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- W2053921284 abstract "The crystal structure, site occupancy and intrinsic magnetic properties of R2Fe17−xAlxC (R = Y, Pr, Tb and Ho; x = 0–4) compounds have been studied. Dilute Al substitution for Fe increases the Tc and decreases the Ms for all four compounds. For x = 2, Tc of 501, 476, 529 and 501 K and Ms (measured at 5 K) of 141, 115.6, 40 and 38 emu/g were obtained for R = Y, Pr, Tb, and Ho, respectively. From neutron diffraction, it was found unexpectedly that C atoms prefer both the 9e and 18g sites for R = Pr and Tb, which is different from the case of 9e site preference for R = Y and Ho. As the rare earth element changes from light rare earth (R = Y and Pr) to heavy rare earth (R = Tb and Ho), the Al site occupation on 6c and 18f increases while that on the 18h site decreases. However, the 18h site still exhibits the highest Al occupancy for all samples. The Tc values obtained on Tb2Fe17−xAlxC and Ho2Fe17−xAlxC are higher than those of Y2Fe17−xAlxC and Pr2Fe17−xAlxC suggesting that Tc may be more strongly influenced by the RFe exchange interaction rather than the FeFe exchange interaction." @default.
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- W2053921284 date "1997-08-01" @default.
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- W2053921284 title "Magnetic and neutron diffraction studies of R2Fe17−xAlxC (R = Y, Pr, Tb and Ho) intermetallic compounds with Th2Zn17-type crystal structure" @default.
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- W2053921284 doi "https://doi.org/10.1016/s0304-8853(97)00131-5" @default.
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