Magnetocaloric materials: From micro-to nanoscale
Twenty one years ago, the discovery of the giant magnetocaloric effect (GMCE) at room
temperature completely revolutionized the magnetocaloric materials field demonstrating the …
temperature completely revolutionized the magnetocaloric materials field demonstrating the …
Crystallographic characterization on polycrystalline Ni-Mn-Ga alloys with strong preferred orientation
Heusler type Ni-Mn-Ga ferromagnetic shape memory alloys can demonstrate excellent
magnetic shape memory effect in single crystals. However, such effect in polycrystalline …
magnetic shape memory effect in single crystals. However, such effect in polycrystalline …
Nucleation and growth of hierarchical martensite in epitaxial shape memory films
R Niemann, A Backen, S Kauffmann-Weiss, C Behler… - Acta Materialia, 2017 - Elsevier
Shape memory alloys often show a complex hierarchical morphology in the martensitic
state. To understand the formation of this twin-within-twins microstructure, we examine …
state. To understand the formation of this twin-within-twins microstructure, we examine …
Effects of nanoindents on the martensitic transformation of Ni-Mn-Ga shape-memory Heusler films: A study by high-resolution imaging as a function of temperature
Nanoindentation was used to analyze the effect of localized plastic deformation on the
martensitic transformation of epitaxial Ni-Mn-Ga films on MgO (001) substrate. Atomic and …
martensitic transformation of epitaxial Ni-Mn-Ga films on MgO (001) substrate. Atomic and …
Preserving metamagnetism in self-assembled FeRh nanomagnets
Preparing and exploiting phase-change materials in the nanoscale form is an ongoing
challenge for advanced material research. A common lasting obstacle is preserving the …
challenge for advanced material research. A common lasting obstacle is preserving the …
Temperature dependence of elastic properties in austenite and martensite of Ni-Mn-Ga epitaxial films
Using surface acoustic waves (SAW) the elastic properties of 500 nm thick epitaxial off-
stoichiometric Ni-Mn-Ga films prepared by sputtering on MgO substrate were determined in …
stoichiometric Ni-Mn-Ga films prepared by sputtering on MgO substrate were determined in …
Influence of film thickness and composition on the martensitic transformation in epitaxial Ni–Mn–Sn thin films
Two series of epitaxial Ni–Mn–Sn thin films of different thickness are investigated for the
thickness and composition dependence of the martensitic transformation. Thin films ranging …
thickness and composition dependence of the martensitic transformation. Thin films ranging …
Ni-Mn-Ga shape memory nanoactuation
M Kohl, M Schmitt, A Backen, L Schultz… - Applied Physics …, 2014 - pubs.aip.org
To probe finite size effects in ferromagnetic shape memory nanoactuators, double-beam
structures with minimum dimensions down to 100 nm are designed, fabricated, and …
structures with minimum dimensions down to 100 nm are designed, fabricated, and …
Martensite-enabled magnetic flexibility: The effects of post-growth treatments in magnetic-shape-memory Heusler thin films
Magnetic-shape-memory Heusler thin films have a great potential for new-concept
integrated devices, such as microactuators, energy harvesters and solid-state …
integrated devices, such as microactuators, energy harvesters and solid-state …
[HTML][HTML] Spatially confined magnetic shape-memory Heuslers: Implications for nanoscale devices
Magnetic shape-memory (MSM) Heuslers are among the most promising materials for
thermo-magneto-mechanical applications. However, the knowledge about the martensitic …
thermo-magneto-mechanical applications. However, the knowledge about the martensitic …