Figure 1 | Scientific Reports

Figure 1

From: Easy axis anisotropy creating high contrast magnetic zones on magnetic tunnel junctions based molecular spintronics devices (MTJMSD)

Figure 1

3D illustration of cross-junction shaped MTJ with exposed side edges (a) before and (b) after connecting paramagnetic molecules between ferromagnets. (c) AFM topography image of microscopic MTJMSD (d) showing the formation of strip on one magnetic electrode in MFM study. Dashed line are guides to eye for indicating impacted top NiFe region. Black color represents the higher end of the MTJMSD induced magnetic field, yielding a force on the MFM tip. On the other hand, the white color represents the lower bound of the magnetic force experienced by the MFM tip. MTJMSD showing (e) spin-photovoltaic effect in I–V study, and (f) temperature dependent open circuit voltage. (g) 3D atomic model of 5 × 5 molecular device analogous to conceptual MTJMSD illustration shown in panel (b). (h) Description of coupling energy around 4 × 4 molecular junction of 3D model shown in (g). (g) Is only for illustration purpose and include fewer molecules and interfacial FM atoms to present uncluttered view of exchange interactions.

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