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Measurement of an Iso-Curie Temperature Line of a Co[BOND]Cr[BOND]Mo Solid Solution by Magnetic Force Microscopy Imaging on a Diffusion Multiple


  • The work of JCZ was supported by NSF grant NSF-DMR 0804833. Supporting Information is available from the Wiley Online Library or from the author.


The 24 °C iso-Curie temperature line of a Co[BOND]Cr[BOND]Mo fcc solid solution is obtained by performing magnetic force microscopy (MFM) imaging on solid solution compositions created in a diffusion multiple. The MFM imaging clearly reveals the boundary that separates the paramagnetic region without magnetic domains from the ferromagnetic region with domains. Compositional analysis along the boundary yields a constant Curie temperature (24 °C) composition line. Such a measurement is more efficient than one-alloy-at-a-time tests and can be used to screen new ferromagnetic materials.