Diamondoid coating enables disruptive approach for chemical and magnetic imaging with 10 nm spatial resolution

作者：Ishiwata Hitoshi^*; Acremann Yves; Scholl Andreas; Rotenberg Eli; Hellwig Olav; Dobisz Elizabeth; Doran Andrew; Tkachenko Boryslav A; Fokin Andrey A; Schreiner Peter R; Dahl Jeremy E P; Carlson Robert M K; Melosh Nick; Shen Zhi Xun; Ohldag Hendrik

来源：Applied Physics Letters, 2012, 101(16): 163101.

DOI：10.1063/1.4756893

Diamondoids are unique molecular nano-materials with diamond structure and fascinating properties such as negative electron affinity and short electron mean free paths. A thin layer of diamondoids deposited on a cathode is able to act as an electron monochromator, reducing the energy spread of photo-emitted electrons from a surface. This property can be applied effectively to improve the spatial resolution in x-ray photoemission electron microscopy (X-PEEM), which is limited by chromatic aberration of the electron optics. In this paper, we present X-PEEM measurements reaching the technological relevant spatial resolution of 10 nm without the need of expensive and complex corrective optics. Our results provide a simple approach to image surface chemical and magnetic information at nanometer scales by employing diamondoids.

• 出版日期2012-10-15