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JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
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The precise modulation of magnetic coupling in spinel ferrites is essential for magnetoelectronic applications. This study investigates Li0.5Cr0.1Al0.1Fe2.3-xLaxO4 (x=0-0.05) nanocrystals synthesized via a sol-gel method. Rietveld refinement and Williamson-Hall analysis reveal that large-radius La3+ ions occupy octahedral (B) sites, inducing lattice expansion and stabilizing gr…
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The composition-dependent magnetic properties of B2-ordered \zfr~alloys with substitutional disorder on the Fe sublattice are investigated using first-principles calculations within the coherent potential approximation. By systematically substituting Mn and Co on the Fe sublattice, we establish $d$-band filling as the primary control parameter governing magnetic stability in th…
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