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Dresden 2011 – scientific programme

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O: Fachverband Oberflächenphysik

O 69: Electronic structure I

O 69.3: Talk

Thursday, March 17, 2011, 11:45–12:00, WIL C107

Surface electronic structure of clean and oxidized Fe and O/Fe films on Pd(001) — •Christian Eibl, Anke B. Schmidt, and Markus Donath — Westfälische Wilhelms-Universität Münster

Spin-polarization detectors based on exchange interaction have attracted great attention due to their rather high figure of merit and Sherman function compared with spin-orbit-interaction based detectors. Especially oxidized iron films are already in use [1,2].

Here we report on spin-resolved inverse photoemission and target current spectroscopy measurements on Fe(001) and differently prepared O/Fe(001) films. A Pd(001) crystal is used as substrate for film growth. The aim is to understand in detail the influence of oxygen on the Fe(001) surface electronic structure and thereby to improve the spin-detector efficiency in view of Sherman function and stability.

[1] A. Winkelmann et al., Rev. Sci. Instrum. 79, 083303 (2008)

[2] T. Okuda et al., Rev. Sci. Instrum. 79, 123117 (2008)

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