Harmonic chains and the thermal diode effect

Kalantar, Na'im; Agarwalla, Bijay Kumar; Segal, Dvira

doi:10.1103/physreve.103.052130

Cited by 16 publications

(5 citation statements)

References 50 publications

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“…The transition from SPhP to SPPP by thermal injection of free carriers and the consequent change in the mean free path of the surface electromagnetic wave demonstrated in this work highlight effects that would set an upper limit on the energy-carrying capacity of surface waves at high temperatures. Furthermore, given the order of magnitude difference that can exist between the mean free paths of an SPhP wave and an SPPP wave, the results presented in this work provide a means to effectively tune the thermal current through thermal injection of free carriers and thus design the desired thermal analogs of currently used electronic systems [45][46][47][48].…”

Section: Resultsmentioning

confidence: 99%

Transition from surface phonon-polariton to surface phonon–plasmon-polariton by thermal injection of free carriers

El-Helou¹,

Wu²,

Bruyant³

et al. 2022

J. Phys.: Condens. Matter

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Surface phonon-polariton, surface plasmon-polariton, and surface phonon-plasmon-polariton are evanescent electromagnetic waves confined to the surfaces of different classes of materials, which gives each of them particular characteristics suitable for diverse applications. Natural or forced injection of free carriers in a dielectric may change the surface phonon-polariton into a surface phonon-plasmon-polariton. Understanding this effect provides an insight into the fundamental physics of surface electromagnetic waves on dielectrics and offers tools that can be used to develop new technologies. In this contribution, we experimentally study the transition from surface phonon-polariton to surface phonon-plasmon-polariton on a yttrium-doped aluminum nitride polycrystalline substrate by thermal injection of free carriers. We perform this study using reflectivity measurements in the far- and mid-infrared spectral range and at a variable temperature, taking the necessary precautions to eliminate any errors that may arise from measurement artifacts and inaccurate analysis of the spectra. We demonstrate that thermal injection of a significant free carrier density can tune the surface phonon-polariton into a much shorter mean free path surface phonon-plasmon-polariton.

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Section: Resultsmentioning

confidence: 99%

Transition from surface phonon-polariton to surface phonon–plasmon-polariton by thermal injection of free carriers

El-Helou¹,

Wu²,

Bruyant³

et al. 2022

J. Phys.: Condens. Matter

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“…Details on the specific functional forms we use for the time-dependent temperatures are given below. It is important to note that the harmonic system in equation ( 1) with correlations in equation ( 2) does not exhibit thermal rectification effects, even in the presence of temperature oscillations [20,[82][83][84][85]. Our aim in this article is to examine if energy storage rectification effects can be generated in a harmonic system by applying an oscillatory temperature gradient.…”

Section: Modelmentioning

confidence: 99%

The effect of temperature oscillations on energy storage rectification in harmonic systems

Chen,

Craven

2024

J. Phys.: Condens. Matter

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Rectification, the preferential transport of a current in one direction through a system, has garnered significant attention in molecules because of its importance for controlling thermal and electronic currents at the nanoscale. Here, we report the presence of energy storage rectification effects in a molecular chain. This phenomenon is generated by subjecting a harmonic molecular chain to an oscillating temperature gradient and showing that the energy absorption rate of the system depends on the direction of the gradient. We examine how the energy storage rectification ratios in the chain are affected by the oscillating gradient, asymmetry in the chain, and the system parameters. We find that energy storage rectification can be observed in harmonic lattice structures with time-dependent temperatures and that, correspondingly, anharmonicity is not required to generate this rectification mechanism in such systems.

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“…Two beads at the boundaries are considered part of the solids, and they directly exchange energy with Langevin thermostats. [40] There are many works that demonstrated the possibility of manipulating heat flow by changing the structure or parameters of a one-dimensional anharmonic lattice. Although the dimension extension of the aforementioned coupled FK and Fermi-Pasta-Ulam (FPU) lattice system has been performed in both two [41] and three dimensions, [42] with high rectification efficiencies as in the corresponding 1D case, the studies of 2D and 3D thermal diodes in other systems in two-dimensional or three-dimensional systems have not been as extensive as that in one-dimensional systems.…”

Section: Phononicsmentioning

confidence: 99%

“…Two beads at the boundaries are considered part of the solids, and they directly exchange energy with Langevin thermostats. Kalantar et al [40] proved that perfectly harmonic junctions can rectify heat once the reservoirs (described by Langevin white noise) are placed under temperature gradients, which are asymmetric at the two sides, an effect called "temperature-gradient harmonic oscillator diodes. "…”

Section: Phononicsmentioning

confidence: 99%

Advances of phononics in 2012–2022

Ding¹,

Zhu²,

Shen³

et al. 2022

Chinese Phys. B

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Due to its great potential applications in thermal management, heat control, and quantum information, phononics has gained increasing attentions since the first publication in Review of Modern Physics 84, 1045 (2012). Many theoretical and experimental progresses have been achieved in the past decade. In this paper, we first give a critical review of the progress in thermal diodes and transistors, especially in classical regime. Then, we give a brief introduction on the new developing research directions such as topological phononics and quantum phononics. In the third part, we discuss the potential applications. Last but not least, we point out the outlook and challenges ahead.

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Harmonic chains and the thermal diode effect

Cited by 16 publications

References 50 publications

Transition from surface phonon-polariton to surface phonon–plasmon-polariton by thermal injection of free carriers

Transition from surface phonon-polariton to surface phonon–plasmon-polariton by thermal injection of free carriers

The effect of temperature oscillations on energy storage rectification in harmonic systems

Advances of phononics in 2012–2022

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