Interplay between surface and surface resonance states on height selective stability of fcc Dy(111) film at nanoscale.
Using first-principles calculations we show that face-centered cubic Dy(111) ultrathin films exhibit height selective stability. The origin of such height selection can be attributed to the interplay between the localized surface states and surface resonance states due to electron confinement effects. Such effect could be utilized to manipulate the film thickness at the atomic level to achieve desirable film properties or to control the growth of nanostructures on the thin film for various applications.
Center for Quantum Sciences and School of Physics, Northeast Normal University, Changchun, 130117, China.
Xiaojie
X
Liu
Ames Laboratory - U. S. Department of Energy, and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA. wangcz@ameslab.gov.
Cai-Zhuang
CZ
Wang
Ames Laboratory - U. S. Department of Energy, and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA. wangcz@ameslab.gov.
Myron
M
Hupalo
Ames Laboratory - U. S. Department of Energy, and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA. wangcz@ameslab.gov.
Kai-Ming
KM
Ho
Ames Laboratory - U. S. Department of Energy, Department of Chemistry and Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011, USA.
Patricia A
PA
Thiel
Ames Laboratory - U. S. Department of Energy, and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA. wangcz@ameslab.gov.
Michael C
MC
Tringides