Interplay between quantum confinement and surface effects in thickness selective stability of thin Ag and Eu films

Liu, Xiaojie; Wang, Cai -Zhuang

doi:10.1088/1361-648X/aa6556

Title: Interplay between quantum confinement and surface effects in thickness selective stability of thin Ag and Eu films

Full Record
Other Related Research

Abstract

Using first-principles calculations, we show that both face-centered cubic (fcc) Ag (1 1 0) ultrathin films and body-centered cubic (bcc) Eu(1 1 0) ultrathin films exhibit thickness selective stability. Furthermore, the origin of such thickness selection is different. While the thickness selective stability in fcc Ag(1 1 0) films is mainly due to the well-known quantum well states ascribed to the quantum confinement effects in free-electron-like metal films, the thickness selection in bcc Eu(1 1 0) films is more complex and also strongly correlated with the occupation of the surface and surface resonance states.

Authors:

Liu, Xiaojie ^[1]; Wang, Cai -Zhuang ^[2]

Northeast Normal Univ., Changchun (People's Republic of China)
Ames Lab. and Iowa State Univ., Ames, IA (United States)

Publication Date:: 2017-04-03

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1377863

Report Number(s):: IS-J-9262
Journal ID: ISSN 0953-8984

Grant/Contract Number:: AC02-07CH11358

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Physics. Condensed Matter

Additional Journal Information:: Journal Volume: 29; Journal Issue: 18; Journal ID: ISSN 0953-8984

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; surface states; quantum well states; thickness selective stability; first-principles calculation

Citation Formats


                    Liu, Xiaojie, and Wang, Cai -Zhuang. Interplay between quantum confinement and surface effects in thickness selective stability of thin Ag and Eu films.  United States: N. p., 2017. 
Web.  doi:10.1088/1361-648X/aa6556.

Copy to clipboard


                    Liu, Xiaojie, & Wang, Cai -Zhuang. Interplay between quantum confinement and surface effects in thickness selective stability of thin Ag and Eu films.  United States.  https://doi.org/10.1088/1361-648X/aa6556

Copy to clipboard


                    Liu, Xiaojie, and Wang, Cai -Zhuang. Mon .  
"Interplay between quantum confinement and surface effects in thickness selective stability of thin Ag and Eu films".  United States.  https://doi.org/10.1088/1361-648X/aa6556.  https://www.osti.gov/servlets/purl/1377863.

Copy to clipboard


                    
@article{osti_1377863,

  title        = {Interplay between quantum confinement and surface effects in thickness selective stability of thin Ag and Eu films},

  author       = {Liu, Xiaojie and Wang, Cai -Zhuang},

  abstractNote = {Using first-principles calculations, we show that both face-centered cubic (fcc) Ag (1 1 0) ultrathin films and body-centered cubic (bcc) Eu(1 1 0) ultrathin films exhibit thickness selective stability. Furthermore, the origin of such thickness selection is different. While the thickness selective stability in fcc Ag(1 1 0) films is mainly due to the well-known quantum well states ascribed to the quantum confinement effects in free-electron-like metal films, the thickness selection in bcc Eu(1 1 0) films is more complex and also strongly correlated with the occupation of the surface and surface resonance states.},

  doi          = {10.1088/1361-648X/aa6556},

  journal      = {Journal of Physics. Condensed Matter},

  number       = 18,

  volume       = 29,

  place        = {United States},

  year         = {2017},

  month        = {4}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1088/1361-648X/aa6556

Other availability

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Electronic properties of pseudomorphic metallic films: Photoemission and inverse photoemission measurements

Miscellaneous Mankey, G J

The methods used to grow pseudomorphic fcc films of Ni, Co, and Fe on Cu(001) are described. High-quality epitaxial films are produced by vapor deposition in an ultra-high vacuum environment on suitably prepared substrates. The morphology of these films is characterized using a variety of experimental techniques: Auger electron spectroscopy, low-energy electron diffraction, reflection high-energy electron diffraction, and thermal desorption spectroscopy of adsorbed hydrogen. The magnetic properties of the films are measured with a surface magneto-optic Kerr effect magnetometer. The occupied and unoccupied electronic band dispersions and critical point energies are determined with photoemission and inverse photoemission measurements. These measurementsmore »« less
Annual Report: Fuels (30 September 2012)

Technical Report Link, Dirk ; Morreale, Bryan

The thermochemical conversion of fossil fuels through gasification will likely be the cornerstone of future energy and chemical processes due to its flexibility to accommodate numerous feeds (coal, biomass, natural gas, municipal waste, etc.) and to produce a variety of products (heat, specialty chemicals, power, etc.), as well as the inherent nature of the process to facilitate near zero emissions. Currently, the National Energy Technology Laboratory (NETL) Fuels Program has two pathways for syngas utilization: The production of transportation fuels, chemicals, or chemical intermediates. The hydrogen production as an intermediate for power production via advanced combustion turbines or fuel cells.more »« less
https://doi.org/10.2172/1098238

Full Text Available
Low-energy electron diffraction and photoemission study of epitaxial films of Cu on Ag l brace 001 r brace

Journal Article Li, H ; Tian, D ; Quinn, J ; ... - Physical Review, B: Condensed Matter; (USA)

The epitaxy of Cu on Ag{l brace}001{r brace} is studied by qualitative and quantitative low-energy electron diffraction (LEED) and by angle-resolved photoemission. LEED indicates that ultrathin (two- to three-atomic-layer) films have a limited amount of long-range order, and the ordered component has interlayer spacings of 1.45{plus minus}0.06 A, which compares well with the theoretically determined cubic lattice constant 2.87{plus minus}0.06 A of a metastable body-centered-cubic (bcc) modification of Cu. Thicker (10- to 12-layer) films have almost no long-range order, and photoemission indicates that regions of bcc and fcc Cu coexist amid large amounts of defects.
https://doi.org/10.1103/PhysRevB.43.6342
Synthesis and Properties of Stable Sub-2-nm-Thick Aluminum Nanosheets: Oxygen Passivation and Two-Photon Luminescence

Journal Article Luo, Liang ; Li, Yang ; Sun, Xiong ; ... - Chem

The high reductivity of aluminum (Al) implies the utmost difficulty in achieving oxygen-resistant, ultrathin Al nanostructures. Herein, we demonstrate that sub-2-nm-thick Al nanosheets with ambient stability can be synthesized through a facile wet-chemical approach. Selective oxygen adsorption on the (111) facets of the face-centered cubic (fcc) Al has been revealed as the reason of controlling the morphology and stability of Al nanosheets, tailoring the thickness from 18 nm to 1.5 nm. Within the (111) surface passivation, Al nanosheets have achieved satisfactory stability, ensuring the possibility to study thickness-dependent localized surface plasmon resonance from visible to near-infrared (near-IR) region, and significantlymore »« less
Cited by 1
https://doi.org/10.1016/j.chempr.2019.11.004
Strain-induced elastic moduli softening and associated fcc{r_reversible}bcc transition in iron

Journal Article Lai, W S ; Zhao, X S ; Department of Applied Mechanics, Beijing Institute of Technology, Beijing 100081 - Applied Physics Letters

Using molecular dynamics calculations we demonstrate that with decreasing the thickness of ultrathin body-centered-cubic (bcc) {alpha}-Fe film with (001) surfaces, the biaxial strain results in first bcc(001){yields}face-centered-cubic (fcc) (001) transition along the inverse Bain path due to softening of C{sub 33}, and then fcc(001){yields}bcc(011) because of shear modulus vanishing along fcc <110> directions. For the bulk fcc {gamma}-Fe, the tensile biaxial strain along the Bain path transforms fcc (001) into bcc (001) with fcc<110> parallel bcc<100>, while compressive strain results in shear instability, in agreement with recent ab initio calculations.
https://doi.org/10.1063/1.1815060

Similar Records