TY - JOUR
T1 - Heat treatment effect on the magnetic properties and martensitic transformations of MnCoGe
AU - Noguchi, Kohei
AU - Kobayashi, Ryota
AU - Mitsui, Yoshifuru
AU - Umetsu, Rie Y.
AU - Gouchi, Jun
AU - Uwatoko, Yoshiya
AU - Koyama, Keiichi
N1 - Funding Information:
This work is partly supported KAKENHI ( 17K06840 ). Magnetization measurements were performed at the Institute for Solid State Physics, The University of Tokyo and Institute for Materials Research, Tohoku University.
Funding Information:
This work is partly supported KAKENHI (17K06840). Magnetization measurements were performed at the Institute for Solid State Physics, The University of Tokyo and Institute for Materials Research, Tohoku University.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - X-ray powder diffraction, differential scanning calorimetry, and magnetization measurements were performed to investigate the effects of heat treatment on the magnetic and structural properties of as-cast and aging treated MnCoGe. The martensitic transformation temperature of the as-cast sample was 526 K for its first heating cycle, which decreased with repeating thermal cycles of 300–1273 K. MnCoGe prepared by aging treatment of 873 K for 7 days showed a first-order magnetic transition, which was accompanied by a martensitic transformation at 307 K. However, the transformation was not detected when the aging temperature was increased up to 973 K. The martensitic transformation temperature and volume of the parent phase was found to have a positive correlation.
AB - X-ray powder diffraction, differential scanning calorimetry, and magnetization measurements were performed to investigate the effects of heat treatment on the magnetic and structural properties of as-cast and aging treated MnCoGe. The martensitic transformation temperature of the as-cast sample was 526 K for its first heating cycle, which decreased with repeating thermal cycles of 300–1273 K. MnCoGe prepared by aging treatment of 873 K for 7 days showed a first-order magnetic transition, which was accompanied by a martensitic transformation at 307 K. However, the transformation was not detected when the aging temperature was increased up to 973 K. The martensitic transformation temperature and volume of the parent phase was found to have a positive correlation.
KW - Heat treatment
KW - Magnetostructural transition
KW - Martensitic transformation
KW - MnCoGe
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U2 - 10.1016/j.jmmm.2019.166199
DO - 10.1016/j.jmmm.2019.166199
M3 - Article
AN - SCOPUS:85076104212
VL - 499
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
M1 - 166199
ER -