5 years ago

Growth of Vanadium and Vanadium Oxide on a Rh(110) Surface

Growth of Vanadium and Vanadium Oxide on a Rh(110) Surface
Alessandro Sala, Tevfik O. Menteş, Ronald Imbihl, Andrea Locatelli, Bernhard von Boehn
We have studied the epitaxial growth of thin layers of vanadium and vanadium oxide on a Rh(110) surface with low-energy electron diffraction (LEED), low-energy electron microscopy (LEEM), Auger electron spectroscopy (AES), and X-ray photoelectron spectroscopy (XPS). Up to six monolayers of V/VOx were deposited with temperatures varying between 370 and 770 K. For V deposition, (1 × n) and (n × 1) overlayers with n = 2 and 4 are observed. For the deposition of 3 MLE of VOx, a (12 × 1) structure is obtained as a stable structure. XPS of V 2p3/2 reveals the simultaneous presence of an oxidic and a metallic or strongly reduced (V2+) V component.

Publisher URL: http://dx.doi.org/10.1021/acs.jpcc.7b04809

DOI: 10.1021/acs.jpcc.7b04809

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