Unformatted text preview: these impurities to the surrounding host atoms. EPR probes the interaction between the electronic wave function and specific nuclei. Results of EPR measurements are often expressed in terms of hyperfine parameters . (a) The isotropic hyperfine parameter (also referred to as the Fermi contact interaction ) is directly related to the probability of an electron being at the same location as the nucleus. Evaluate this probability density for an electron interacting with the nucleus (i.e., the proton) in the 1 s , 2 s , and 3 s orbitals of a hydrogen atom. (b) The anisotropic hyperfine parameter is directly related to the average value of 1/ r 3 . Evaluate <1/ r 3 > for an electron in the 2 p orbital of a hydrogen atom....
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- Spring '08
- Atom, Hydrogen atom, EPR, Hyperfine parameters Electron, isotropic hyperfine parameter