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Effect of the temperature and magnetic field induced martensitic transformation (MT) on the electronic structure and some physical properties of bulk Fe$_{45.2}$Mn$_{25.9}$Ga$_{28.9}$ Heusler alloy has been investigated. {According to the…

材料科学 · 物理学 2019-02-21 Y. V. Kudryavtsev , N. V. Uvarov , A. E. Perekos , J. Dubowik , L. E. Kozlova

The effect of pressure on the magnetic and the magnetocaloric properties around the martensitic transformation temperature in NiCoMnSb Heusler alloy has been studied. The martensitic transition temperature has significantly shifted to…

强关联电子 · 物理学 2010-06-02 Ajaya K. Nayak , K. G. Suresh , A. K. Nigam , A. A. Coelho , S. Gama

The magnetic and thermodynamic properties of a Ni2.19Mn0.81Ga alloy with coupled magnetic and structural (martensitic) phase transitions were studied experimentally and theoretically. The magnetocaloric effect was measured by a direct…

Ni$_{50}$Mn$_{34}$In$_{16}$ undergoes a martensitic transformation around 250 K and exhibits a field induced reverse martensitic transformation and substantial magnetocaloric effects. We substitute small amounts Ga for In, which are…

A systematic study of magnetic properties of Ni2+xMn1-xGa (0 \le x \le 0.19) Heusler alloys undergoing structural martensite-austenite transformations while in ferromagnetic state has been performed. From measurements of spontaneous…

材料科学 · 物理学 2009-11-10 V. V. Khovailo , V. Novosad , T. Takagi , D. A. Filippov , R. Z. Levitin , A. N. Vasilev

We report magnetization and differential thermal analysis measurements as a function of pressure accross the martensitic transition in magnetically superelastic Ni-Mn-In alloys. It is found that the properties of the martensitic…

We report a systematic study on the magneto-structural transition in Mn-rich Fe-doped Mn-Fe-Ni-Sn(Sb/In) Heusler alloys by keeping the total valence electron concentration (e/a ratio) fixed. The martensitic transition (MT) temperature is…

材料科学 · 物理学 2019-01-30 Arup Ghosh , Rajeev Rawat , Arpan Bhattacharyya , Guruprasad Mandal , A. K. Nigam , Sunil Nair

In this paper, we present temperature and field dependent neutron diffraction (ND) study to unravel the structural and the magnetic properties in Ni50Mn38Sb12 Heusler system. This alloy shows martensitic transition from high temperature…

材料科学 · 物理学 2017-02-06 Roshnee Sahoo , Amitabh Das , Norbert Stuesser , K. G. Suresh

Using first-principles calculations based on density functional theory, we have studied the mechanical, electronic, and magnetic properties of Heusler alloys, namely, Ni$_{2}BC$ and Co$_{2}BC$ ($B$ = Sc, Ti, V, Cr and Mn as well as Y, Zr,…

材料科学 · 物理学 2016-05-18 Tufan Roy , Dhanshree Pandey , Aparna Chakrabarti

The non-stoichiometric Heusler alloy Ni$_{50}$Mn$_{36}$In$_{14}$ undergoes a martensitic phase transformation in the vicinity of 345 K, with the high temperature austenite phase exhibiting paramagnetic rather than ferromagnetic behavior, as…

材料科学 · 物理学 2015-06-30 Jing-Han Chen , Nickolaus M. Bruno , Ibrahim Karaman , Yujin Huang , Jianguo Li , Joseph H. Ross

Ni-Mn-In magnetic shape-memory Heusler alloys exhibit generally a large thermal hysteresis at their first-order martensitic phase transition which hinder a technological application in magnetic refrigeration. By optimizing the Cu content in…

材料科学 · 物理学 2020-04-16 P. Devi , C. Salazar Mejia , L. Caron , Sanjay Singh , M. Nicklas , C. Felser

The structural, magnetic, transport, thermal and magnetothermal properties of quaternary Heusler alloys Ni50Mn38-xFexSb12 have been studied. Powder x-ray diffraction and temperature dependence of magnetization studies reveal that with…

强关联电子 · 物理学 2015-05-27 Roshnee Sahoo , Ajaya K. Nayak , K. G. Suresh , A. K. Nigam

The effect of Co on the structural, magnetic and magnetocaloric effect (MCE) of Ni50-xCoxMn38Sb12 (x=0,2,3,4,5) Heusler alloys was studied. Using x-ray diffraction, we show the evolution of the martensitic phase from the austenite phase.…

强关联电子 · 物理学 2010-06-02 Ajaya K Nayak , K G Suresh , A K Nigam

The electrical and thermo-electrical transport effects of the TaAs$_2$ semimetal were measured in a magnetic field applied along [-2 0 1] direction. The resulting field dependences of the resistivity as well as the Hall, Seebeck and Nernst…

We have studied the effect of magnetic field on a non-stoichiometric Heusler alloy Ni$_{50}$Mn$_{35}$In$_{15}$ that undergoes a martensitic as well as a magnetic transition near room temperature. Temperature dependent magnetization…

材料科学 · 物理学 2009-11-13 P. A. Bhobe , K. R. Priolkar , A. K. Nigam

Ni-Mn-based Heusler alloys, in particular all-d-metal Ni(-Co)-Mn-Ti, are highly promising materials for energy-efficient solid-state refrigeration as large multicaloric effects can be achieved across their magnetostructural martensitic…

In the present work, two successive magneto-structural transformations (MSTs) consisting of martensitic and intermartensitic transitions have been reported in polycrystalline Ni55.8Mn18.1Ga26.1 Heusler alloy. Benefiting from the additional…

材料科学 · 物理学 2015-09-25 Z. Li , K. Xu , Y. L. Zhang , C. Tao , D. Zheng , C. Jing

The hydrostatic pressure is expected to be an effective knob to tune the magnetostructural phase transitions of hexagonal MMX alloy. In this study, magnetization measurements under hydrostatic pressure were performed on a MMX martensitic…

材料科学 · 物理学 2021-06-08 Qingqi Zeng , Jianlei Shen , Enke Liu , Xuekui Xi , Wenhong Wang , Guangheng Wu , Xixiang Zhang

We report muon spin relaxation and inelastic neutron measurements on the Heusler system YbPd$_2$Sn. Localised anisotropic and quasi-elastic Yb magnetic fluctuations are observed below $T = 150$K. Both $\mu$SR and neutron data indicate a…

强关联电子 · 物理学 2009-11-07 A. Amato , B. Roessli , P. Fischer , N. Bernhoeft , A. Stunault , C. Baines , A. Dönni , H. Sugawara

Besides permitting an accurate determination of the ferromagnetic-to-paramagnetic phase transition temperature and the characteristic temperatures for the beginning and end of the growth of martensite (austenite) phase at the expense of…

材料科学 · 物理学 2009-11-13 P. K. Mukhopadhyay , S. N. Kaul
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