Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets

E Liu, W Wang, L Feng, W Zhu, G Li, J Chen… - Nature …, 2012 - nature.com
The magnetostructural coupling between the structural and the magnetic transition has a
crucial role in magnetoresponsive effects in a martensitic-transition system. A combination of …

Phase diagram, ferromagnetic martensitic transformation and magnetoresponsive properties of Fe-doped MnCoGe alloys

GJ Li, EK Liu, HG Zhang, YJ Zhang, JL Chen… - Journal of magnetism …, 2013 - Elsevier
The crystal structure and magnetoresponsive properties of Fe-doped MnCoGe alloys have
been investigated using x-ray diffraction (XRD) and magnetic measurements. By alloying the …

Over 7% magnetic field-induced strain in a Ni-Mn-Ga five-layered martensite

E Pagounis, R Chulist, MJ Szczerba… - Applied Physics …, 2014 - pubs.aip.org
A Ni-Mn-Ga single crystal with a modulated five-layered martensite structure is reported,
demonstrating giant magnetic field induced strain (MFIS) of 7.1% at room temperature and of …

Highly thermal-stable ferromagnetism by a natural composite

T Ma, J Gou, S Hu, X Liu, C Wu, S Ren, H Zhao… - Nature …, 2017 - nature.com
All ferromagnetic materials show deterioration of magnetism-related properties such as
magnetization and magnetostriction with increasing temperature, as the result of gradual …

Various magnetic domain structures in a Ni–Mn–Ga martensite exhibiting magnetic shape memory effect

Y Ge, O Heczko, O Söderberg… - Journal of Applied Physics, 2004 - pubs.aip.org
Magnetic domain structures of the Ni–Mn–Ga martensite were observed by means of type I
and type II magnetic contrast in scanning electron microscope. The different configuration of …

Shape memory effect due to magnetic field-induced thermoelastic martensitic transformation in polycrystalline Ni–Mn–Fe–Ga alloy

AA Cherechukin, IE Dikshtein, DI Ermakov, AV Glebov… - Physics Letters A, 2001 - Elsevier
In Heusler-type alloy Ni2+ x− yMn1− xFeyGa, partial substitution of Mn for Ni causes the
temperatures of structural (martensitic) TM and magnetic TC (Curie point) phase transitions …

Adaptive modulations of martensites

S Kaufmann, UK Rößler, O Heczko, M Wuttig… - Physical Review Letters, 2010 - APS
Modulated phases occur in numerous functional materials like giant ferroelectrics and
magnetic shape-memory alloys. To understand the origin of these phases, we employ and …

Temperature dependence and temperature limits of magnetic shape memory effect

O Heczko, L Straka - Journal of Applied Physics, 2003 - pubs.aip.org
We study the temperature dependence and low and high temperature limits of the magnetic
shape memory effect (MSME) in five-layered tetragonal Ni–Mn–Ga martensite. Using a …

Magnetic shape memory effect and highly mobile twin boundaries

O Heczko - Materials Science and Technology, 2014 - journals.sagepub.com
The magnetic shape memory effect can be classified as an example of the multiferroic effect
combining ferro-elasticity and (ferro) magnetism. After short overview of all known effects the …

Stress-induced twin rearrangement resulting in change of magnetization in a Ni–Mn–Ga ferromagnetic martensite

P Müllner, VA Chernenko, G Kostorz - Scripta Materialia, 2003 - Elsevier
Magnetoplasticity is the large magnetic-field-induced deformation of ferromagnetic
martensite. This effect is caused by a twin rearrangement. A strain-induced change of …