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SPIN-POLARIZED STM: The recent progress in spin-polarized scanning tunneling microscopy has enabled access of magnetization down to the atomic level 2. However, only few groups in the world have succeeded because of non-trivial experimental problems. Therefore, before entering the novel study of molecular magnets, one has to establish the foundation of SP-STM on more conventional systems. With this aim, I studied the thickness dependence of anisotropy for Co thin films on Cu 111 3 and explored the peculiar properties of an antiferromagnetic Ising lattice in a face-centered cubic symmetry for epitaxial Cr films on Au 100 4. Those studies have demonstrated the capabilities of our current apparatus to succeed in this difficult field. Exploration of the magnetic properties of thin films is important because they can also be used as a substrate to host and control the properties of a subsequently deposited molecular magnet. A literature survey shows strong evidence that adaptation of the spin polarized STM technique to molecular magnets is relatively straight-forward 1,2. |
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[1]Visualizing the Spin of Individual Cobalt-Phthalocyanine Molecules. [2]Spin-polarized scanning tunnelling microscopy [3]Imaging Spin-Reorientation Transitions in Consecutive Atomic Co Layers on Cu [4]Ultrathin FCC Chromium on Au 100 investigated with the Scanning Tunneling Microscope |
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