A DFT Study of the Strain Effect on the Optical Properties of Linear and Dimerized Titanium Nanochains

• Authors: Z. Sohrabikia , M. Jafari
• Languages of publication: EN

Abstracts

EN

Optical properties of both linear and dimerized nanochains of titanium at different atomic distances are calculated using the full potential linearized augmented plane wave plus local orbital method, and using the generalized gradient approximation. When Ti nanochains were compressed, the position of critical points such as static dielectric constants and the main peaks in optical spectra shifted with an increased or decreased energy comparative to that at equilibrium constants. Under tensile strain ε_{1max}(ω) decreases in linear and dimerized structures. The plasma frequency for both structures decreases as the bond length increases. Moreover, the peaks of the energy loss function move toward higher energies with increasing bond length for linear structure, while they do not change significantly for the dimerized structure. The absorption for both nanostructures decreases by increasing the bond lengths.

Keywords

EN

71.15.Mb; 78.67.Uh; 62.23.Hj

Discipline

• 62.23.Hj: Nanowires
• 78.67.Uh: Nanowires
• 71.15.Mb: Density functional theory, local density approximation, gradient and other corrections

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 3
• Pages: 344-347

Dates

published

2016-03

received

2015-07-15

Contributors

author

Z. Sohrabikia

• Department of Physics, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran, Iran

author

M. Jafari

• Department of Physics, K.N. Toosi University of Technology, P.O. Box 16315-1618, Tehran, Iran

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Identifiers

DOI

10.12693/APhysPolA.129.344