Work function for the deformed metal surface

Loskutov, Stephan

doi:10.1016/j.susc.2005.04.011

Cited by 13 publications

(9 citation statements)

References 8 publications

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“…It can also be noted that the change in work function due to strain is slightly different for Mo and W (110) surfaces, i.e. in the strain range of −0.05-0.05, the work function change is 0.4 to −0.22 eV for Mo, while it is 0.31 to −0.21 eV for W. It should be pointed out that the general trends of the strain effect on work function from first-principles calculations are in good agreement with those from experimental studies as well as semi-empirical models found in the literature [27][28][29][30].…”

Section: Strain Effect On Work Functionsupporting

confidence: 83%

Electronic structure and related properties of Mo–W: a density functional study

Gong

Cho

2008

J. Phys.: Condens. Matter

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Density functional calculation reveals that Mo and W atoms exhibit a tendency toward layered configurations in bulk Mo-W within the entire composition range at 0 K. Calculation also shows that the electronic structure of bulk Mo is very similar to that of bulk W in terms of the overall density of states, and the Mo-W interaction has a negligible effect on the electronic structure of bulk Mo-W. Moreover, it is discovered that strain has an important effect on the work function, while the changes in work function due to strain are slightly different for Mo and W (110) surfaces. In addition, it is found that Mo surface segregation is energetically favorable for the Mo-W surface within the entire composition range, while it has a negligible effect on the electronic structures of the Mo-W surface.

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Section: Strain Effect On Work Functionsupporting

confidence: 83%

Electronic structure and related properties of Mo–W: a density functional study

Gong

Cho

2008

J. Phys.: Condens. Matter

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“…19 A number of previous works have shown an effect of load on electrochemical potential. [20][21][22][23][24][25][26] A clear difference was observed between the effect of elastic and plastic loads on the EWF. For elastic loads it was considered that the stress mainly influences the potential drop across the metal/vacuum interface due to the changing in the distance between surface atoms, while the change of the chemical potential in the metal bulk is negligible.…”

mentioning

confidence: 94%

“…22,24 For plastic loads, the stress above the yield point creates plastic deformation with the generation of dislocations. 20,21,[24][25][26][27] The changing of EWF after elastic and plastic strains has also been analyzed for stainless steel. 23,26 For the duplex grade AISI S31803 it was observed that during strain ferrite had a lower potential than austenite and that elastic deformation increased EWF by 0.020-0.025 eV whereas plastic deformation decreased the EWF 0.3 eV.…”

mentioning

confidence: 99%

Influence of Mechanical Stress on the Potential Distribution on a 301 LN Stainless Steel Surface

Fuertes

Назаров

Vucko

et al. 2015

J. Electrochem. Soc.

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The aim of the present work was to study the influence of the stress on the electrode potential of the austenitic stainless steel301LN using Scanning Kelvin Probe (SKP). It was found that elastic deformation reversibly ennobles the potential whereas plasticdeformation decreases the potential in both tensile and compressive deformation mode and this decrease is retained even 24 h afterremoval of the load. To interpret the stress effects, different surface preparations were used and the composition and thickness ofthe passive film were determined by GDOES. Slip steps formed due to plastic deformation were observed using AFM. The effect ofplastic strain on the potential is explained by the formation of dislocations, which creates more a defective passive film.

QC 20160516

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“…These defects are connected with charge redistribution to the defected material surface. Non-uniform charge distribution on the surface can be appeared as if the on-site Coulomb interaction and repulsive interaction of charges occupying adjacent sites are taken into account [12,13]. In the presence of nanoscale defects, the Coulomb interaction of localized charges starts to play a more significant role and strongly modify the local electronic density of states.…”

Section: Resultsmentioning

confidence: 99%

Au micro-pattern fabrication on cellulose paper: comparison of μ-contact printing and liftoff techniques

Lim

Cho

Kim

et al. 2007

J. Micromech. Microeng.

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Micro-contact printing (μ-CP) and liftoff techniques were employed to fabricate Au micro-patterns onto electro-active paper (EAPap) for biodegradable and flexible microelectromechanical system (MEMS) application. Conventional lithography and etching techniques cannot be utilized to fabricate micropatterns on EAPap having interesting actuating properties due to its hydrophilic and flexible characteristics. The cause of nanodefects on the Au pattern after the μ-CP process was investigated to enhance the pattern quality. Three different solvents were utilized to investigate the consequence of the solvent polarity during the 3-mercaptopropyltrimethoxysilane (MPTMS) self-assembled monolayer (SAM) fabrication and after the μ-CP process. The defects, such as microcracks and nanograins, were closely related to the solvent polarity. The higher polar solvent turned out smaller defects than the lower polar solvent due to the reduction of the solvent swell onto the PDMS stamp during SAM layer formation. The liftoff technique exhibited a new way of fabricating various metal patterns on EAPap without any nanodefects.

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Work function for the deformed metal surface

Cited by 13 publications

References 8 publications

Electronic structure and related properties of Mo–W: a density functional study

Electronic structure and related properties of Mo–W: a density functional study

Influence of Mechanical Stress on the Potential Distribution on a 301 LN Stainless Steel Surface

Au micro-pattern fabrication on cellulose paper: comparison of μ-contact printing and liftoff techniques

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