Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Samy H. Aly"'
Autor:
Mohammed Said Mohammed Abu-Elmagd, Tarek Hammad, Ahmed Abdel-Kader, Nesreen El-Shamy, Sherif Yehia, Samy H. Aly, Fatema Z. Mohammad
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract In this work, the magnetothermal characteristics and magnetocaloric effect in YFe3 and HoFe3 compounds are calculated as function of temperature and magnetic field. These properties were investigated using the two-sublattice mean field model
Externí odkaz:
https://doaj.org/article/786537e4280e460c9b82a131366cac8c
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 36:931-938
We present a mean field study on the R6Fe23 system, where R = Dy, Ho, Er, and Tm, to calculate the magnetization, magnetic heat capacity, and the magnetocaloric effect (MCE) (isothermal entropy change (ΔSm) and the adiabatic temperature change (ΔTa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9eaba4d69658c83468b5056473d6b4e7
https://doi.org/10.1007/s10948-023-06529-0
https://doi.org/10.1007/s10948-023-06529-0
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 35:2881-2888
We present a theoretical study on the anisotropic magnetocaloric effect and the size-dependent magnetic properties of Fe particles of radii in the range 25–150 Å. An observable increase has been found in the magnetization, of the low radii (25–7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c918cd4a7ece69c4b935cd5eedc4b7d
https://doi.org/10.1007/s10948-022-06320-7
https://doi.org/10.1007/s10948-022-06320-7
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 35:2555-2562
We present a study on the magnetic properties and magnetocaloric effect (MCE) in R3Co11B4, where R = Pr, Nd, Tb, Dy, and Ho. The two-sublattice model is used for calculating magnetization, magnetic heat capacity, isothermal entropy change ∆Sm, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7f48cef35e6cf56d734c0aecf5d10cc
https://doi.org/10.1007/s10948-022-06298-2
https://doi.org/10.1007/s10948-022-06298-2
Publikováno v:
Cryogenics. 127:103567
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f34c778a6dadd747517d0916bbcd416c
https://doi.org/10.1016/j.cryogenics.2022.103567
https://doi.org/10.1016/j.cryogenics.2022.103567
Publikováno v:
Journal of Magnetism and Magnetic Materials. 475:436-444
A method, based on the molecular field theory of ferrimagnetism, and standard relations for the electronic and lattice heat capacities and entropies, is used to calculate the magnetocaloric effect ( MCE ) in Er 2 Fe 17 . This compound has a Curie tem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::885962f07d5bf7de2f1bc94325324bc3
https://doi.org/10.1016/j.jmmm.2018.11.079
https://doi.org/10.1016/j.jmmm.2018.11.079
Publikováno v:
Journal of Magnetism and Magnetic Materials. 473:324-330
We report on a theoretical study of thermomagnetic and magnetocaloric properties of TmFe2. The magnetization, total heat capacity, total entropy and magnetocaloric effect, namely isothermal entropy change ΔSm and adiabatic temperature change ΔTad,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98a716cc1183db9768fa9e65fc30c1b7
https://doi.org/10.1016/j.jmmm.2018.10.050
https://doi.org/10.1016/j.jmmm.2018.10.050
Publikováno v:
Egyptian Journal of Chemistry.
The geometry optimizations and electronic structure calculations were performed for graphene sheet doped with aluminium (Al) and nitrogen (N). The effect of doping has been examined by changing the concentrations of dopants from 2 % (one atom of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ee46ff45e862e05478f6a724473a201
https://doi.org/10.21608/ejchem.2021.55845.3180
https://doi.org/10.21608/ejchem.2021.55845.3180
Publikováno v:
International Journal of Computational Physics Series. 1:268-278
We present a mean-field analysis, using the two-sublattice model, for the thermomagnetic and magnetocaloric properties of the R2Fe17C compounds, where R=Dy, Nd, Tb, Gd, Pr, Ho, Er and C is carbon. The dependence of magnetization, magnetic heat capaci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39ea42d00f659ce1ef6803af9123795d
https://doi.org/10.29167/a1i1p268-278
https://doi.org/10.29167/a1i1p268-278
Publikováno v:
International Journal of Computational Physics Series. 1:102-113
We present a mean-field study on the magnetocaloric effect (MCE) in RFe10X2, where X=Mo, V, and R=Gd, Tb, Ho, Tm, Dy, Er, Nd for X=V. For X=Mo, R=Dy, Gd, and Nd. The two-sublattice model, involving the 4f (rare earth) and 3d(Fe) sublattices, is used.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29e8cadc2c1f4a61ac514454783baa33
https://doi.org/10.29167/a1i1p102-113
https://doi.org/10.29167/a1i1p102-113