The effect of GaAs(001) substrate roughness on the magnetic properties of epitaxial Fe films - Vysotskii, S. L.; Dzhumaliev, A. S.; Kazakov, G. T.; Filimonov, Yu. A.; Tsyplin, A. Yu. (Springer, 2000)
http://dx.doi.org/10.1134/1.1318964
Keywords: U