منابع مشابه
Magnetic transitions in Pr2Ni04 single crystal
The magnetic properties of a stoichiometric PrzNi04 single crystal have been examined by means of the temperature dependence of the complex ac susceptibility and the isothermal magnetization in fields up to 200 kOe at T = 4.2 K. Three separate phases have been identified’ and their anisotropic character has been analyzed. A collinear antiferromagnetic phase appears first between TN = 325 K and ...
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The magnetic properties and structural phase transformations of Heusler alloys Ni2+ Mn1 Ga and Ni2 Mn1+ 2Ga1+ 2 were investigated. It was found that the martensitic transformation temperature increases and the Curie temperature decreases with decreasing Mn concentration in the Ni2+ Mn1 Ga system, but the magnetic properties decrease faster than those do in the Ni2 Mn1+ 2Ga1+ 2 system. It sugges...
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In this article, we develop a continuum mechanical model to simulate deformation and phase transformation processes in shape memory alloys. The model is based on a detailed description of the stored energy. Furthermore, the energy dissipation due to phase transformations is taken into account via the maximum-dissipation principle. The results from the 3D numerical simulations of stress induced ...
متن کاملInter-martensite strain evolution in NiMnGa single crystals
Stress-induced martensitic transformations are clarified in classes of NiMnGa alloys which undergo the stress-free, thermal-induced inter-martensite transformation austenite (A) pre-martensite (PM) martensite. This study implements a comprehensive experimental approach, including analysis of the strain–temperature and stress–strain response, which discloses stress-induced inter-martensite trans...
متن کاملSpin-transfer torque on a single magnetic adatom.
We theoretically show how the spin orientation of a single magnetic adatom can be controlled by spin polarized electrons in a scanning tunneling microscope configuration. The underlying physical mechanism is spin assisted inelastic tunneling. By changing the direction of the applied current, the orientation of the magnetic adatom can be completely reversed on a time scale that ranges from a few...
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ژورنال
عنوان ژورنال: Shape Memory and Superelasticity
سال: 2017
ISSN: 2199-384X,2199-3858
DOI: 10.1007/s40830-017-0106-3