Tunnel Magnetoresistance in Self-Assemblies of Exchange-Coupled Core/Shell Nanoparticles (original) (raw)
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Physical Review B, 2005
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Nanomaterials, 2016
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Nano Letters, 2011
In this complementary section, we first present en enlarged view of cross section TEM picture of sample II (Fig.S1). 50 nm Figure S1. Enlarged view of cross section TEM of sample II. In fig.S2, we show TMR measurements of sample I performed on two devices different from the one presented in the main text. In Fig.S2.a, the variation of the resistance for the high-field regime, at T = 1.7 K, 5.1 K and 113.2 K are shown. To investigate a possible oxidation of the NPs, which could occur during the time of transferring the samples from the glove box to the cryostat (~ few minutes), we have performed magnetoresistance measurements after a fieldcooled (FC) under 3 T. The results are shown in S2.b. No shift of the maxima in the R(H) curves is noticeable.