Temperature-induced martensite in magnetic shape memory Fe{sub 2}MnGa observed by photoemission electron microscopy
The magnetic domain structure in single crystals of a Heusler shape memory compound near the composition Fe{sub 2}MnGa was observed during phase transition by photoelectron emission microscopy at Beamline 11.0.1.1 of the Advanced Light Source. The behavior is comparable with recent observations of an adaptive martensite phase in prototype Ni{sub 2}MnGa, although the pinning in the recent work is an epitaxial interface and in this work the e ective pinning plane is a boundary between martensitic variants that transform in a self-accommodating way from the single crystal austenite phase present at high temperatures. Temperature dependent observations of the twinning structure give information as to the coupling behavior between the magnetism and the structural evolution.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- Advanced Light Source Division
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1082183
- Report Number(s):
- LBNL-5382E
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 3 Vol. 100; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Incommensurate modulated structure of the ferromagnetic shape-memory Ni{sub 2}MnGa martensite
In-situ high-energy x-ray diffuse-scattering study of the phase transition in a Ni{sub 2}MnGa ferromagnetic shape-memory crystal.
Electron microscopy studies of twin morphologies in B19{prime} martensite in the Ti-Ni shape memory alloy
Journal Article
·
Tue Nov 14 23:00:00 EST 2006
· Journal of Solid State Chemistry
·
OSTI ID:20900894
In-situ high-energy x-ray diffuse-scattering study of the phase transition in a Ni{sub 2}MnGa ferromagnetic shape-memory crystal.
Journal Article
·
Sun Nov 30 23:00:00 EST 2008
· Metall. Mater. Trans. A
·
OSTI ID:988670
Electron microscopy studies of twin morphologies in B19{prime} martensite in the Ti-Ni shape memory alloy
Journal Article
·
Tue Feb 28 23:00:00 EST 1995
· Acta Metallurgica et Materialia
·
OSTI ID:31739