Influence of the Cu substitution on magnetic properties of Ni–Mn–Sn–B shape memory ribbons

Кират, Г.; Aksan, M.A.

doi:10.1007/s00339-020-04251-5

Cited by 7 publications

(2 citation statements)

References 48 publications

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“…As discussed above, a first-order structural phase transition occurs between the austenite and martensite phases during MT. While the austenite phase usually has a cubic L21 crystal structure, the martensite phase may have monoclinic 10M and 14M, orthorhombic 4O or unmodulated double tetragonal L10 crystal structures depending on the composition and temperature [8][9][10][11]. XRD patterns of the V0, V1, V2 and V3 samples at RT are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Variation of Electrical Resistivity During Magnetic Field-Induced Martensitic Transformation in Vanadium added NiMnSnB alloys

Кират

2023

Turkish Journal of Science and Technology

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In this study, the structural and electrical properties of Ni49-xVxMn37Sn12B2 (x = 0, 1, 2, and 3) ferromagnetic shape memory alloys were investigated. According to XRD analyzes at room temperature, the x=0 sample was in the martensite phase, the x=1 and 2 samples were in the mixture phase, and the x=3 sample was in the austenite phase. The resistivity analyses depend on temperature showed that all samples exhibited martensitic transformation and the phase transformation temperature decreased with V doping. Magnetoresistance (MR) values were calculated using ρ-T curves performed under 0 T and 1 T magnetic fields. The observed negative MR is consistent with Kataoka's s-d model. As-Af interval was determined and M-H measurements were made at constant temperatures determined in this interval. The results were attributed to the magnetic field-induced phase transformation (MFIPT). In order to examine the effects of MFIPT on the electrical resistivity, the resistivity depend on magnetic field was measured using the same thermal process. The overlapping of the curves in the high magnetic field revealed that the resistivity decreased due to the MFIPT as well as the MR.

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Section: Resultsmentioning

confidence: 99%

Variation of Electrical Resistivity During Magnetic Field-Induced Martensitic Transformation in Vanadium added NiMnSnB alloys

Кират

2023

Turkish Journal of Science and Technology

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“…The characteristic anomaly near 100 K on the ZFC curves is typically attributed to the blocking temperature, T B . The second anomaly located near 200 K (the point where the ZFC and FC M(T) curves split) is explained by the coexistence of the FM and AFM interactions [60]. Below blocking temperature, the exchange bias effect (EB) is observed.…”

Section: Influence Of CD On Magnetic Properties Of Alloysmentioning

confidence: 99%

Cd-doping effects in Ni–Mn–Sn: experiment and ab-initio study

Ghazinezhad¹,

Kameli²,

Varzaneh³

et al. 2022

J. Phys. D: Appl. Phys.

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Martensitic transformation (MT), magnetic properties, and magnetocaloric effect (MCE) in Heusler-type Ni47Mn40Sn13-xCdx (x = 0, 0.75, 1, 1.25 at. %) metamagnetic shape memory alloys (MetaMSMAs) are investigated, both experimentally and theoretically, as a function of doping with Cd. Ab-initio computations reveal that the ferromagnetic (FM) configuration is energetically more favorable in the cubic phase than the antiferromagnetic (AFM) state in undoped and doped alloys as well. Moreover, it is revealed that the alloys in the ground state exhibit a tetragonal structure confirming the existence of MT, in agreement with the experiments. It was indicated, both in theory and practice, that a reduction of the unit cell volume and an increase of the MT temperature as a function of the Cd doping. Indirect estimations of MCE in the vicinity of MT were carried out by using thermomagnetization curves measured under different magnetic fields up to 5 T. The results demonstrated that the doped alloys exhibit enhanced values of the inverse MCE comparable with those of Ni-Mn-based MetaMSMAs. Maximum magnetic entropy change in a field change of 2 T increases from 3.0 for the undoped alloy to 3.4 and 5.0 for the alloys doped with 0.75 and 1 at.% of Cd, respectively. The inverse and conventional MCE were explored by direct measurements of the adiabatic temperature change under the magnetic field change of 1.96 T. The Cd doping increased the maximum of inverse MCE by nearly 78% from 0.9 K to 1.6 K for the undoped and doped alloys, respectively. The results depicted that Cd doping can effectively tailor the structural, magnetic, and MCE properties of the Ni–Mn–Sn MetaMSMAs.

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Improving the Magnetocaloric Performance of NiMnSnB Heusler Alloys with V Substitutions

Кират

2022

J Supercond Nov Magn

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Influence of the Cu substitution on magnetic properties of Ni–Mn–Sn–B shape memory ribbons

Cited by 7 publications

References 48 publications

Variation of Electrical Resistivity During Magnetic Field-Induced Martensitic Transformation in Vanadium added NiMnSnB alloys

Variation of Electrical Resistivity During Magnetic Field-Induced Martensitic Transformation in Vanadium added NiMnSnB alloys

Cd-doping effects in Ni–Mn–Sn: experiment and ab-initio study

Improving the Magnetocaloric Performance of NiMnSnB Heusler Alloys with V Substitutions

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