Remarkable increase of Curie temperature in doped GdFeSi compound

Composition-Induced Magnetic Transition in GdMn1-xTixSi Intermetallic Compounds for x = 0–1

“…Due to the various crystal structures, unusual magnetic and electrical properties have been found in these compounds, such as complex magnetic orderings, valence fluctuations, unusual types of superconductivity, heavy fermion behavior, metamagnetism, spin glass, memory effect, magnetoresistance, magnetocaloric effect, etc. [5][6][7][8]. Although these compounds have been known for a long time, they have recently attracted greater interest, since they exhibit enormous magnitudes of the magnetocaloric effect and magnetoresistance [7,9,10].…”

“…This allows the RTX series to cover a very large temperature range for a variety of functional applications [6]. RMnSi compounds, where R is a rare earth element, are intermetallic compounds with two magnetic sublattices R and Mn, in which the magnetic atoms are located in layers separated by silicon layers in the order R-Si-Mn 2 -Si-R.…”

Investigation of Magnetic Entropy Change in Intermetallic Compounds SmNi3−xFex Based on Maxwell Relation and Phenomenological Model

“…Although the electronic configuration of the iron atom is different to that of nickel, the additional iron electrons are added in an antisymmetric way in the 3d band, which allows increasing the amplitude of exchange interactions. Several DFT calculations have demonstrated this effect; we can cite Reference [32]. Thirdly, the magnetovolumic effect: in fact, the Rietveld refinement results show that the lattice parameters increase with the concentration of iron.…”

Magnetocaloric effect and magnetic ordering in GdFe1−xTxSi, T = Cr, V, Ni

“…17 The magnetization curves for the GdFe 1Àx T x Si compounds, T = Cr, V, are typical of ferro-or ferrimagnets, similar to GdFe 1Àx Ti x Si. 16 Fe and Co ions are devoid of a localized magnetic moment in GdFeSi and GdCoSi. 19,20 Therefore, the Gd sublattice determines the magnetic structure of the GdFeSi and GdCoSi compounds.…”

“…The ab initio calculations of the electronic structure of GdFe 1Àx T x Si in this work are more accurate than those performed in the rigid band shift method for the GdFe 1Àx Ti x Si system in ref. 16 The equiatomic compounds GdCrSi and GdVSi do not exist. 12 GdNiSi crystallizes in the orthorhombic TiNiSi-type crystal structure.…”