Magnetooptical activity of spinel type crystals with complex mixed-valence lattice irregularities

Falkovskaya, L. D.; Fishman, A. Ya.; Mitrofanov, V. Ya.; Tsukerblat, Boris

doi:10.1016/j.physleta.2010.05.031

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…Many spinels are typical semiconductors with a rather narrow band gap (this is true especially for spinels containing the halogen atoms as anions), whereas the oxygen-based spinels have considerably wider band gaps and thus are typical dielectrics, which can be easily doped with rare earth and transition metal etc. Many spinels exhibit magnetic properties, which are a subject of many research works [23][24][25] with practical applications in view.…”

Section: Introductionmentioning

confidence: 99%

“…There are also numerous examples of doping spinel compounds with rare earth ions, e.g., ZnAl 2 O 4 :Ce 3+ , Tb 3+ , MgGa 2 O 4 :Pr 3+ , MgAl 2 O 4 :Nd 3+ , Dy 3+ , Sm 3+ , Er 3+ , Eu 3+ , and Tm 3+ doped MgIn 2 O 4 , etc. Many spinels exhibit magnetic properties, which are a subject of many research works − with practical applications in view.…”

Section: Introductionmentioning

confidence: 99%

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Lattice Parameters and Stability of the Spinel Compounds in Relation to the Ionic Radii and Electronegativities of Constituting Chemical Elements

2014

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A thorough consideration of the relation between the lattice parameters of 185 binary and ternary spinel compounds, on one side, and ionic radii and electronegativities of the constituting ions, on the other side, allowed for establishing a simple empirical model and finding its linear equation, which links together the above-mentioned quantities. The derived equation gives good agreement between the experimental and modeled values of the lattice parameters in the considered group of spinels, with an average relative error of about 1% only. The proposed model was improved further by separate consideration of several groups of spinels, depending on the nature of the anion (oxygen, sulfur, selenium/tellurium, nitrogen). The developed approach can be efficiently used for prediction of lattice constants for new isostructural materials. In particular, the lattice constants of new hypothetic spinels ZnRE 2 O 4 , CdRE 2 S4, CdRE 2 Se 4 (RE=rare earth elements) are predicted in the present paper. In addition, the upper and lower limits for the variation of the ionic radii, electronegativities and certain their combinations were established, which can be considered as stability criteria for the spinel compounds. The findings of the present paper offer a systematic overview of the structural properties of spinels and can serve as helpful guides for synthesis of new spinel compounds.3

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lattice Parameters and Stability of the Spinel Compounds in Relation to the Ionic Radii and Electronegativities of Constituting Chemical Elements

2014

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“…It is found that spinel ferrites have these magnetic traits. Spinel oxides have a general chemical formula AB 2 O 4 , where A and B cations engrosses tetrahedral and octahedral locations formed by the oxygen anions respectively [2][3][4][5]. The optical and mechanical properties of spinels are discussed in detail [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

First principle study of structural, electronic, ferromagnetic, mechanical and thermoelectric properties of ZnMn₂X₄ (X = S and Se) spinels

Algrafy¹,

Tariq²,

Mahmood³

et al. 2020

Phys. Scr.

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The structural, mechanical, electro-magnetic and transport attributes of ZnMn2X4 (X = S and Se) spinels are explored by density functional theory (DFT). The stability in structures are affirmed by negative formation energy. Moreover, structural optimizations have suggested studied compounds are stable in ferromagnetic phase. This phenomenon is also endorsed in electronic properties by band structures and density of states. In magnetic properties, ferromagnetic nature is discussed in detail by pd hybridization process, double exchange model, exchange energies and exchange constants. It is found that negative exchange constant N0β lower the ground energy of system which is in conformity to the double exchange mechanism. Furthermore, the magnetic moment shifting observed at Mn site to nonmagnetic sites (Zn, S/Se) is due to quantum coupling of electrons. Finally transport properties are evaluated by finding electrical conductivity, thermal conductivity, Seebeck coefficient and power factor. All these parameters are in support of the compounds, which suggest novel spintronic applications.

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The Theoretical Investigation of Electronic, Magnetic, and Thermoelectric Behavior of LiZ2O4 (Z = Mn, Fe, Co, and Ni) by Modified Becke and Johnson Approach

Mahmood

Hassan

Murtaza

et al. 2018

J Supercond Nov Magn

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Magnetooptical activity of spinel type crystals with complex mixed-valence lattice irregularities

Cited by 6 publications

References 5 publications

Lattice Parameters and Stability of the Spinel Compounds in Relation to the Ionic Radii and Electronegativities of Constituting Chemical Elements

Lattice Parameters and Stability of the Spinel Compounds in Relation to the Ionic Radii and Electronegativities of Constituting Chemical Elements

First principle study of structural, electronic, ferromagnetic, mechanical and thermoelectric properties of ZnMn₂X₄ (X = S and Se) spinels

The Theoretical Investigation of Electronic, Magnetic, and Thermoelectric Behavior of LiZ2O4 (Z = Mn, Fe, Co, and Ni) by Modified Becke and Johnson Approach

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Magnetooptical activity of spinel type crystals with complex mixed-valence lattice irregularities

Cited by 6 publications

References 5 publications

Lattice Parameters and Stability of the Spinel Compounds in Relation to the Ionic Radii and Electronegativities of Constituting Chemical Elements

Lattice Parameters and Stability of the Spinel Compounds in Relation to the Ionic Radii and Electronegativities of Constituting Chemical Elements

First principle study of structural, electronic, ferromagnetic, mechanical and thermoelectric properties of ZnMn2X4 (X = S and Se) spinels

The Theoretical Investigation of Electronic, Magnetic, and Thermoelectric Behavior of LiZ2O4 (Z = Mn, Fe, Co, and Ni) by Modified Becke and Johnson Approach

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First principle study of structural, electronic, ferromagnetic, mechanical and thermoelectric properties of ZnMn₂X₄ (X = S and Se) spinels