American Physical Society, Physical Review Letters, 5(115), 2015
DOI: 10.1103/physrevlett.115.057201
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Under the terms of the Creative Commons Attribution License 3.0 (CC-BY). ; Thermal activation tends to destroy the magnetic stability of small magnetic nanoparticles, with crucial implications for ultrahigh density recording among other applications. Here we demonstrate that low-blocking-temperature ferromagnetic (FM) Co nanoparticles (TB