Periodic step arrays on the aperiodici-Al-Pd-Mn quasicrystal surface at high temperature | Zendy

Yu Sato | Zendy; Barış Ünal | Zendy; T. A. Lograsso | Zendy; P. A. Thiel | Zendy; A. K. Schmid | Zendy; Thomas Duden | Zendy; N. C. Bartelt | Zendy; Kevin F. McCarty | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Periodic step arrays on the aperiodici-Al-Pd-Mn quasicrystal surface at high temperature

Author(s) -

Yu Sato,

Barış Ünal,

T. A. Lograsso,

P. A. Thiel,

A. K. Schmid,

Thomas Duden,

N. C. Bartelt,

Kevin F. McCarty

Publication year - 2010

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.81.161406

Subject(s) - quasicrystal , aperiodic graph , icosahedral symmetry , surface (topology) , stacking , materials science , etching (microfabrication) , crystallography , scanning tunneling microscope , condensed matter physics , physics , geometry , layer (electronics) , combinatorics , nanotechnology , mathematics , chemistry , nuclear magnetic resonance

We have observed the configuration and motion of surface steps on the aperiodic icosahedral ($i$-) Al-Pd-Mn quasicrystal using low-energy electron microscopy and scanning tunneling microscopy. As the quasicrystal is cooled from high temperature, bulk vacancies migrate to the surface causing the surface to be etched. Surprisingly, this etching occurs by two types of steps with different heights moving in different directions with different velocities. The steady-state surface morphology is a uniformly spaced rhomboidal step network. This network requires that the layer stacking near the surface deviates from the bulk quasicrystal stacking.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research