Electronic, structural, and magnetic properties of the quaternary Heusler alloy NiCoMnZ (Z=Al, Ge, and Sn)

Halder, Madhumita; Mukadam, M. D.; Суреш, К. Г.; Yusuf, S.M.

doi:10.1016/j.jmmm.2014.10.107

Cited by 57 publications

(25 citation statements)

References 27 publications

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“…Structural analysis of these alloys was done using powder XRD as well as neutron diffraction measurements by Halder et al [54]. The Rietveld refinement of the room temperature powder XRD data revealed that all the alloys formed in single phase with cubic…”

Section: F Nicomnz (Z = Al Ge and Sn) Alloysmentioning

confidence: 99%

“…The SR (111) and (200) were found to be absent for NiCoMnAl and NiCoMnGe, while they were present in NiCoMnSn. The appearance of the (111) [54] concluded that B2 type structural disorder is present in the case of NiCoMnAl.…”

Section: F Nicomnz (Z = Al Ge and Sn) Alloysmentioning

confidence: 99%

“…In order to get further insight into the order/disorder for NiCoMnAl and NiCoMnGe alloys, Halder et al [54] performed model calculations with varying amounts of disorder.…”

Section: F Nicomnz (Z = Al Ge and Sn) Alloysmentioning

confidence: 99%

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Equiatomic quaternary Heusler alloys: A material perspective for spintronic applications

Bainsla

Суреш

2016

Applied Physics Reviews

268

104

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Half-metallic ferromagnetic (HMF) materials show high spin polarization and are therefore interesting to researchers due to their possible applications in spintronic devices. In these materials, while one spin sub band has a finite density of states at the Fermi level, the other sub band has a gap. Because of their high Curie temperature (TC) and tunable electronic been reported in a few systems, which are also discussed in this review. Thus, this review presents a consolidated picture of the magnetic and spintronic properties of this important, but relatively new class of Heusler alloys. It is expected that this will stimulate further interest in these alloys, thereby paving the way for the identification of more HMF and SGS materials. As a result of this, it is expected that more efficient spintronic devices using these alloys would emerge in the near future.

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Section: F Nicomnz (Z = Al Ge and Sn) Alloysmentioning

confidence: 99%

Section: F Nicomnz (Z = Al Ge and Sn) Alloysmentioning

confidence: 99%

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Equiatomic quaternary Heusler alloys: A material perspective for spintronic applications

Bainsla

Суреш

2016

Applied Physics Reviews

268

104

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“…The unit cell for the Y-type structure has the following occupied Wyckoff positions: X = (1/2 1/2 1/2), X = (0 0 0), Y = (1/4 1/4 1/4), Z = (1/4 1/4 1/4). Several recent studies regarding quaternary Heusler alloys have demonstrated that these compounds exhibit HMF [7][8][9][10]. Considerable theoretical work has been performed on quaternary Heusler compounds, particularly Co-based compounds.…”

Section: Introductionmentioning

confidence: 99%

Structural stability, electronic structure and magnetic properties of the new hypothetical half-metallic ferromagnetic full-Heusler alloy CoNiMnSi

Elahmar

Rached

et al. 2016

Materials Science-Poland

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We investigated the structural stability as well as the mechanical, electronic and magnetic properties of the Full-Heusler alloy CoNiMnSi using the full-potential linearized augmented plane wave (FP-LAPW) method. Two generalized gradient approximations (GGA and GGA + U) were used to treat the exchange-correlation energy functional. The ground state properties of CoNiMnSi including the lattice parameter and bulk modulus were calculated. The elastic constants (C ij ) and their related elastic moduli as well as the thermodynamic properties for CoNiMnSi have been calculated for the first time. The existence of half-metallic ferromagnetism (HM-FM) in this material is apparent from its band structure. Our results classify CoNiMnSi as a new HM-FM material with high spin polarization suitable for spintronic applications.

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“…In such Heusler alloys, one of the X atoms is completely substituted by another transition metal element. There are only few examples known for such quaternary alloys, CoFeMnZ (Z ¼Al, Ga, Si and Ge) [20,21], CoFeCrAl [22], CoFeMnSi [23] NiCoMnZ (Z ¼Al, Ge and Sn) [24] NiFeMnGa, NiCoMnGa and CuCoMnGa [25] CoFe 1 þ x Ti 1 À x Al and CoMn 1 þ x V 1 À x Al [26,27]. Ordered quaternary Heusler alloys are formed when the occupancy of each atom at the four Wyckoff positions is unity.…”

Section: Introductionmentioning

confidence: 99%

Structural and magnetic properties of a new and ordered quaternary alloy MnNiCuSb (SG: F4¯3m)

Haque

Thakur

Ghara

et al. 2016

Journal of Magnetism and Magnetic Materials

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a b s t r a c tWe have synthesized a new crystallographically ordered quaternary Heusler alloy, MnNiCuSb. The crystal structure of the alloy has been determined by Rietveld refinement of the powder X-ray diffraction data. This alloy crystallizes in the LiMgPdSb type structure with F43m space group. MnNiCuSb is a ferromagnet with a high T C $ 690 K and magnetic moment of 3.85 mB/f.u. Besides this we have also studied two other off-stoichiometric compositions; one Cu rich and the other Ni rich (MnNi 0.9 Cu 1.1 Sb and MnNi 1.1 Cu 0.9 Sb) which are also ferromagnets. It must be stressed that MnNiCuSb is one of the very few known, non-Fe containing quaternary Heusler alloys with 1:1:1:1 composition.

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Electronic, structural, and magnetic properties of the quaternary Heusler alloy NiCoMnZ (Z=Al, Ge, and Sn)

Cited by 57 publications

References 27 publications

Equiatomic quaternary Heusler alloys: A material perspective for spintronic applications

Equiatomic quaternary Heusler alloys: A material perspective for spintronic applications

Structural stability, electronic structure and magnetic properties of the new hypothetical half-metallic ferromagnetic full-Heusler alloy CoNiMnSi

Structural and magnetic properties of a new and ordered quaternary alloy MnNiCuSb (SG: F4¯3m)

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