Article
Physics, Fluids & Plasmas
I. P. Koroleva(Kikot), Yu. A. Kosevich
Summary: This paper investigates the effects of nonlinearity on two-path phonon interference in the transmission through two-dimensional arrays of atomic defects in a lattice. The emergence of transmission antiresonance is demonstrated in the few-particle nanostructures, highlighting the universality of destructive-interference origin in transmission antiresonances. The paper also discusses the generation of higher harmonics and the shift of antiresonance frequency caused by interatomic nonlinearities. The importance and understanding of interference and nonlinearity in phonon propagation through anharmonic atomic defects are emphasized. Rating: 8/10
Article
Multidisciplinary Sciences
Ning Wang, He Wen, Juan Carlos Alvarado Zacarias, Jose Enrique Antonio-Lopez, Yuanhang Zhang, Daniel Cruz Delgado, Pierre Sillard, Axel Schulzgen, Bahaa E. A. Saleh, Rodrigo Amezcua-Correa, Guifang Li
Summary: Laser, as one of the greatest inventions in history, has been widely applied and had a profound impact on society. However, previous lasers can only operate in one physical domain. In this study, we have experimentally demonstrated the simultaneous lasing of photons and phonons in a two-mode silica fiber ring cavity. This multidomain laser has the potential to be applied in various fields such as optomechanical sensing, microwave generation, and quantum information processing.
Article
Physics, Applied
Weijun Ren, Jie Chen, Gang Zhang
Summary: This paper reviews the impact of twisted angle on the phonon properties and discusses the research on phonon transport behavior. It also addresses the unresolved questions and challenges in the phonon characteristics of twisted two-dimensional materials and proposes possible solutions.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Multidisciplinary
Sheng Liu, Andres Granados del Aguila, Dhiman Bhowmick, Chee Kwan Gan, T. Thu Ha Do, M. A. Prosnikov, David Sedmidubsky, Zdenek Sofer, Peter C. M. Christianen, Pinaki Sengupta, Qihua Xiong
Summary: In FePS3, strong coupling between magnons and phonons was directly observed using magneto-Raman spectroscopy at magnetic fields up to 30 Tesla. A hybridized magnon-phonon quasiparticle formed due to field-driven resonance with a nearby phonon mode. The polarized Raman results demonstrated the transfer of spin angular momentum from magnons to phonons, generating phonon spin through strong coupling.
PHYSICAL REVIEW LETTERS
(2021)
Article
Geochemistry & Geophysics
Gerardo Di Martino, Alessio Di Simone, Antonio Iodice, Daniele Riccio
Summary: Bistatic radars, with a focus on the relevance of circularly polarized signals in opportunistic GNSS reflectometry applications, have gained increasing interest in recent years. Research on bistatic electromagnetic scattering models plays a crucial role in the analysis, simulation, and performance prediction of these systems, including the consideration of both linear and circular polarization bases in bistatic radar signals.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Materials Science, Multidisciplinary
Yangyu Guo, Zhongwei Zhang, Marc Bescond, Shiyun Xiong, Masahiro Nomura, Sebastian Volz
Summary: This study presents a fully quantum theoretical scheme to quantify the effect of anharmonic phonon-phonon scattering at a solid/solid interface. The research reveals that high-frequency phonons are mainly affected by local anharmonic interactions, while both local and nonlocal interactions are important for low-frequency phonons. The anharmonic decay of interfacial phonon modes plays a crucial role in bridging bulk modes across the interface.
Article
Thermodynamics
Chao Yang, Jian Wang, Dezhi Ma, Zhiqiang Li, Zhiyuan He, Linhua Liu, Zhiwei Fu, Jia-Yue Yang
Summary: Diamond substrate with superior thermal conductivity has been considered as a potential solution for heat dissipation in GaN-based power electronics. However, the effects of high concentration Ga/N atomic vacancies on phonon transport across the GaN-diamond interface remain largely unexplored. This study investigates the influence of vacancy-phonon scattering on the thermal resistance of the interface and provides guidance for improving the heat dissipation performance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Review
Chemistry, Physical
Jia-Min Lai, Ya-Ru Xie, Jun Zhang
Summary: Electron-phonon coupling significantly impacts the properties of 2D materials, with inelastic light scattering serving as a powerful experimental tool. This review provides an overview of the basic theory and experimental advances in detecting electron-phonon coupling in 2D materials through Raman and Brillouin scattering techniques.
Article
Chemistry, Multidisciplinary
Jingjing Wang, Ziyang Wang, Kunming Yang, Naiqi Chen, Jiamiao Ni, Jian Song, Quan Li, Fangyuan Sun, Yue Liu, Tongxiang Fan
Summary: Interfacial thermal resistance plays a critical role in heat dissipation. This study investigates the influence of interface defects on phonon scattering and finds that inelastic phonon scattering may greatly promote interfacial heat transport. The findings provide insights into nanoscale heat transport mechanisms at metal/nonmetal interfaces.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Physics, Applied
Zhongyu Wan, Ruiqin Zhang
Summary: Metallic hydrogen has shown room temperature superconductivity, but it is difficult to synthesize experimentally. This study proposes a strategy of inserting ammonium ions in metals to reduce the synthesis pressure of metallic hydrogen. Through high-throughput calculations, 12 elements have been identified to form stable and superconducting hydrides at lower pressures, with the highest superconducting transition temperatures reaching up to 118, 105, and 104 K.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Francesco Macheda, Thibault Sohier, Paolo Barone, Francesco Mauri
Summary: Studies show that the electron-phonon interaction and phonon frequencies of doped polar semiconductors are highly sensitive to long-range Coulomb forces and screening effects of free carriers. A linear-response dielectric-matrix formalism is used to properly account for these screening effects, allowing for controlled approximations. Computational methods have been proposed to evaluate effective charges and the static dielectric function of doped two-dimensional semiconductors from first principles. Results suggest that doping in disproportionated graphene leads to a significant reduction in optical Frohlich and acoustic piezoelectric couplings, as well as the slope of optical longitudinal modes.
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
Materials Science, Multidisciplinary
Pan Xie, Shucheng Shen, Cuilan Wu, Jianghua Chen
Summary: The abnormal orientation relation between face-centered cubic (fcc) and hexagonal close-packed (hcp) phases in high manganese steel is demonstrated due to the intersection of two s-type martensite variants. Crystallographic characteristics including invariant line, habit plane, and atomic steps are characterized using transmission electron microscopy and the quasi-O-line model. Models of phase transformation at the intersection are proposed based on transmission mechanisms of dislocations, enriching phase transformation theories and suggesting the possibility of fabricating stronger and tougher steel.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Optics
Zhaoyuan Wang, Wenjin Ma, Yi Hu, Zhigang Chen, Jingjun Xu
Summary: This study demonstrates interface states between two Floquet-driven photonic lattices with opposite chirality, and investigates their properties and characteristics. Unexpected localized behaviors were observed experimentally, and a continuum model provided a clearer explanation for these behaviors.
Article
Physics, Multidisciplinary
Manuela Boscolo, Helmut Burkhardt, Katsunobu Oide, Michael K. Sullivan
Summary: The design of the FCC-ee aims to improve the efficiency of the machine detector interface through schemes like the crab-waist collision and local chromaticity correction system, but faces the challenge of balancing conflicting constraints from the accelerator and detector to achieve optimal performance choices.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
