Transmission of longitudinal phonons through a mass-spring nanoring

Rabani, Hassan; Mardaani, Mohammad

doi:10.1016/j.physe.2014.11.020

Cited by 3 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally, in the weaker horizontal spring constant in the middle of the system (α < 0), the transmission goes more rapidly to zero with respect to the stronger ones (α > 0). Due to the confinement effects [28], in the non-ideal structures (α or/and λ ≠ 0), some peaks and valleys appear in the transmission spectra. Especially, in figure 2 (b), we see an intrinsic frequency gap at a fixed value of α that originates from the being system in the alternative configuration.…”

Section: Resultsmentioning

confidence: 99%

“…In this paper, we suggest a model for heat transport properties of an extended mass-spring chain due to the importance of nonlinearity by using the Green function's theory method according to our previous approach and works [26][27][28]. The computing phonon transmission coefficient, thermal conductivity and specific heat in the presence of the nonlinearity are the main purposes of the paper.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinearity effects on thermal transport properties of a mass-spring chain

Akbari Chaleshtori,

Rabani,

Mardaani

2024

Phys. Scr.

Self Cite

View full text Add to dashboard Cite

Using Green's function technique, we present a self-consistent formalism to study the phonon transport propertiesof an extended nonlinear mass-spring chain. We calculate the phonon transmission coefficient, thermal conductivity,and specific heat for some chains with different configurations of masses feeling the nonlinearity potential.The numerical results show that in a critical value of the nonlinearity coefficient, a sharp decrease in thermalconductivity will be observed. The same scenario happens in a critical temperatureproportional to the inverse of the nonlinearity coefficient for the specific heat.Indeed, thermal conductor-insulator transition can occur in the system depending on the strength and distribution of nonlinearity.The model can aid our understanding of the effect of lattice nonlinearity on thermalproperties of one-dimensional materials to design the thermal switches.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%