Abstract
Investigations of the geometric and electronic properties of ternary Ce-based heavy fermion systems CeT2X2 (T : Ni,Pd,Rh; X : Ge,Si) were carried out by means of electron spectroscopic methods. The main problem for these surface-sensitive techniques is the preparation of well-ordered and atomically clean surfaces. The ternary substance CeNi2Ge2 was grown on a W(110) substrate by MBE with subsequent annealing. A nearly layer-by-layer growth mode was detected using MEED. The annealed layers are ordered, but show small Ni2Ge crystalline islands. The composition was characterised by means of AES in dependence of the substrate as well as the annealing temperature. Electronic properties are investigated by angle resolved photoelectron spectroscopy.
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Received: 24 June 1996 / Revised: 23 December 1996 / Accepted: 31 December 1996
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Schmied, B., Wilhelm, M., Kübler, U. et al. Clean and ordered surfaces of CeNi2Ge2 layers on W(110). Fresenius J Anal Chem 358, 141–143 (1997). https://doi.org/10.1007/s002160050365
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DOI: https://doi.org/10.1007/s002160050365