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Title: Spatially resolved quantitative magnetic order measurement in spinel CuCr2S4 nanocrystals
Authors: Negi, D. S.
Loukya, B.
Ramasamy, K.
Gupta, A.
Datta, Ranjan
Keywords: Applied Physics
Transmission Electron-Microscope
Chalcogenide Spinels
Fine Particles
Issue Date: 2015
Publisher: American Institute of Physics
Citation: Applied Physics Letters
Negi, D. S.; Loukya, B.; Ramasamy, K.; Gupta, A.; Datta, R., Spatially resolved quantitative magnetic order measurement in spinel CuCr2S4 nanocrystals. Applied Physics Letters 2015, 106 (18), 5.
Abstract: We have utilized spatially resolved high resolution electron energy loss spectroscopy to quantify the relative percentage of ferromagnetic order in the core and the surface regions of CuCr2S4 nanoparticles with nanocube and nanocluster morphology. The organic capping layer is found to play a significant role in restoring magnetic order at the surface. The technique is based on recording the fine features of the Cr L-3 absorption edge and matching them with the theoretical spectra. The nanoscale probing technique we have developed is quite versatile and can be extended to understand magnetic ordering in a number of nanodimensional magnetic materials. (C) 2015 AIP Publishing LLC.
Description: Restricted access
ISSN: 0003-6951
Appears in Collections:Research Articles (Ranjan Datta)

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