Impact of the Co Doping on the Structure, Magnetic Properties, and Phase Transition in Ni50-xCoxMn38Sn12 Ribbons

2021 ◽  
Vol 1035 ◽  
pp. 698-703
Author(s):  
Tarek Bachagha ◽  
Long Hou ◽  
Guan Hua Qin ◽  
Xi Li ◽  
Chao Jing ◽  
...  
Keyword(s):  
Phase Transition ◽  
Magnetic Properties ◽  
Heusler Alloys ◽  
Cobalt Content ◽  
Martensitic Transition ◽  
Co Doping ◽  
Sample Structure ◽  
Enthalpy And Entropy ◽  
The Impact ◽  
Magnetization Change

Three Heusler alloys, Ni50-xCoxMn38Sn12 (x = 1, 2, and 3), were elaborated by rapid solidification. The impact of the Co doping on the structure, magnetic properties, and phase transition in these alloys was studied. The structure of the Ni49Co1Mn38Sn12 and Ni48Co2Mn38Sn12 ribbons was martensite 14M monoclinic structure, while the Ni47Co3Mn38Sn12 sample structure was austenite cubic L21. The thermal analysis showed the impact of the substitution Ni by Co. It was noted that the temperatures of martensitic transition moved lower, and a decreases progressively of enthalpy and entropy changed. Likewise, an obvious increase in the temperature of Curie transition for austenite phase (TAC) was observed and a jump of magnetization change (ΔM) was detected, with increasing Cobalt content.

scholarly journals Cobalt Content Effect on the Magnetic Properties of Ni50-xCoxMn35.5In14.5 Annealed Ribbons

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5497
Author(s):  
Łukasz Dubiel ◽  
Andrzej Wal ◽  
Ireneusz Stefaniuk ◽  
Antoni Żywczak ◽  
Piotr Potera ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Phase Transition ◽  
Scanning Electron Microscopy ◽  
Magnetic Properties ◽  
Magnetic Phase ◽  
Heusler Alloys ◽  
Cobalt Content ◽  
Annealing Effect ◽  
X Ray ◽  
Scanning Electron

We present a study of the annealing effect and its influence on magnetic and structural properties for a series of Heusler alloys Ni50−xCoxMn35.5In14.5 (x=0,3,5) prepared in ribbon form. We studied the morphology and composition using scanning electron microscopy (SEM) equipped with an X-ray microanalyzer (EDX). The magnetic properties were determined by two methods: electron magnetic resonance (EMR) and vibrating sample magetometer (VSM). We found that cobalt content in the annealed samples reveals an additional magnetic phase transition at lower temperatures.

Structural and Magnetic Properties of Mn2NiZ (Z = Ga, In, Sn, Sb) Heusler Alloys from Ab Initio Calculations

2015 ◽  
Vol 233-234 ◽  
pp. 229-232 ◽  
Author(s):  
Vladimir V. Sokolovskiy ◽  
Mikhail A. Zagrebin ◽  
Y.A. Sokolovskaya ◽  
Vasiliy D. Buchelnikov
Keyword(s):  
Magnetic Properties ◽  
Ab Initio ◽  
Density Functional ◽  
Heusler Alloys ◽  
Martensitic Transition ◽  
Functional Theory ◽  
The Density Functional Theory ◽  
Structural And Magnetic Properties ◽  
Structure Calculations ◽  
Good Agreement

The structural and magnetic properties of Mn-based stoichiometric Heusler alloys have investigated by means of ab initio calculations in framework of the density functional theory. First principles electronic structure calculations have shown that Mn2NiZ (Z = Ga, In, Sn, Sb) alloys are ferrimagnets with antiparallel alignment between the Mn atoms. The martensitic transition can be realized in Mn2NiGa and Mn2NiSn alloys with tetragonal ratio of 1.27 and 1.16, respectively. Calculated properties are in a good agreement with available experimental data.

scholarly journals Structural, Electronic and Magnetic Properties of Mn2Co1-xVxZ (Z = Ga, Al) Heusler Alloys: An Insight from DFT Study

2021 ◽  
Vol 7 (12) ◽  
pp. 159
Author(s):  
Fatima Abuova ◽  
Talgat Inerbaev ◽  
Aisulu Abuova ◽  
Nurpeis Merali ◽  
Nurgul Soltanbek ◽  
...  
Keyword(s):  
Experimental Data ◽  
Phase Transition ◽  
Magnetic Properties ◽  
Lattice Constant ◽  
Magnetic Moment ◽  
Heusler Alloys ◽  
Nonlinear Behavior ◽  
Lattice Parameters ◽  
Space Group ◽  
Electronic And Magnetic Properties

Structural, electronic, and magnetic properties of Mn2Co1-xVxZ (Z = Ga, Al, x = 0, 0.25, 0.5, 0.75, 1) Heusler alloys were theoretically investigated for the case of L21 (space group Fm3¯m), L21b (L21 structure with partial disordering between Co and Mn atoms) and XA (space group F4¯3m) structures. It was found that the XA structure is more stable at low V concentrations, while the L21 structure is energetically favorable at high V concentrations. A transition from L21 to XA ordering occurs near x = 0.5, which qualitatively agrees with the experimental results. Comparison of the energies of the L21b and XA structures leads to the fact that the phase transition between these structures occurs at x = 0.25, which is in excellent agreement with the experimental data. The lattice parameters linearly change as x grows. For the L21 structure, a slight decrease in the lattice constant a was observed, while for the XA structure, an increase in a was found. The experimentally observed nonlinear behavior of the lattice parameters with a change in the V content is most likely a manifestation of the presence of a mixture of phases. Almost complete compensation of the magnetic moment was achieved for the Mn2Co1-xVxZ alloy (Z = Ga, Al) at x = 0.5 for XA ordering. In the case of the L21 ordering, it is necessary to consider a partial disorder of atoms in the Mn and Co sublattices in order to achieve compensation of the magnetic moment.

scholarly journals Synergistic effect of trivalent (Gd3+, Sm3+) and high-valent (Ti4+) co-doping on antiferromagnetic YFeO3

RSC Advances ◽  
2020 ◽  
Vol 10 (37) ◽  
pp. 22183-22195 ◽  
Author(s):  
P. S. J. Bharadwaj ◽  
Swarup Kundu ◽  
Vijay Sai Kollipara ◽  
Kalidindi B. R. Varma
Keyword(s):  
Magnetic Properties ◽  
Synergistic Effect ◽  
Co Doping ◽  
Optical And Magnetic Properties ◽  
High Valent ◽  
The Impact

The work investigates the impact of doping (Sm3+, Gd3+ at Y3+ site and Ti4+ at Fe3+ site respectively) on structural, optical and magnetic properties of YFeO3.

Metamagnetic Shape Memory Effect and Magnetic Properties of Ni-Mn Based Heusler Alloys

2011 ◽  
Vol 684 ◽  
pp. 139-150 ◽  
Author(s):  
Ryosuke Kainuma ◽  
W. Ito ◽  
R.Y. Umetsu ◽  
V.V. Khovaylo ◽  
T. Kanomata
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Magnetic Properties ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Heusler Alloys ◽  
Parent Phase ◽  
Martensite Phase ◽  
Basic Information

In some Ni-Mn-In- and Ni-Mn-Sn-based Heusler-type alloys, martensitic transformation from the ferromagnetic parent phase to the paramagnetic martensite phase appears and magnetic field-induced reverse transformation, namely, metamagnetic phase transition, is detected. In this paper, the metamagnetic shape memory effect due to the metamagnetic phase transition and the magnetostress effect in the Ni-Co-Mn-In alloys are introduced and the phase diagrams of Ni50Mn50-yXy (X: In, Sn, Sb) alloys are shown as basic information. Furthermore, the magnetic properties of both the parent and martensite phases in the Ni-Mn-In- and Ni-Mn-Sn-based metamagnetic shape memory alloys are also reviewed.

Effect of Zn-doping on the phase transition and magnetic properties of Heusler alloys Ni 2 MnGa 1−x Zn x (x = 0, 0.25, 0.5, 0.75 and 1)

2018 ◽  
Vol 464 ◽  
pp. 65-70 ◽  
Author(s):  
Zhaoning Ni ◽  
Xingmiao Guo ◽  
Qingshuai Li ◽  
Zhengyu Liang ◽  
Hongzhi Luo ◽  
...  
Keyword(s):  
Phase Transition ◽  
Magnetic Properties ◽  
Heusler Alloys ◽  
Zn Doping

The Impact of the Strip Geometry on the Magnetic Properties of Anisotropic Electrical Sheet Steel

2017 ◽  
Vol 83 (10) ◽  
pp. 31-35
Author(s):  
V. V. Gubernatorov ◽  
◽  
T. S. Sycheva ◽  
S. A. Ol’kov ◽  
◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Sheet Steel ◽  
Strip Geometry ◽  
The Impact
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