Niemann, Robert; Rößler, Ulrich K.; Gruner, Markus Ernst; Heczko, Oleg; Schultz, Ludwig; Fähler, Sebastian:

The Role of Adaptive Martensite in Magnetic Shape Memory Alloys

In: Advanced Engineering Materials, Jg. 14 (2012) ; Nr. 8, S. 562-581
ISSN: 1527-2648
Zeitschriftenaufsatz / Fach: Physik
Fakultät für Physik » Theoretische Physik
Abstract:
Magnetic shape memory materials require a high twin boundary mobility and low hysteresis for applications. Outstanding properties are found in samples with a modulated martensitic structure. Following the concept of adaptive martensite, this modulation forms to minimize elastic energy near the phase boundary by introducing low-energy twin boundaries between lamellae of the non-modulated martensite with widths of a few unit cells. We combine theory and experiment to understand modulated martensite.