Browsing by Author "Candan, A."

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Citation - WoS: 30
Citation - Scopus: 32
Equiatomic Quaternary Heusler Compounds Tivfez (z=al, Si, Ge): Half-Metallic Ferromagnetic Materials
(Elsevier Science Sa, 2021) Gencer, A.; Surucu, O.; Usanmaz, D.; Khenata, R.; Candan, A.; Surucu, G.
Equiatomic quaternary Heusler compounds (EQHCs) are very promising materials for spintronic applications due to their excellent electronic and magnetic properties. In this study, structural, electronic, magnetic, mechanic, and dynamic properties of TiVFeZ (Z=Al, Si, Ge) EQHCs are investigated. Three nonequivalent structural configurations of alpha, beta, and gamma type structures are considered. The gamma is defined as the most stable phase for all these compounds and has a half-metallic character. The predicted Curie temperatures of TiVFeAl, TiVFeSi, and TiVFeGe compounds are about 488 K, 256 K, and 306 K, respectively. We also show that TiVFeZ (Z=Al, Si, Ge) have thermodynamic, dynamic, and mechanical stabilities. The presented results reveal that these compounds are potential materials for spintronics applications. (C) 2021 Elsevier B.V. All rights reserved.
Citation - WoS: 5
Citation - Scopus: 4
Pressure and Spin Effect on the Stability, Electronic and Mechanic Properties of Three Equiatomic Quaternary Heusler (fevhfz, Z = Al, Si, and Ge) Compounds
(Elsevier, 2021) Surucu, G.; Gencer, A.; Surucu, O.; Usanmaz, D.; Candan, A.
In this paper, three equiatomic quaternary Heusler compounds -FeVHfZ (Z = Al, Si, and Ge) - are investigated for their structural, magnetic, electronic, mechanic, and lattice dynamic properties under pressure effect. These compounds are optimized for under three structural types and three magnetic phases: beta is the most stable structure with ferromagnetic phase. The electronic properties reveal that FeVHfAl is a half-metal, and that FeVHfSi and FeVHfGe are spin gapless semiconductors. In addition to electronic band structure, possible hybridization and partial density of states are presented. Furthermore, the mechanical properties are studied, and the three-dimensional direction-dependent mechanical properties are visualized under varying pressure effects. Our results reveal the half-metal and spin gapless semiconductor nature of the ferromagnetic FeVHfZ com-pounds, making them promising materials for spintronics applications.