Journal ArticleDOI
Large magnetic‐field‐induced strains in Ni2MnGa single crystals
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TLDR
In this paper, the superelastic motion of twin boundaries in the martensitic phase of Ni2MnGa with magnetic fields of 8 kOe applied at 265 K was found to be associated with the staining.Abstract:
Strains of nearly 0.2% have been induced along [001] in unstressed crystals of Ni2MnGa with magnetic fields of 8 kOe applied at 265 K. These stains are associated with the superelastic motion of twin boundaries in the martensitic phase that is stable below about 274 K.read more
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Domain microstructure evolution in magnetic shape memory alloys: Phase-field model and simulation
TL;DR: In this article, a phase-field micromagnetic microelastic model is employed to simulate domain microstructure evolution in magnetic shape memory alloys, and coupled motions of martensite twin boundaries and magnetic domain walls depend not only on the external magnetic field but also on internal domain configurations.
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Effect of magnetic field on martensitic transformation temperature in Ni–Mn–Ga ferromagnetic shape memory alloys
TL;DR: In this paper, the magnetic field dependence of martensitic transformation temperature has been investigated using single crystals of Ni2MnGa, Ni2.14Mn0.92Ga0.84Ga1.02 and Ni2mn 0.94, which exhibit P (parent phase) −I (intermediate phase) -10M, P 14M −2M and P 2M transformations, respectively.
Journal ArticleDOI
Metamagnetic transitions and magnetocaloric effect in epitaxial Ni–Co–Mn–In films
TL;DR: In this paper, epitaxially grown metamagnetic Ni-Co-Mn-In films on MgO (001) are analyzed which exhibit a magnetically induced austenite transition.
Journal ArticleDOI
Phase diagram and composition optimization for magnetic shape memory effect in Ni–Co–Mn–Sn alloys
TL;DR: In this paper, the magnetic properties of Ni50−xCoxMn39Sn11 (0≤x≤10) alloys were investigated and the phase diagram of this alloy system was established.
Journal ArticleDOI
Phase-field model for ferromagnetic shape-memory alloys
J. X. Zhang,Long Qing Chen +1 more
TL;DR: In this paper, a computational model was developed to predict the ferroelastic and ferromagnetic domain structures in NiMnGa shape-memory alloys by combining the phase-field approach, micromagnetics and the microelasticity theory of Khachaturyan.
References
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Ferromagnetic materials
TL;DR: In this paper, the authors restrict their attention to the ferrites and a few other closely related materials, which are more closely related to anti-ferromagnetic substances than they are to ferromagnetics in which the magnetization results from the parallel alignment of all the magnetic moments present.