TY - JOUR
T1 - High-pressure synthesis and crystal structure of a novel intermetallic compound Mn(Al,Ge)5
AU - Sasaki, Takuya
AU - Kato, Takashi
AU - Fukushima, Jun
AU - Hayashi, Yamato
AU - Takizawa, Hirotsugu
N1 - Funding Information:
This study was supported by JSPS KAKENHI [grant number 15K13795]. The authors would like to thank the Center for Low-Temperature Science, Tohoku University for the assistance with the SQUID measurements.
Funding Information:
This study was supported by JSPS KAKENHI [grant number 15K13795 ].
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/10/25
Y1 - 2019/10/25
N2 - A novel intermetallic compound of the Mn–Al–Ge system, Mn(Al,Ge)5, was synthesized under high pressure and high temperature (5 GPa and 600 °C). The crystal structure was tetragonal with a space group of I4/mcm (no. 140), which was isostructural with PdGa5 or FeAl3Si2. The crystallographic parameters were refined by Rietveld analysis from powder X-ray diffraction data, yielding a = 0.624026 (5) nm, c = 0.981858 (10) nm, and Z = 4. The structure could be considered a defect-Cr5B3 (D8l) structure. The hysteresis loop and magnetization–temperature curve revealed the synthesized Mn(Al,Ge)5 to be paramagnetic: the long Mn–Mn distance led to a structure without magnetic ordering.
AB - A novel intermetallic compound of the Mn–Al–Ge system, Mn(Al,Ge)5, was synthesized under high pressure and high temperature (5 GPa and 600 °C). The crystal structure was tetragonal with a space group of I4/mcm (no. 140), which was isostructural with PdGa5 or FeAl3Si2. The crystallographic parameters were refined by Rietveld analysis from powder X-ray diffraction data, yielding a = 0.624026 (5) nm, c = 0.981858 (10) nm, and Z = 4. The structure could be considered a defect-Cr5B3 (D8l) structure. The hysteresis loop and magnetization–temperature curve revealed the synthesized Mn(Al,Ge)5 to be paramagnetic: the long Mn–Mn distance led to a structure without magnetic ordering.
KW - Crystal structure
KW - Intermetallics
KW - Solid state reactions
KW - X-ray diffraction
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U2 - 10.1016/j.jallcom.2019.07.239
DO - 10.1016/j.jallcom.2019.07.239
M3 - Article
AN - SCOPUS:85069883743
SN - 0925-8388
VL - 806
SP - 58
EP - 62
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -