Title: Theory of circular dichroism in photon STM experiments on magnetic samples
Abstract: Recent experiments on the circular dichroism using a photon emission scanning tunneling microscope (PSTM) on magnetic samples are analyzed by a theoretical approach that includes the influence of the sample-tip geometry and the anisotropic response of the ferromagnetic substrate. We obtain an expression for the degree of circular polarization in the emitted light that leads to a reasonable agreement with the experimental data. Combining our theoretical analysis with measurements of the circular dichroism using PSTM offers a convenient way to determine locally the optical constants of a magnetic sample.
Publication Year: 1995
Publication Date: 1995-11-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 9
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