Physics – Condensed Matter – Materials Science
Scientific paper
2010-03-02
EPL (Europhysics Letters) 91,(2010)17003
Physics
Condensed Matter
Materials Science
Manuscript revised. 18 pages, 6 figures and 1 table. Submitted for publication.
Scientific paper
10.1209/0295-5075/91/17003
It is shown that a temperature window between the Curie temperatures of martensite and austenite phases around the room temperature can be obtained by a vacancy-tuning strategy in Mn-poor Mn1-xCoGe alloys (0 <= x <= 0.050). Based on this, a martensitic transformation from paramagnetic austenite to ferromagnetic martensite with a large magnetization difference can be realized in this window. This gives rise to a magnetic-field-induced martensitic transformation and a large magnetocaloric effect in the Mn1-xCoGe system. The decrease of the transformation temperature and of the thermal hysteresis of the transformation, as well as the stable Curie temperatures of martensite and austenite, are discussed on the basis of the Mn-poor Co-vacancy structure and the corresponding valence-electron concentration.
Chen Jing-Ling
Feng Longlong
Li Yi-Xue
Liu E. K.
Liu Han-Yu
No associations
LandOfFree
Vacancy-tuned paramagnetic/ferromagnetic martensitic transformation in Mn-poor Mn_{1-x}CoGe alloys does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Vacancy-tuned paramagnetic/ferromagnetic martensitic transformation in Mn-poor Mn_{1-x}CoGe alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacancy-tuned paramagnetic/ferromagnetic martensitic transformation in Mn-poor Mn_{1-x}CoGe alloys will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-663023