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Effects of rare-earth substitution in : mixed-valence and magnetic properties
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TLDR
In this paper, the lattice parameters and magnetic properties of (R = Ho, Er) have been investigated, and it was shown that the Ce valence in both systems fluctuates with the concentration of the dopant R. This fluctuation is directly relevant to the degree of localization of Ce 4f electrons.Abstract:
The lattice parameters and magnetic properties of (R = Ho, Er) have been investigated. The deviation of the lattice parameters from Vegard's law indicates that the Ce valence in both systems fluctuates with the concentration of the dopant R. This fluctuation is directly relevant to the degree of localization of Ce 4f electrons, and is independent of the atomic size of the dopant element. The observed metamagnetic transition of has been analysed from the description in the band picture. The Ce valence fluctuation from the mixed-valence state to the localized state increases the moments of the Ce and Fe ions, and the Curie temperature. The changes in the mixed-valence state also affect the properties of the Ce-Fe coupling.read more
Citations
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Magnetic and magnetocaloric properties of Ce1−xRxFe2 and Ce(Fe1−xMx)2 compounds
TL;DR: In this paper, the structural, magnetic and magneto-thermal properties of rare-earth doped and transition-metal doped CeFe2 compounds were examined by examining their structural and magnetic properties, and the magnetocaloric effect across the transitions has been studied from both magnetization isotherms and heat capacity data.
Journal ArticleDOI
Magnetic and the magnetocaloric properties of Ce1-xRxFe2 and Ce(Fe1-xMx)2 compounds
TL;DR: In this article, the authors have studied selected rare earth doped and transition metal doped CeFe2 compounds by examining their structural, magnetic and magneto-thermal properties.
Journal ArticleDOI
Stabilization of antiferromagnetism in CeFe2 alloys: the effects of chemical and hydrostatic pressure
TL;DR: Enhancement of the Ce 4f-Fe 3d hybridization as a result of doping and with the external pressure may be the reason for the stabilization of antiferromagnetism in these alloys.
Journal ArticleDOI
Rare earth (RE – Ce, Gd) modified Nd1−xRExFeAsO0.7F0.3 superconductor with enhanced magneto-transport properties
P. M. Aswathy,J. B. Anooja,Neson Varghese,C. K. Chandrakanth,N. Devendra Kumar,A. Sundaresan,Upendran Syamaprasad +6 more
TL;DR: In this article, the influence of rare earth doping at the Nd site in the superconductor NdFeAsO0.7F0.3 was investigated and the structural and superconductivity characterization of the pure and doped samples were presented.
Journal ArticleDOI
Hybrid DFT study of structural, electronic, magnetic and elastic properties of laves phase binary intermetallics RFe2 (R = La, Ce, Pr and Nd)
TL;DR: In this article , hybrid density functional theory was used to investigate the structural, electronic, magnetic and elastic properties of the Laves phase binary intermetallics RFe2 (R = La, Ce, Pr and Nd) in C15 crystal structure.
References
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Journal ArticleDOI
4f-band magnetism in CeFe2.
TL;DR: The calculated magnetization density and spin-resolved density of states, which are unique to itinerant-electron theory, may be verified in detail by magnetic form-factor andspin-polarized photoemission measurements.
Journal ArticleDOI
The magnetic phases of pseudobinary Ce(Fe1-xMx)2 intermetallic compounds; M=Al, Co, Ru
S J Kennedy,B R Coles +1 more
TL;DR: In this paper, powder neutron diffraction measurements of a range of pseudobinary Ce(Fe1-xMx)2 intermetallic compounds, with M=Al, Co, Ru, are reported.
Journal ArticleDOI
Magnetic anisotropy and hyperfine interactions in Ce Fe 2 , Gd Fe 2 , and Lu Fe 2
U. Atzmony,M. P. Dariel +1 more
TL;DR: In this paper, the Mossbauer spectra were used to determine the easy axis of magnetization in the cubic Laves compounds Ce${\mathrm{Fe}}_{2}, Gd${Fe}}} and Lu${fe}}{2} between 80 and 300 K.
Journal ArticleDOI
Polarised neutron study of the magnetic ordering in the simple alloy YFe2
TL;DR: In this article, the magnetic properties of YFe2 were investigated using the polarised neutron technique and the magnetic intensity on the (220) reflection proved that the yttrium site carries a magnetic moment antiparallel to that of the iron site.
Journal ArticleDOI
A polarized neutron study of the magnetic form factors in CeFe2
TL;DR: In this article, the magnetization distribution in the ferromagnetic phase of CeFe2 at 10 K has been determined using a combination of polarized and unpolarized neutron diffraction measurements on a single crystal.
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