Effect of film thickness on soft magnetic behavior of Fe2CoSi Heusler alloy for spin transfer torque device applications

Asvini, V.; Saravanan, G. Sai; Kalaiezhily, R. K.; Raja, M. Manivel; Ravichandran, K.

doi:10.1063/1.5029121

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…H c is about 200 Oe at room temperature, which is relatively high compared to epitaxial ternary and binary silicides, exhibiting H c value lower by one order of magnitude. [60][61][62] Formation of ternary Fe-Co-Si alloys is unlikely. Since the Co atoms were deposited after the Fe ones, one can guess the system with a thin Co layer atop the FeSi alloy.…”

Section: Magnetic Propertiesmentioning

confidence: 99%

Room Temperature Ferromagnetism in Graphene/SiC(0001) System Intercalated by Fe and Co

Filnov,

Estyunin,

Klimovskikh

et al. 2023

Physica Rapid Research Ltrs

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The utilization of graphene on silicon carbide (SiC) substrates holds substantial promise for advancements in spintronics and nanoelectronics. Furthermore, incorporating magnetic metals provides an optimal framework for probing fundamental physical phenomena. The approach to developing such systems is in situ intercalation of graphene with magnetic metals. Herein, the electronic structure is analyzed and the magnetic properties of the system are synthesized by the thermal decomposition of 6H‐SiC(0001) surface and subsequent intercalation of graphene with cobalt (Co) and iron (Fe) atoms. X‐ray photoemission spectroscopy and low‐energy electron diffraction are employed to control the synthesis and metal intercalation processes. The morphological characteristics of the synthesized system are studied by means of atomic force microscopy. The findings derived from magneto‐optic Kerr effect measurements reveal a homogeneous ferromagnetic ordering at room temperature. Angle‐resolved photoemission spectroscopy is used to ascertain the impact of intercalation on graphene's electronic structure. The results of this study are essential for the development of graphene‐based spintronics and nanoelectronic devices as well as for fundamental studies in magnetic graphene systems.

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Section: Magnetic Propertiesmentioning

confidence: 99%

Room Temperature Ferromagnetism in Graphene/SiC(0001) System Intercalated by Fe and Co

Filnov,

Estyunin,

Klimovskikh

et al. 2023

Physica Rapid Research Ltrs

View full text Add to dashboard Cite

show abstract

“…The classifications include pnictides and its associated materials, [ 14 ] chalcogenides linked with wurtzite conformation, [ 15 ] ferrites, [ 16 ] oxides, [ 17 ] perovskites, [ 18 ] and novel compounds [ 19,20 ] demonstrating half metallicity and good thermoelectric response but on the other hand the smart materials (Heusler materials) attaining inclinations over other classifications due to their better stability and good thermoelectric presentation. The latest experimental investigations in Heusler materials associated with thin films including Cr 2 CoGa, [ 21 ] Co 2 MnGe, [ 22 ] Co 2 FeAl, [ 23 ] Fe 2 CoSi, [ 24 ] Fe 2 CrGa, [ 25 ] Co 2 MnSi, [ 26 ] Co 2 FeSn, [ 27 ] and Cu 2 MnX (X = Al, Si, Ge, Sn) [ 28 ] also hold certain innovative properties. By the inspiration of the said properties and keeping in consideration the vital applications of the present set of Heusler materials, we have predicted Cobalt‐based full‐Heusler alloys.…”

Section: Introductionmentioning

confidence: 99%

Inspecting the Thermoelectric Response and Mechanical Stability of Novel Cobalt‐Based Heusler Alloys: A DFT Insight

Sofi

Alshahrani

Morsi

et al. 2022

Physica Status Solidi (b)

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The potential of Heusler materials to provide interesting aspects predominantly of vital physical properties along with typical variations has extended their prospects for thermoelectric applicability. Herein, highly precise and high‐throughput density functional theory (DFT) calculations along with Boltzmann transport simulation scheme are intensely applied to deliver the numerous physical properties of two Cobalt‐based Heusler materials. The geometric structural optimization of both these alloys suitably approves the cubic crystalline geometry at elevated temperatures. The electronic band profile validates the half‐metallic behavior. The fetched density of states and band occupation reflect the ferromagnetic half‐metallic character of the materials. The calculated elastic parameters reveal that the presented set of Heusler materials is mechanically stable holding ductile nature. These cobalt materials exhibit anisotropic performance for both longitudinal and transverse velocities, so these demonstrate directional‐dependent velocities. The utmost significant lattice part of thermal conductivity is accurately figured out by the help of Slack's equation. The current exploration demonstrates spin half metallicity as well as good value of transport parameters, which opens up a route typical for numerous research areas like thermoelectrics and spintronic applicability.

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“…Therefore, only one channel of electrons behaves as a conductor whereas the other channel behaves as a semiconductor. In spintronic applications, a HMF that shows a full spin polarization is an ideal material due to the possibility of using it in different devices such as magnetic tunneling junction [12], spin light emission diodes [13]random‐access memories [10, 14], and spin transfer torque applications [15]. Full spin polarization was envisioned in many types of materials such as dilute magnetic compounds [16], magnetic oxides [17], and Heusler alloys [18, 19].…”

Section: Introductionmentioning

confidence: 99%

Large half‐metallic band gap in a new series CoRhZrZ (Z = Pb, B, Ga, In, Al, Sn, Si) quaternary Heusler

Lazizi

Mahfoud

Mokhtari

et al. 2022

Int J of Quantum Chemistry

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The structural, electronic, and magnetic properties of a new series CoRhZrZ quaternary Heusler were investigated theoretically by using the density of function theory calculation. All the compounds were found to be stable at the ferromagnetic phase.The magnetic moments of the compound show a positive value ranging from 1 to 2 μB. In addition, the electronic structure of CoRhZrSi shows a large value of the half-metallic band gap of 0.34 eV. This reflects the high thermal stability of the compound at high temperatures and allowing for a wide range of applications of this material in varying domains, especially those requiring high thermal stability such as the oil and gas sectors, geological applications, and space applications.

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Effect of film thickness on soft magnetic behavior of Fe2CoSi Heusler alloy for spin transfer torque device applications

Cited by 11 publications

References 8 publications

Room Temperature Ferromagnetism in Graphene/SiC(0001) System Intercalated by Fe and Co

Room Temperature Ferromagnetism in Graphene/SiC(0001) System Intercalated by Fe and Co

Inspecting the Thermoelectric Response and Mechanical Stability of Novel Cobalt‐Based Heusler Alloys: A DFT Insight

Large half‐metallic band gap in a new series CoRhZrZ (Z = Pb, B, Ga, In, Al, Sn, Si) quaternary Heusler

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