Nanoscale periodicity in stripe-forming systems at high temperature: Au/W(110)

作者：de la Figuera J^*; Leonard F; Bartelt N C; Stumpf R; McCarty K F

来源：Physical Review Letters, 2008, 100(18): 186102.

DOI：10.1103/PhysRevLett.100.186102

We observe using low-energy electron microscopy the self-assembly of monolayer-thick stripes of Au on W(110) near the transition temperature between stripes and the nonpatterned (homogeneous) phase. We demonstrate that the amplitude of this Au-stripe phase decreases with increasing temperature and vanishes at the order-disorder transition (ODT). The wavelength varies much more slowly with temperature and coverage than theories of stress-domain patterns with sharp boundaries would predict, and maintains a finite value of about 100 nm at the ODT. We argue that such nanometer-scale stripes should often appear near the ODT.

• 出版日期2008-5-9