Title: Self-assembled Ag(111) nanostructures induced by Fermi surface nesting

Journal Article · · Physical Review B
ORCiD logo [1];  [2];  [2];  [2];  [2]
  1. University of Northern Iowa, Cedar Falls, IA (United States); OSTI
  2. University of Northern Iowa, Cedar Falls, IA (United States)
+ Show Author Affiliations

Scanning tunneling microscopy measurements on Ag(111)/MoS2 reveal atomically flat preferred, or “magic,” heights occurring at 6, 10, and 14 atomic layers. We note these results are consistent with Ag growth on a variety of semiconducting substrates and correlate with electronic energy savings in electronic structure calculations of freestanding Ag(111) films. Thus, under certain conditions, Ag will spontaneously form quantized structures independent of the substrate. To explain this, we have found Fermi surface nesting vectors in the bulk Ag band structure which account for these results and the fact Ag that is gapped along the surface normal. This model extends to a range of metallic systems which exhibit electronic confinement, epitaxial growth, and minimal strain. As with Au/MoS2, the Ag/MoS2 system exhibits this behavior at unusually high temperatures so that these principles might be used for control over device features at the nanometer scale under standard fabrication conditions.

Research Organization:
University of Northern Iowa, Cedar Falls, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0020334
OSTI ID:
1803958
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 23 Vol. 100; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (36)

Transition from 2D to 3D growth during Ag/Si(111)-(7×7) heteroepitaxy journal June 2001
Metastable structures and critical thicknesses: Ag on Si(111)-7×7 journal October 1998
Acetone sensors based on TiO2 nanocrystals modified with tungsten oxide species journal April 2016
Room-temperature epitaxy of metal thin films on tungsten diselenide journal January 2019
Shape-controlled synthesis of platinum nanocrystals for catalytic and electrocatalytic applications journal February 2009
Antibacterial activity of silver nanoparticles: A surface science insight journal June 2015
Thickness- and deposition temperature-dependent morphological change in electronic growth of ultra-thin Ag films on Si(111) substrates journal January 2008
Room Temperature van der Waals Epitaxy of Metal Thin Films on Molybdenum Disulfide journal April 2018
Shape-Controlled Synthesis of Pd Nanocrystals and Their Catalytic Applications journal November 2012
Metal Contacts on Physical Vapor Deposited Monolayer MoS 2 journal November 2013
Colloidal quantum dot solids for solution-processed solar cells journal February 2016
Three-dimensional quantum size effects on the growth of Au islands on MoS 2 journal November 2018
The SIESTA method for ab initio order- N materials simulation journal March 2002
Inhomogeneous band bending on MoS 2 (0001) arising from surface steps and dislocations journal July 2012
Generalized Ruderman-Kittel-Kasuya-Yosida theory of oscillatory exchange coupling in magnetic multilayers journal September 1992
Exchange coupling in magnetic heterostructures journal September 1993
Density-functional method for nonequilibrium electron transport journal March 2002
Observation of preferred heights in Pb nanoislands: A quantum size effect journal September 2002
Quantum size effect driven thermal decomposition of Ag films on Fe(100) in the presence of pinhole-growth morphological defects journal January 2010
Lattice expansion in islands stabilized by electron confinement: Ag on Si ( 111 ) − 7 × 7 journal February 2010
Scanning probe microscopy study of height-selected Ag/Ge(111) nanomesas driven by quantum size effects journal June 2010
Critical Role of a Buried Interface in the Stranski-Krastanov Growth of Metallic Nanocrystals: Quantum Size Effects in Ag/Si(111)-( 7 × 7 ) journal January 2015
Theory of Magnetic Ordering in the Heavy Rare Earths: Ab Initio Electronic Origin of Pair- and Four-Spin Interactions journal May 2017
Generalized Gradient Approximation Made Simple journal October 1996
“Electronic Growth” of Metallic Overlayers on Semiconductor Substrates journal June 1998
Novel Growth of Ag Islands on Si(111): Plateaus with a Singular Height journal January 1999
Role of the Metal/Semiconductor Interface in Quantum Size Effects: Pb / Si(111) journal December 2000
Correlation between Quantized Electronic States and Oscillatory Thickness Relaxations of 2D Pb Islands on Si(111)-( 7 × 7 ) Surfaces journal May 2001
Hidden Fermi Surface Nesting and Charge Density Wave Instability in Low-Dimensional Metals journal April 1991
Formation of Atomically Flat Silver Films on GaAs with a "Silver Mean" Quasi Periodicity journal July 1996
Evidence for Quantum Size Effects Observed by Helium Atom Scattering during the Growth of Pb on Cu(111) journal October 1989
Enhancing thermoelectric properties of single-walled carbon nanotubes using halide compounds at room temperature and above. text January 2021
Correlation between Quantized Electronic States and Oscillatory Thickness Relaxations of 2D Pb Islands on Si(111)-(7×7) Surfaces text January 2001
Single Nanoparticle Plasmonic Sensors journal October 2015
Density functional method for nonequilibrium electron transport text January 2001
Electronic growth of Ag islands on MoS 2 journal July 2018

Similar Records

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
Materials Science
Physics