ISLAND ORDERING ON CLEAN PD(110)

Note

关键词: 110 SURFACES;    CRYSTAL-SURFACES;    RECONSTRUCTION;    DIFFRACTION;    STRESS;   

DOI  :  10.1103/PhysRevB.47.13055

来源: SCIE

【 摘 要 】

High resolution low-energy electron diffraction measurements are reported that demonstrate the existence of semiordered islands on the clean Pd(110) surface. The islands are stable up to 1000-degrees-C and are approximately 90 atoms long in the [001] direction. A simple model is presented that makes use of step-step interactions to generate the periodic island structure. This model predicts that ordered islands form below the roughening temperature if the step creation energy is small compared to the step-step interaction. A justification for this condition is given for the Pd(110) surface.

【 授权许可】

Free