Understanding the magnetic, electronic and optical properties of ternary rare earth intermetallic compound HoNiSi

Gupta, Sachin; Суреш, К. Г.; Lukoyanov, A. V.; Knyazev, Yu. V.; Kuz’min, Yu. I.

doi:10.1016/j.jallcom.2015.08.036

Cited by 13 publications

(3 citation statements)

References 23 publications

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“…RNiIn (R= La, Ce, Nd, Gd-Tm) compounds crystallize in ZrNiAl type hexagonal structures [97][98][99][100][101]. RNiSi with light rare earths (R=La, Ce, Nd) compounds crystallize in LaPtSi-type tetragonal structure, whereas compounds with heavy rare earths (R=Gd-Lu) are characterized by TiNiSi-type orthorhombic crystal structures [76,[102][103][104][105][106]. RNiGe (R=Ce, Gd-Tm, Y) compounds show TiNiSi type orthorhombic crystal structure [107,108].…”

Section: Rnix Compoundsmentioning

confidence: 99%

Magnetic phenomena in equiatomic ternary rare earth compounds

Gupta

2023

Handbook of Magnetic Materials

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Section: Rnix Compoundsmentioning

confidence: 99%

Magnetic phenomena in equiatomic ternary rare earth compounds

Gupta

2023

Handbook of Magnetic Materials

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“…In ErNiSi, a high value of magnetocaloric effect and MR were found at temperatures up to 20 K [10,11]. HoNiSi undergoes an AFM-FM transition under the influence of magnetic field, and displays a giant reversible magnetocaloric effect at a relatively low field [12,13]. An AFM -paramagnetic (PM) transition was observed in HoNiGa near Néel temperature 10 K or under the influence of a field and with large MCE and perfect reversibility [14].…”

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“…GdFeAl 1−x Si x [16]. Some RNiSi compounds are reported to have giant or large MCE [2,10,12,13], then doping with p elements might be a mechanism for boosting MCE to the higher values. In our work, we performed theoretical calculations of the electronic structure and magnetic properties for the modelled GdNiSi 1−x Al x compositions for x = 0−0.3 to advance understanding of the electronic structure and changes of the magnetic orderings.…”

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Antiferromagnetic-to-Ferromagnetic Transition in the GdNiSi1 – xAlx Compound

Mukhachev,

Lukoyanov,

Kuchin

2024

Jetp Lett.

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In this work, the electronic structure and magnetic properties of GdNiSi have been investigated within the framework of theoretical DFT + U method. The antiferromagnetic ordering of the Gd moments was obtained as the ground state, whereas Ni and Si have negligible magnetic moments. An antiferromagnetic-to-ferromagnetic transition was found when GdNiSi is doped with Al in our theoretical calculations. The antiferromagnetic-to-ferromagnetic transition takes place in the Gd sublattice, the magnetic moments at the Gd ions remain the same but the type of magnetic ordering changes. It was found that even at concentrations as low as x = 0.1, the ferromagnetic ordering in the Gd sublattice is more favorable in total energy as the ground state which can be ascribed to the shortening of Gd-Gd distances and the oscillating behavior of the Ruderman–Kittel–Kasuya–Yosida interaction in the Al-doped compositions. The electronic structure demonstrates significant changes in the vicinity of the localized Gd 4f states that confirms the presence of the antiferromagnetic-to-ferromagnetic transition using our theoretical results for Al x$$ \geqslant $$ 0.1 in good agreement with the previous experimental magnetic results.

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