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- W2087504724 abstract "We describe the realization of a high moment state in fcc Fe nanoparticles through a controlled change in their atomic structure. Embedding Fe nanoparticles in a Cu(1-x)Au(x) matrix causes their atomic structure to switch from bcc to fcc. Extended x-ray absorption fine structure (EXAFS) measurements show that the structure in both the matrix and the Fe nanoparticles expands as the amount of Au in the matrix is increased, with the data indicating a tetragonal stretch in the Fe nanoparticles. The samples were prepared directly from the gas phase by co-deposition, using a gas aggregation source and MBE-type sources respectively for the nanoparticle and matrix materials. The structure change in the Fe nanoparticles is accompanied by a sharp increase in atomic magnetic moment, ultimately to values of ~2.5 ± 0.3 μ(B)/atom ." @default.
- W2087504724 created "2016-06-24" @default.
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- W2087504724 date "2012-04-03" @default.
- W2087504724 modified "2023-09-25" @default.
- W2087504724 title "Realizing high magnetic moments in fcc Fe nanoparticles through atomic structure stretch" @default.
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- W2087504724 doi "https://doi.org/10.1088/0953-8984/24/17/176001" @default.
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