Abstract

The authors report on the properties of potassium on MoS2(0001) at 100 K as deduced from LEED, AES, EELS and TDS measurements. Potassium grows in a layer-by-layer mode on the surface of MoS2. The intercalation of K into MoS2, which occurs at RT is negligible at LT. At low coverages K is deposited in ionic form, whereas for theta K>0.5 there is clear evidence of metallization of the K overlayer on MoS2.

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