Ferromagnetic order and critical behavior at surfaces of ultrathin epitaxial films
β Scribed by C. Rau
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 951 KB
- Volume
- 49
- Category
- Article
- ISSN
- 1432-0630
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π SIMILAR VOLUMES
Resistivity pxx and Hall resistivity pxy were measured as functions of the magnetic field, temperature, and the metal volume fraction x, on a series of percolating Ni-Si02 granular films. At 5 K, the data for the metallic samples were fitted to power law dependencies of the forms, pxx ~ [(x -xc)/xc]
Using the effective field theory with a probability distribution technique that accounts for the self-spin correlations, we have studied the influence of surface defects on the critical properties of the magnetic spin Ising film. We discuss an L layer film of simple cubic symmetry with nearest-neigh