and associated magnetocaloric effect (MCE) in strong-weak-strong ferromagnetic trilayers, upon a reorientation of the strong ferromagnets from parallel to antiparallel (AP) magnetization, is simulated using atomistic spin dynamics. The simulations yield non-trivial spin distributions in the AP state, which in
M Persson, M M Kulyk, A F Kravets, V Korenivski   +3 more
openaire   +3 more sources

Improvement of magnetocaloric properties of Gd-Ge-Si alloys by alloying with iron

EPJ Web of Conferences, 2013
The influence of annealing of Gd5Ge2Si2Fex alloys at 1200°C and of alloying with various amount of iron on structure as well as thermal and magnetocaloric properties is investigated.
Erenc-Sędziak T., Cieślak G., Kowalczyk M., Ferenc J., Kulik T.   +4 more
doaj   +1 more source

Direct Measure of Giant Magnetocaloric Entropy Contributions in Ni-Mn-In [PDF]

, 2016
Off-stoichiometric alloys based on Ni 2 MnIn have drawn attention due to the coupled first order magnetic and structural transformations, and the large magnetocaloric entropy associated with the transformations. Here we describe calorimetric and magnetic
Bruno, Nickolaus M., Chen, Jing-Han, Huang, Yujin, Karaman, Ibrahim, Li, Jianguo, Ross Jr, Joseph H.   +5 more
core   +2 more sources

Band Gap Tuneability in Antiperovskite‐Based Nitrides AE3PnN and Imides AE5Pn2(NH)2 (AE = Ca, Sr; Pn = As, Sb, Bi)

Angewandte Chemie, EarlyView.
A series of imide‐based defect antiperovskites AE5Pn2(NH)2 (AE = Ca, Sr; Pn = As, Sb, Bi) has been synthesized using the ammonothermal method. DFT calculations and spectroscopy revealed direct band gaps suitable for photovoltaic absorber materials. The discovered compounds can further be used as precursors for the synthesis of AE3PnN antiperovskites as
Thanh G. Chau, Florian Wolf, Dan Han, Saloni, Teak D. Boyko, Stefan S. Rudel, Thomas Bein, Hubert Ebert, Alexander Moewes, Wolfgang Schnick   +9 more
wiley   +2 more sources