The photosensitivity of GaAs tips is studied in a scanning tunneling microscope. Measurements of surface photovoltage and zero-bias photocurrent vs. incident light power are presented together with a simple theor. model. It is shown that these tips can be used for measurement of local sample magnetization through the magnetooptical Faraday effect.
|Title of host publication||Photons and Local Probes : Proceedings of the NATO Advanced Research Workshop on Photons and Local Probes, Reichenau, Germany, September 11 - 17, 1994|
|Place of Publication||Dordrecht|
|Publisher||Kluwer Academic Publishers|
|Publication status||Published - 1995|
|Name||NATO ASI Series, Series E: Applied Sciences|