TY - JOUR
T1 - X-ray diffraction and magnetic properties of β-Mn1-xOsx alloys
AU - Yamauchi, R.
AU - Miyakawa, M.
AU - Sasao, K.
AU - Fukamichi, K.
N1 - Funding Information:
The authors wish to express their thanks to Mr. H. Tanaka for experimental support in the present study. One of the authors (R.Y) was supported by a Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists.
PY - 2000/10/26
Y1 - 2000/10/26
N2 - The X-ray powder diffraction patterns of Mn1-xOsx (x≥0.36) alloys quenched from 1223 K show the β-Mn structure in which Os atoms preferentially occupy site 1, whereas the patterns of the specimens quenched from 873 K exhibit the α-Mn structure below x = 0.14. Using the resultant data, we have determined the phase diagram of the Mn-Os alloy system for the first time. The Neel temperature of β-Mn1-xOsx (x≥0.36) alloys determined from the magnetic susceptibility increases with increasing Os concentration. The electronic specific heat coefficient, γ, of samples with relatively low Os concentration is considerably large due to spin fluctuations.
AB - The X-ray powder diffraction patterns of Mn1-xOsx (x≥0.36) alloys quenched from 1223 K show the β-Mn structure in which Os atoms preferentially occupy site 1, whereas the patterns of the specimens quenched from 873 K exhibit the α-Mn structure below x = 0.14. Using the resultant data, we have determined the phase diagram of the Mn-Os alloy system for the first time. The Neel temperature of β-Mn1-xOsx (x≥0.36) alloys determined from the magnetic susceptibility increases with increasing Os concentration. The electronic specific heat coefficient, γ, of samples with relatively low Os concentration is considerably large due to spin fluctuations.
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U2 - 10.1016/S0925-8388(00)01090-2
DO - 10.1016/S0925-8388(00)01090-2
M3 - Article
AN - SCOPUS:0034299019
SN - 0925-8388
VL - 311
SP - 124
EP - 129
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 2
ER -