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Title: Atomic Scale coexistence of Periodic and quasiperiodic order in a2-fold A1-Ni-Co decagonal quasicrystal surface

Abstract

Decagonal quasicrystals are made of pairs of atomic planes with pentagonal symmetry periodically stacked along a 10-fold axis. We have investigated the atomic structure of the 2-fold surface of a decagonal Al-Ni-Co quasicrystal using scanning tunneling microscopy (STM). The surface consists of terraces separated by steps of heights 1.9, 4.7, 7.8, and 12.6{angstrom} containing rows of atoms parallel to the 10-fold direction with an internal periodicity of 4{angstrom}. The rows are arranged aperiodically, with separations that follow a Fibonacci sequence and inflation symmetry. The results indicate that the surfaces are preferentially Al-terminated and in general agreement with bulk models.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE Director. Office of Science. Office of AdvancedScientific Computing Research. Office of Basic Energy Sciences. MaterialsSciences and Engineering Division, Ames Laboratory
OSTI Identifier:
900780
Report Number(s):
LBNL-59105
R&D Project: 517950; BnR: KC0203010; TRN: US200711%%554
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review B; Journal Volume: 72; Related Information: Journal Publication Date: 2005
Country of Publication:
United States
Language:
English
Subject:
36; ATOMS; PERIODICITY; SCANNING TUNNELING MICROSCOPY; SYMMETRY

Citation Formats

Park, Jeong Young, Ogletree, D. Frank, Salmeron, Miquel, Ribeiro,R.A., Canfield, P.C., Jenks, C.J., and Thiel, P.A. Atomic Scale coexistence of Periodic and quasiperiodic order in a2-fold A1-Ni-Co decagonal quasicrystal surface. United States: N. p., 2005. Web. doi:10.1103/PhysRevB.72.220201.
Park, Jeong Young, Ogletree, D. Frank, Salmeron, Miquel, Ribeiro,R.A., Canfield, P.C., Jenks, C.J., & Thiel, P.A. Atomic Scale coexistence of Periodic and quasiperiodic order in a2-fold A1-Ni-Co decagonal quasicrystal surface. United States. doi:10.1103/PhysRevB.72.220201.
Park, Jeong Young, Ogletree, D. Frank, Salmeron, Miquel, Ribeiro,R.A., Canfield, P.C., Jenks, C.J., and Thiel, P.A. Mon . "Atomic Scale coexistence of Periodic and quasiperiodic order in a2-fold A1-Ni-Co decagonal quasicrystal surface". United States. doi:10.1103/PhysRevB.72.220201. https://www.osti.gov/servlets/purl/900780.
@article{osti_900780,
title = {Atomic Scale coexistence of Periodic and quasiperiodic order in a2-fold A1-Ni-Co decagonal quasicrystal surface},
author = {Park, Jeong Young and Ogletree, D. Frank and Salmeron, Miquel and Ribeiro,R.A. and Canfield, P.C. and Jenks, C.J. and Thiel, P.A.},
abstractNote = {Decagonal quasicrystals are made of pairs of atomic planes with pentagonal symmetry periodically stacked along a 10-fold axis. We have investigated the atomic structure of the 2-fold surface of a decagonal Al-Ni-Co quasicrystal using scanning tunneling microscopy (STM). The surface consists of terraces separated by steps of heights 1.9, 4.7, 7.8, and 12.6{angstrom} containing rows of atoms parallel to the 10-fold direction with an internal periodicity of 4{angstrom}. The rows are arranged aperiodically, with separations that follow a Fibonacci sequence and inflation symmetry. The results indicate that the surfaces are preferentially Al-terminated and in general agreement with bulk models.},
doi = {10.1103/PhysRevB.72.220201},
journal = {Physical Review B},
number = ,
volume = 72,
place = {United States},
year = {Mon Nov 14 00:00:00 EST 2005},
month = {Mon Nov 14 00:00:00 EST 2005}
}