Article
Mathematics, Applied
Constantino Tsallis, Henrique Santos Lima, Ugur Tirnakli, Deniz Eroglu
Summary: This paper numerically studies the thermal transport in d=1,2,3 dimensions of classical inertial nearest-neighbor XY ferromagnet. The expression of thermal conductance is found to be related to the system size L and temperature T, and inversely proportional to the thermal conductance in the infinite system size limit. These findings contribute to the understanding of the thermal conductivity of materials.
PHYSICA D-NONLINEAR PHENOMENA
(2023)
Article
Physics, Fluids & Plasmas
Yanjiang Guo, Yachao Sun, Lei Wang
Summary: The energy diffusion process in a few two-dimensional Fermi-Pasta-Ulam-type lattices is simulated numerically through the equilibrium local energy spatiotemporal correlation. The diffusion propagator consists of a bell-shaped central heat mode and a sound mode extending with a constant speed, in accordance with the nonlinear fluctuating hydrodynamic theory. An effective phonon approach is proposed to estimate the frequencies of renormalized phonons and the sound speed accurately. However, discrepancies are noticeably observed.
Article
Chemistry, Physical
Jian Li, Penghua Ying, Ting Liang, Yao Du, Jianli Zhou, Jin Zhang
Summary: The mechanical and thermal properties of a hybrid nanotube, CNT@GNT, consisting of a coaxial carbon nanotube (CNT) inside a graphyne nanotube (GNT), are investigated using molecular dynamics simulations. The results show that the mechanical properties of CNT@GNT depend on the nanotube chirality of its components. Additionally, the thermal conductivity of CNT@GNT is found to be independent of the nanotube chirality but increases with the length and diameter of the CNT@GNT. Strain engineering is shown to be effective in modulating the thermal conductivity of CNT@GNT.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Physics, Multidisciplinary
Ion Santra, Urna Basu
Summary: The transport properties of an extended system driven by active reservoirs have been explored for the first time in this study. Energy transport between two active reservoirs connected by a chain of harmonic oscillators was analyzed. The stochastic forces exerted by the active reservoirs on the boundary oscillators lead to fascinating behavior of the energy current and kinetic temperature profile. The results show that the stationary active current exhibits non-monotonic changes and a negative differential conductivity due to the Lorentzian frequency spectrum of the active reservoirs.
Article
Physics, Multidisciplinary
Meng-Zi Huang, Jeffrey Mohan, Anne -Maria Visuri, Philipp Fabritius, Mohsen Talebi, Simon Wili, Shun Uchino, Thierry Giamarchi, Tilman Esslinger
Summary: We measure the superfluid transport of strongly interacting fermionic lithium atoms through a quantum point contact by utilizing local, spin-dependent particle loss. We find that the characteristic non-Ohmic superfluid transport, enabled by high-order multiple Andreev reflections, transitions into an excess Ohmic current when the dissipation strength exceeds the superfluid gap. Our developed model, which includes mean-field reservoirs connected to a dissipative site via tunneling, reproduces the observed nonequilibrium particle current in the Keldysh formalism, but it does not fully explain the observed loss rate or spin current.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Fluids & Plasmas
I. F. Herrera-Gonzalez, J. A. Mendez-Bermudez
Summary: We investigate the localization properties of normal modes in harmonic chains with weak disorder, including mass disorder correlations, spring disorder correlations, and mass-spring disorder correlations. We obtain an expression for the localization length valid for arbitrary disorder correlations and for the whole frequency band. Moreover, we show how to generate effective mobility edges using disorder with long range self-correlations and cross-correlations. Our results also reveal the presence of transparent windows in phonon transport that can be manipulated through disorder correlations even for short chain sizes. These findings have implications for heat conduction in harmonic chains and may find applications in modulating thermal transport and designing high-thermal-conductivity materials.
Article
Physics, Multidisciplinary
Da Ke, Wei Zhong, Sergey Dmitriev, Daxing Xiong
Summary: We have developed an effective numerical scheme to capture hydrodynamic modes in classical anharmonic chains. Our results show the limitations of the current theories and provide new insights into thermal transport.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2022)
Article
Multidisciplinary Sciences
Adib Tavakoli, Jeremie Maire, Boris Brisuda, Thierry Crozes, Jean-Francois Motte, Laurent Saminadayar, Eddy Collin, Olivier Bourgeois
Summary: The realization of thermal diodes/rectifiers is crucial for practical applications of heat transport control. While progress has been made experimentally at the macroscale, achieving efficient rectification at the nanoscale still poses challenges, requiring a better understanding of heat carriers' transport and nonlinear mechanisms.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Ryuhei Sato, Kazuto Akagi, Shigeyuki Takagi, Kartik Sau, Kazuaki Kisu, Hao Li, Shin-ichi Orimo
Summary: Topological data analysis based on persistent homology is applied to the molecular dynamics simulation of the AgI a-phase to analyze the ion migration mechanism effectively. The persistence diagrams of a-AgI record the shape and size of the ring structures in the atomic configurations, clearly showing the emergence of four-membered rings formed by two Ag and two I ions at high temperatures, which are common structures during the Ag ion migration. The potential energy change due to the deformation of the four-membered ring agrees well with the activation energy calculated from the conductivity Arrhenius plot, and the concerted motion of two Ag ions via the four-membered ring is successfully extracted from molecular dynamics simulations, providing new insight into the specific mechanism of the concerted motion.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Huan Lei, Xiantao Li
Summary: The text discusses the non-Markovian behavior in coarse-grained molecular systems and introduces a Galerkin projection approach that efficiently selects subspaces and provides a stochastic model for correct non-Markovian dynamics.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Mechanics
Jasleen Kaur, Ramandeep S. Johal
Summary: The text discusses the interactions between thermoelectricity on a global and local scale, as well as the impact of thermodynamic forces on flows. By analyzing global flux-force relations, it is proved that the equality of global cross-coefficients is derived from a similar property of local coefficients. Additionally, the influence of thermal flux appearing in the rate of entropy production on global coefficients is studied.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2021)
Article
Chemistry, Multidisciplinary
Iuliana M. Andrei, Wenzhang Chen, Marc Baaden, Stephane P. Vincent, Mihail Barboiu
Summary: Transport of water across cell membranes is a fundamental process for important biological functions. In this study, artificial water channels with variable pore structures were investigated, and it was found that they can effectively transport water molecules with selective transport performances.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Xiangrui Li, Wentao Chen, Gyoko Nagayama
Summary: This study investigates the thermal energy transport across an SiC-SiC nanogap with four pairs of atomic surface terminations using classical nonequilibrium molecular dynamics simulations. The results show that when the atomic surface terminations are identical, the net heat flux and thermal gap conductance are much greater than in the nonidentical cases. Thermal resonance occurs between identical atomic terminated layers, whereas it disappears between nonidentical ones. The notable enhancement of heat transfer in the identical C-C case is attributed to optical phonon transmission, with thermal resonance between the C-terminated layers. This study deepens the understanding of phonon heat transfer across nanogaps and provides insights into thermal management in nanoscale SiC power devices.
Article
Materials Science, Multidisciplinary
Yangjie Wang, Jige Chen
Summary: This study reveals a crossover of wave-packet dynamics from a phonon-dominated to a soliton-dominated state in a quasi-one-dimensional molybdenum disulfide (MoS2) sheet at high temperatures below its melting point. The anomalous energy transport exhibits a universality class with a thermal conductivity divergence exponent alpha = 2/5 at a finite length scale within 2000 nm when solitons are excited above 600 K, indicating a peculiar solitonlike contribution to thermal conduction in low-dimensional crystalline solids at high temperatures.
Article
Physics, Fluids & Plasmas
Wallace Manheimer, Denis Colombant
Summary: This paper develops an approximate steady state Fokker Planck theory for energetic electron transport in a spherical laser fusion target and introduces two approximate methods of solution. Comparison of the two methods in planar geometry shows that even though the approximations are very different, they give about the same result, increasing their credibility. Spherical effects may play a key role for instability generated electrons with much higher energy, providing an additional spherical barrier protecting the fuel.
PHYSICS OF PLASMAS
(2021)
Article
Multidisciplinary Sciences
Yunshan Zhao, Xiangjun Liu, Ashutosh Rath, Jing Wu, Baowen Li, WuXing Zhou, Guofeng Xie, Gang Zhang, John T. L. Thong
SCIENTIFIC REPORTS
(2020)
Article
Physics, Applied
Xu Zheng, Baowen Li
PHYSICAL REVIEW APPLIED
(2020)
Editorial Material
Physics, Multidisciplinary
Qilang Wang, Yunyu Chen, Adili Aiyiti, Minrui Zheng, Nianbei Li, Xiangfan Xu
Article
Physics, Condensed Matter
Nianbei Li, Junjie Liu
JOURNAL OF PHYSICS-CONDENSED MATTER
(2020)
Review
Physics, Multidisciplinary
Zhongwei Zhang, Yulou Ouyang, Yuan Cheng, Jie Chen, Nianbei Li, Gang Zhang
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2020)
Article
Physics, Applied
Yuning Guo, Baowen Li, Xiaobo Yin
PHYSICAL REVIEW APPLIED
(2020)
Article
Physics, Condensed Matter
Hengzhe Yan, Jie Ren, Nianbei Li
EUROPEAN PHYSICAL JOURNAL B
(2020)
Article
Materials Science, Multidisciplinary
Weijun Ren, Zhongwei Zhang, Cuncun Chen, Yulou Ouyang, Nianbei Li, Jie Chen
FRONTIERS IN MATERIALS
(2020)
Article
Physics, Applied
Xin Fang, Jihong Wen, Li Cheng, Baowen Li
Summary: The study introduces a bidirectional, nonreciprocal, high-quality elastic wave diode that rectifies elastic waves in both forward and backward directions in an elastic metamaterial, breaking reciprocity through three different mechanisms. This bidirectional diode opens up possibilities for controlling information and energy transport, potentially serving as wave insulators.
PHYSICAL REVIEW APPLIED
(2021)
Article
Multidisciplinary Sciences
Jiaxin Li, Ying Li, Pei-Chao Cao, Minghong Qi, Xu Zheng, Yu-Gui Peng, Baowen Li, Xue-Feng Zhu, Andrea Alu, Hongsheng Chen, Cheng-Wei Qiu
Summary: The reciprocity principle governs the symmetry in transmission of electromagnetic and acoustic waves, as well as the diffusion of heat. Recent interest in materials with time-modulated properties has shown efficient breaking of reciprocity for various forms of diffusion. However, time modulation may not be a viable approach to break thermal reciprocity. Our theoretical framework and experimental demonstration highlight the generally preserved nature of thermal reciprocity in dynamic materials.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Gazendra Shakya, Tao Yang, Yu Gao, Apresio K. Fajrial, Baowen Li, Massimo Ruzzene, Mark A. Borden, Xiaoyun Ding
Summary: This study demonstrates the manipulation of internal structure of disk-in-sphere endoskeletal droplets using acoustic wave. The authors developed a model to investigate the physical mechanisms behind this phenomenon and found that the disk orientation can be adjusted reversibly with the frequency of the acoustic driving. This dynamic behavior may provide a pathway for directed assembly of novel hierarchical colloidal architectures and intracellular organelles or intra-organoid structures.
NATURE COMMUNICATIONS
(2022)
Review
Physics, Multidisciplinary
Jie Chen, Xiangfan Xu, Jun Zhou, Baowen Li
Summary: Interfacial thermal resistance (ITR) is a major obstacle for heat transfer between materials, and understanding it is crucial for efficient heat dissipation in electronic and photonic devices, batteries, etc. This comprehensive review examines ITR, focusing on theoretical, computational, and experimental developments over the past 30 years. It covers fundamental theories, computational methods, and experimental tools for probing ITR, as well as challenges and opportunities in studying nanoscale and atomic scale interfaces.
REVIEWS OF MODERN PHYSICS
(2022)
Editorial Material
Chemistry, Multidisciplinary
Baowen Li, Jianfang Wang, Tao Deng
Article
Chemistry, Multidisciplinary
Brendan McBennett, Albert Beardo, Emma E. Nelson, Begon Abad, Travis D. Frazer, Amitava Adak, Yuka Esashi, Baowen Li, Henry C. Kapteyn, Margaret M. Murnane, Joshua L. Knobloch
Summary: Nanostructuring allows control over heat flow in semiconductors, but bulk models are limited by boundary effects and first-principles calculations are computationally expensive. We use extreme ultraviolet beams to study phonon transport in a nanostructured silicon metalattice and observe reduced thermal conductivity. We develop a predictive theory that explains this behavior based on nanoscale confinement effects.
Article
Physics, Fluids & Plasmas
Jian Wang, Tian-xing Liu, Xiao-zhi Luo, Xiu-Lian Xu, Nianbei Li
