Structure factors and magnetic moment distribution in a 6-element magnetic shape memory alloy single crystal
Mangetic Shape Memory Alloys are active materials that actuate mechanically upon the application of an external magnetic field. An attractive group of MSMAs are those with a large magnetic field induced strain (MFIS), with deformations up to 12%. This MFIS is possible by the large magnetic anisotropy energy of the variants and the magnetostatic coupling between lattice and spin, allowing manipulating the crystal structure by a magnetic field. Additionally, magnetic coupling between atoms will depend on their positions within the lattice. In this proposal we aim at completing the study of a single crystal of a MSMA composed of six different elements (NiMnGaCoCuFe), which was already measured in D3 under the EASY proposal number EASY-391. In order to determine the full atomic site occupancies and magnetic moments distribution in each site, previous information related to the nuclear structure is necessary in combination with the data obtained from D3.
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PORRO AZPIAZU Jose Maria; CHERNENKO Volodymyr; FEUCHTWANGER Jorge; LAZPITA Patricia; MONDELLI Claudia; A. Perez-Checa; RODRIGUEZ VELAMAZAN Jose Alberto and STUNAULT Anne. (2020). Structure factors and magnetic moment distribution in a 6-element magnetic shape memory alloy single crystal. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-14-271
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