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- Memory effect of Mn5Ge3 nanomagnets embedded inside a Mn-diluted Ge matrix
Memory effect of Mn5Ge3 nanomagnets embedded inside a Mn-diluted Ge matrix
in: Applied Physics Letters (2009)
Crystalline Mn5Ge3 nanomagnets are formed inside a Mn-diluted Ge matrix using Mn ion implantation. A temperature-dependent memory effect and slow magnetic relaxation are observed below the superparamagnetic blocking temperature of Mn5Ge3. Our findings corroborate that the observed spin-glass-like features are caused by the size distribution of Mn5Ge3 nanomagnets, rather than by the interparticle interaction through the Mn-diluted Ge matrix.
DOI: 10.1063/1.3264076