Figure 1
From: Evidence of Magnetic Inversion in Single Ni Nanoparticles

Device description: (a) Schematic of our tunneling junction containing nanometer scale Ni particles. (b) Scanning electron microscope image of a typical device. The bar indicates 200 nm. (c) Transmission electron microscope image of a Ni particle on the Al2O3 surface. (d) Classical anisotropy energy landscape for the model Hamiltonian used in the text.