First-Principles Investigation on Phase Stability, Elastic and Magnetic Properties of Boron Doping in Ni-Mn-Ti Alloy

Author(s):  
Chenchen Xiong ◽  
Jing Bai ◽  
Yansong Li ◽  
Jianglong Gu ◽  
Xinzeng Liang ◽  
...  
2019 ◽  
Vol 9 (5) ◽  
pp. 964 ◽  
Author(s):  
Haopeng Zhang ◽  
Wenbin Liu ◽  
Tingting Lin ◽  
Wenhong Wang ◽  
Guodong Liu

The structural stability and magnetic properties of the cubic and tetragonal phases of Mn3Z (Z = Ga, In, Tl, Ge, Sn, Pb) Heusler alloys are studied by using first-principles calculations. It is found that with the increasing of the atomic radius of Z atom, the more stable phase varies from the cubic to the tetragonal structure. With increasing tetragonal distortion, the magnetic moments of Mn (A/C and B) atoms change in a regular way, which can be traced back to the change of the relative distance and the covalent hybridization between the atoms.


2020 ◽  
Vol 101 (17) ◽  
Author(s):  
Mark Fedorov ◽  
Jan S. Wróbel ◽  
Antonio Fernández-Caballero ◽  
Krzysztof J. Kurzydłowski ◽  
Duc Nguyen-Manh

2016 ◽  
Vol 873 ◽  
pp. 3-7
Author(s):  
Mei Jie Yang ◽  
Jing Bai ◽  
Ze Li ◽  
Teng Fei Qiu

The effects of Cu addition on the crystal structure, phase stability and magnetic properties of Ni8Mn4-xGa4Cux (x=0, 0.5, 1, 1.5 and 2) ferromagnetic shape memory alloys are systematically investigated by first-principles calculations. The formation energy results indicate that the added Cu preferentially occupies the Mn sites in Ni2MnGa alloy. The formation energy results indicate that ferromagnetic austenite is more stable than the paramagnetic one. The ferromagnetic state becomes instable and paramagnetic state becomes more stable when Mn is gradual substituted by Cu. Furthermore, the electronic density of states gives rise to the difference in the magnetic properties.


2015 ◽  
Vol 08 (06) ◽  
pp. 1550064 ◽  
Author(s):  
Lin Feng ◽  
Wenxing Zhang ◽  
Enke Liu ◽  
Wenhong Wang ◽  
Guangheng Wu

The phase stability, electronic structure and magnetism of Pt 2-x Mn 1+x In (x = 0, 0.25, 0.5, 0.75, 1) alloys are studied by first-principles calculations. The possible magnetic martensitic transformation in this series has been investigated. For all the five compounds, the energy minimums occur around c/a = 1.30, and the energy differences between the austenitic and martensitic phases are large enough to overcome the resistance of phase transformation. By comparing the electronic structures of austenitic and martensitic phases, we can find that the phase stability is enhanced by the martensitic transformation. The magnetic structures of the austenitic and martensitic phases are also discussed.


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