Abstract
The magneto-optical and optical properties of ultrathin Fe films sandwiched between Au layers were studied. A pronounced Kerr rotation peak is observed respectively in the photon energy range of 3.6-3.8 eV when the Fe layer is thinner than 1.5 nm, and in the range of 3.4-3.5 eV for thicker Fe layers. In simple calculations, the Kerr rotation peak is demonstrated to originate from the variation of the off-diagonal element in dielectric tensor of the Fe layers. The relative peak height Δθk, the normalized Kerr rotation θkn, and the effective optical constants at the photon energy of 3.5 eV are found to oscillate as a function of dFe.
| Original language | English |
|---|---|
| Pages (from-to) | 8011-8014 |
| Number of pages | 4 |
| Journal | Journal of Applied Physics |
| Volume | 79 |
| Issue number | 10 |
| DOIs | |
| State | Published - 15 May 1996 |
| Externally published | Yes |
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