A New Collinear-Type Energy-Filtered X-ray Photoemission Electron Microscope Equipped with a Multi-Pole Aberration-Corrected Air-Core Coil Wien Filter

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概要

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• We present the prototype of a new, collinear-type energy-filtered X-ray photoemission electron microscope (EXPEEM) using a multi-pole, aberration-corrected air-core coil Wien filter (WF) analyzer. We have designed the new WF with 12-pole electrodes and magnetic poles to reduce spherical aberrations and fringe effects. We assess the performance of the WF using an electron energy analyzer for PEEM. The sensitivity is enhanced 10--100 fold compared with a simple, two electrodes plus two magnetic poles type WF. Cu 2p3/2 and Au 4f7/2 photoelectron energy selected images are obtained in a laboratory-scale source within several minutes. The energy and spatial resolutions of our prototype EXPEEM are estimated to be 3 eV and 7 μm, respectively.

• 2012-04-25

著者

• ASAKURA Kiyotaka

  Department of Chemistry and State Key Laboratory of Physical Chemistry for Solid Surface, Xiamen Uni

• Miyamoto Takeshi

  Department Of Cell Differentiation Sakaguchi Laboratory Of Developmental Biology Keio University Sch

• Kato Makoto

  Jeol Ltd.

• Wada Takahiro

  Department Of Intelligent Mechanical Systems Faculty Of Engineering Kagawa University

• Suzuki Shushi

  Department of Crystalline Materials Science, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan

• Niimi Hironobu

  JEOL, Akishima, Tokyo 196-8558, Japan

• Kato Makoto

  JEOL, Akishima, Tokyo 196-8558, Japan

• Kudo Masato

  JEOL, Akishima, Tokyo 196-8558, Japan

• Miyamoto Takeshi

  Department of Quantum Science and Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 001-0021, Japan

• Wada Takahiro

  Department of Chemistry, Tokyo Metropolitan University

• Asakura Kiyotaka

  Department of Chemistry and Research Center for Spectrochemistry, Faculty of Science, The University of Tokyo

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