Phase Transitions in the Chemisorbed Layer W(110)p(2x1)-O as a Function of Coverage: I. Experimental.
WISCONSIN UNIV-MADISON MATERIALS SCIENCE CENTER
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The thermal disordering of oxygen chemisorbed on W110 has been investigated as a function of coverage below half monolayer coverage by measuring the angular distribution of intensity in the LEED superlattice reflections as a function of temperature. The transition temperature is a function of coverage, being much lower at low coverage. A partial phase diagram is constructed for this overlayer, and the low- and high-coverage limits are interpreted respectively in terms of an island-dissolution and an order-disorder transition. Author
- Physical Chemistry