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Electronic Instabilities in Shape-Memory Alloys
J. C. Lashley, R. K. Schulze, B. Mihaila +10
Using a variety of thermodynamic measurements made in magnetic fields, we show evidence that the diffusionless transition (DT) in many shape-memory alloys is related to significant…
Temperature and magnetic field dependences of the elastic constants of Ni-Mn-Al magnetic Heusler alloys
Xavier Moya, Lluis Manosa, Antoni Planes +5
We report on measurements of the adiabatic second order elastic constants of the off-stoichiometric NiMnAl single crystalline Heusler alloy. The variation in t…
A simple Lattice Model for hysteresis loops with exchange bias
Eduard Vives, Xavier Illa, Antoni Planes
A simple lattice model that allows hysteresis loops with exchange bias to be reproduced is presented. The model is based on the metastable Random Field Ising model, driven by an ex…
Lattice dynamics and phonon softening in Ni-Mn-Al Heusler alloys
Xavier Moya, Lluís Mañosa, Antoni Planes +6
Inelastic and elastic neutron scattering have been used to study a single crystal of the NiMnAl Heusler alloy over a broad temperature range. The paper reports…