Analysis of L21-ordering in full-Heusler Co2FeSi alloy thin films formed by rapid thermal annealing

Abstract

The authors developed a new analysis approach for evaluation of atomic ordering in full-Heusler alloys, which is extension of the commonly used Webster model. Our model can give accurate physical formalism for the degree of atomic ordering in the L21 structure, including correction with respect to the fully disordered A2 structure, i.e., the model can directly evaluate the degree of L21-ordering under a lower ordering structure than the complete B2-ordering structure. The proposed model was applied to full-Heusler Co2FeSi alloy thin films formed by rapid thermal annealing. The film formed at TA = 800 C showed a relatively high degree of L21-ordering of 83 % under a high degree of B2-ordering of 97 %.

16 pages, 4 figures

References in corpus (2)

• Geometric, electronic, and magnetic structure of Co${}_2$FeSi: Curie temperature and magnetic moment measurements and calculations
• Characterization of half-metallic L2_1-phase Co_2FeSi full-Heusler alloy films formed by rapid thermal annealing

Cited by in corpus (25)

• Magnetic and transport properties of Mn2CoAl oriented thin films
• Ferrimagnetism and disorder in epitaxial Mn(2-x)Co(x)VAl thin films
• Temperature-dependent Gilbert damping of Co2FeAl thin films with different degree of atomic order
• Anomalous Hall effect from gapped nodal line in Co2FeGe Heusler compound
• Quantitative analysis of atomic disorders in full-Heusler Co2FeSi alloy thin films using x-ray diffraction with Co-Ka and Cu-Ka sources
• Experimental realization of a semiconducting full Heusler compound: Fe2TiSi
• Full-Heusler Co2FeSi alloy thin films with perpendicular magnetic anisotropy induced by MgO-interface
• Structural ordering driven anisotropic magnetoresistance, anomalous Hall resistance and its topological overtones in full-Heusler Co2MnSi thin films
• Electronic Structure and Magnetic Properties of Half-metallic Ferrimagnet Mn${}_2$VAl Probed by Soft X-ray Spectroscopies
• Combinatorial tuning of electronic structure and thermoelectric properties in Co${}_2$MnAl${}_{1-x}$Si${}_x$ Weyl semimetals
• Magnetoelastic coupling induced magnetic anisotropy in Co${}_2$(Fe/Mn)Si thin films
• Possible spin gapless semiconductor type behaviour in CoFeMnSi epitaxial thin films
• Insights into the electronic structure of Co2FeSi from x-ray magnetic linear dichroism
• High TMR ratio in Co2FeSi and Fe2CoSi based magnetic tunnel junctions
• Multiple phases in sputtered Cr2CoGa films
• Structural and electronic properties of the spin-filter material CrVTiAl with disorder
• Ultrafast magnetization dynamics in half-metallic Co${}_2$FeAl Heusler alloy
• Negative spin polarization of Mn2VGa probed by tunnel magnetoresistance
• Fermi Level Controlled Ultrafast Demagnetization Mechanism in Half-Metallic Heusler Alloy
• Epitaxial germanidation of full-Heusler Co2FeGe alloy thin films formed by rapid thermal annealing
• Residual disorder and diffusion in thin Heusler alloy films
• Strain glass versus antisite disorder induced ferromagnetic state in Fe doped Ni-Mn-In Heusler martensites
• Phase separation in Fe2CrSi thin films
• Structural properties of Co${}_2$TiSi films on GaAs(001)
• Characterization of L21 order in Co2FeSi thin films on GaAs